Tag Archives: china industrial roller chains

China Professional High Quality Duplex Stainless Steel Industrial Short Pitch Roller Chains and Bush Chain

Product Description

Chain No.

Pitch

P
mm

Roller diameter

d1max
mm

Width between inner plates
b1min
mm
Pin diameter

d2max
mm

Pin length Inner plate depth
h2max
mm
Plate thickness

t/Tmax
mm

Transverse pitch

Pt
mm

Breaking load

Q
kN/lbf

Weight per meter
q kg/m
Lmax
mm
Lcmax
mm
*04CSS-2 6.350 3.30 3.18 2.31 14.50 15.00 6.00 0.80 6.40 5.0/1124 0.28
*06CSS-2 9.525 5.08 4.77 3.58 22.50 23.30 9.00 1.30 10.13 11.0/2473 0.70
08ASS-2 12.700 7.95 7.85 3.96 31.00 32.20 12.00 1.50 14.38 19.2/4316 1.30
41SS-2 12.700 7.77 6.25 3.53 25.70 26.90 9.91 1.30 11.95 12.0/2698 0.91
10ASS-2 15.875 10.16 9.40 5.08 38.90 40.40 15.09 2.03 18.11 30.4/6834 2.18
12ASS-2 19.050 11.91 12.57 5.94 48.80 50.50 18.00 2.42 22.78 43.4/9757 2.92
16ASS-2 25.400 15.88 15.75 7.92 62.70 64.30 24.00 3.25 29.29 77.8/17490 5.15
20ASS-2 31.750 19.05 18.90 9.53 76.40 80.50 30.00 4.00 35.76 120.0/26977 7.80
24ASS-2 38.100 22.23 25.22 11.10 95.80 99.70 35.70 4.80 45.44 150.0/33720 11.70
28ASS-2 44.450 25.40 25.22 12.70 103.30 107.90 41.00 5.60 48.87 204.0/45859 15.14
32ASS-2 50.800 28.58 31.55 14.27 123.30 128.10 47.80 6.40 58.55 267.6/60156 20.14
04BSS-2 6.000 4.00 2.80 1.85 12.30 13.30 5.00 0.60 5.50 4.0/899 0.22
05BSS-2 8.000 5.00 3.00 2.31 13.90 14.50 7.10 0.80 5.64 6.2/1394 0.37
#06BSS-2 9.525 6.35 5.72 3.28 23.40 24.40 8.20 1.30 10.24 11.8/2653 0.87
08BSS-2 12.700 8.51 7.75 4.45 31.00 32.20 11.80 1.60 13.92 21.0/4721 1.40
10BSS-2 15.875 10.16 9.65 5.08 36.10 37.50 14.70 1.70 16.59 29.1/6542 1.96
12BSS-2 19.050 12.07 11.68 5.72 42.00 43.60 16.00 1.85 19.46 37.0/8318 2.46
16BSS-2 25.400 15.88 17.02 8.28 68.00 71.00 21.00 4.15/3.10 31.88 70.7/15894 5.42
20BSS-2 31.750 19.05 19.56 10.19 77.80 81.50 26.40 4.50/3.50 36.45 105.6/23740 7.87
24BSS-2 38.100 25.40 25.40 14.63 101.70 106.20 33.20 6.00/4.80 48.36 182.0/4571 12.43
28BSS-2 44.450 27.94 30.99 15.90 124.60 129.10 36.70 7.50/6.00 59.56 216.0/48557 16.60
32BSS-2 50.800 29.21 30.99 17.81 124.60 129.60 42.00 7.00/6.00 58.55 270.0/60698 20.34

*Bush chain:d1 in the table indicates the external diameter of the bush
*Straight side plates
Stainless steel chains are suitable for corrosive conditions involving food,chemicals pharmaceuticals,etc.and also suitable for high and low temperature conditions.

Roller chain
Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles. It consists of a series of short cylindrical rollers held together by side links. It is driven by a toothed wheel called a sprocket. It is a simple, reliable, and efficient[1] means of power transmission.

Though CHINAMFG Renold is credited with inventing the roller chain in 1880, sketches by Leonardo da Vinci in the 16th century show a chain with a roller bearing.

Construction of the chain
Two different sizes of roller chain, showing construction.
There are 2 types of links alternating in the bush roller chain. The first type is inner links, having 2 inner plates held together by 2 sleeves or bushings CHINAMFG which rotate 2 rollers. Inner links alternate with the second type, the outer links, consisting of 2 outer plates held together by pins passing through the bushings of the inner links. The “bushingless” roller chain is similar in operation though not in construction; instead of separate bushings or sleeves holding the inner plates together, the plate has a tube stamped into it protruding from the hole which serves the same purpose. This has the advantage of removing 1 step in assembly of the chain.

The roller chain design reduces friction compared to simpler designs, resulting in higher efficiency and less wear. The original power transmission chain varieties lacked rollers and bushings, with both the inner and outer plates held by pins which directly contacted the sprocket teeth; however this configuration exhibited extremely rapid wear of both the sprocket teeth, and the plates where they pivoted on the pins. This problem was partially solved by the development of bushed chains, with the pins holding the outer plates passing through bushings or sleeves connecting the inner plates. This distributed the wear over a greater area; however the teeth of the sprockets still wore more rapidly than is desirable, from the sliding friction against the bushings. The addition of rollers surrounding the bushing sleeves of the chain and provided rolling contact with the teeth of the sprockets resulting in excellent resistance to wear of both sprockets and chain as well. There is even very low friction, as long as the chain is sufficiently lubricated. Continuous, clean, lubrication of roller chains is of primary importance for efficient operation as well as correct tensioning.

Lubrication
Many driving chains (for example, in factory equipment, or driving a camshaft inside an internal combustion engine) operate in clean environments, and thus the wearing surfaces (that is, the pins and bushings) are safe from precipitation and airborne grit, many even in a sealed environment such as an oil bath. Some roller chains are designed to have o-rings built into the space between the outside link plate and the inside roller link plates. Chain manufacturers began to include this feature in 1971 after the application was invented by Joseph Montano while working for Whitney Chain of Hartford, Connecticut. O-rings were included as a way to improve lubrication to the links of power transmission chains, a service that is vitally important to extending their working life. These rubber fixtures form a barrier that holds factory applied lubricating grease inside the pin and bushing wear areas. Further, the rubber o-rings prevent dirt and other contaminants from entering inside the chain linkages, where such particles would otherwise cause significant wear.[citation needed]

There are also many chains that have to operate in dirty conditions, and for size or operational reasons cannot be sealed. Examples include chains on farm equipment, bicycles, and chain saws. These chains will necessarily have relatively high rates of wear, particularly when the operators are prepared to accept more friction, less efficiency, more noise and more frequent replacement as they neglect lubrication and adjustment.

Many oil-based lubricants attract dirt and other particles, eventually forming an CHINAMFG paste that will compound wear on chains. This problem can be circumvented by use of a “dry” PTFE spray, which forms a solid film after application and repels both particles and moisture.
Variants in design

Layout of a roller chain: 1. Outer plate, 2. Inner plate, 3. Pin, 4. Bushing, 5. Roller
If the chain is not being used for a high wear application (for instance if it is just transmitting motion from a hand-operated lever to a control shaft on a machine, or a sliding door on an oven), then 1 of the simpler types of chain may still be used. Conversely, where extra strength but the smooth drive of a smaller pitch is required, the chain may be “siamesed”; instead of just 2 rows of plates on the outer sides of the chain, there may be 3 (“duplex”), 4 (“triplex”), or more rows of plates running parallel, with bushings and rollers between each adjacent pair, and the same number of rows of teeth running in parallel on the sprockets to match. Timing chains on automotive engines, for example, typically have multiple rows of plates called strands.

Roller chain is made in several sizes, the most common American National Standards Institute (ANSI) standards being 40, 50, 60, and 80. The first digit(s) indicate the pitch of the chain in eighths of an inch, with the last digit being 0 for standard chain, 1 for lightweight chain, and 5 for bushed chain with no rollers. Thus, a chain with half-inch pitch would be a #40 while a #160 sprocket would have teeth spaced 2 inches apart, etc. Metric pitches are expressed in sixteenths of an inch; thus a metric #8 chain (08B-1) would be equivalent to an ANSI #40. Most roller chain is made from plain carbon or alloy steel, but stainless steel is used in food processing machinery or other places where lubrication is a problem, and nylon or brass are occasionally seen for the same reason.

Roller chain is ordinarily hooked up using a master link (also known as a connecting link), which typically has 1 pin held by a horseshoe clip rather than friction fit, allowing it to be inserted or removed with simple tools. Chain with a removable link or pin is also known as cottered chain, which allows the length of the chain to be adjusted. Half links (also known as offsets) are available and are used to increase the length of the chain by a single roller. Riveted roller chain has the master link (also known as a connecting link) “riveted” or mashed on the ends. These pins are made to be durable and are not removable.

Use

An example of 2 ‘ghost’ sprockets tensioning a triplex roller chain system
Roller chains are used in low- to mid-speed drives at around 600 to 800 feet per minute; however, at higher speeds, around 2,000 to 3,000 feet per minute, V-belts are normally used due to wear and noise issues.
A bicycle chain is a form of roller chain. Bicycle chains may have a master link, or may require a chain tool for removal and installation. A similar but larger and thus stronger chain is used on most motorcycles although it is sometimes replaced by either a toothed belt or a shaft drive, which offer lower noise level and fewer maintenance requirements.
The great majority of automobile engines use roller chains to drive the camshaft(s). Very high performance engines often use gear drive, and starting in the early 1960s toothed belts were used by some manufacturers.
Chains are also used in forklifts using hydraulic rams as a pulley to raise and lower the carriage; however, these chains are not considered roller chains, but are classified as lift or leaf chains.
Chainsaw cutting chains superficially resemble roller chains but are more closely related to leaf chains. They are driven by projecting drive links which also serve to locate the chain CHINAMFG the bar.

Sea Harrier FA.2 ZA195 front (cold) vector thrust nozzle – the nozzle is rotated by a chain drive from an air motor
A perhaps unusual use of a pair of motorcycle chains is in the Harrier Jump Jet, where a chain drive from an air motor is used to rotate the movable engine nozzles, allowing them to be pointed downwards for hovering flight, or to the rear for normal CHINAMFG flight, a system known as Thrust vectoring.
 

Wear

The effect of wear on a roller chain is to increase the pitch (spacing of the links), causing the chain to grow longer. Note that this is due to wear at the pivoting pins and bushes, not from actual stretching of the metal (as does happen to some flexible steel components such as the hand-brake cable of a motor vehicle).

With modern chains it is unusual for a chain (other than that of a bicycle) to wear until it breaks, since a worn chain leads to the rapid onset of wear on the teeth of the sprockets, with ultimate failure being the loss of all the teeth on the sprocket. The sprockets (in particular the smaller of the two) suffer a grinding motion that puts a characteristic hook shape into the driven face of the teeth. (This effect is made worse by a chain improperly tensioned, but is unavoidable no matter what care is taken). The worn teeth (and chain) no longer provides smooth transmission of power and this may become evident from the noise, the vibration or (in car engines using a timing chain) the variation in ignition timing seen with a timing light. Both sprockets and chain should be replaced in these cases, since a new chain on worn sprockets will not last long. However, in less severe cases it may be possible to save the larger of the 2 sprockets, since it is always the smaller 1 that suffers the most wear. Only in very light-weight applications such as a bicycle, or in extreme cases of improper tension, will the chain normally jump off the sprockets.

The lengthening due to wear of a chain is calculated by the

M = the length of a number of links measured

S = the number of links measured

P = Pitch

In industry, it is usual to monitor the movement of the chain tensioner (whether manual or automatic) or the exact length of a drive chain (one rule of thumb is to replace a roller chain which has elongated 3% on an adjustable drive or 1.5% on a fixed-center drive). A simpler method, particularly suitable for the cycle or motorcycle user, is to attempt to pull the chain away from the larger of the 2 sprockets, whilst ensuring the chain is taut. Any significant movement (e.g. making it possible to see through a gap) probably indicates a chain worn up to and beyond the limit. Sprocket damage will result if the problem is ignored. Sprocket wear cancels this effect, and may mask chain wear.

Chain strength

The most common measure of roller chain’s strength is tensile strength. Tensile strength represents how much load a chain can withstand under a one-time load before breaking. Just as important as tensile strength is a chain’s fatigue strength. The critical factors in a chain’s fatigue strength is the quality of steel used to manufacture the chain, the heat treatment of the chain components, the quality of the pitch hole fabrication of the linkplates, and the type of shot plus the intensity of shot peen coverage on the linkplates. Other factors can include the thickness of the linkplates and the design (contour) of the linkplates. The rule of thumb for roller chain operating on a continuous drive is for the chain load to not exceed a mere 1/6 or 1/9 of the chain’s tensile strength, depending on the type of master links used (press-fit vs. slip-fit)[citation needed]. Roller chains operating on a continuous drive beyond these thresholds can and typically do fail prematurely via linkplate fatigue failure.

The standard minimum ultimate strength of the ANSI 29.1 steel chain is 12,500 x (pitch, in inches)2. X-ring and O-Ring chains greatly decrease wear by means of internal lubricants, increasing chain life. The internal lubrication is inserted by means of a vacuum when riveting the chain together.

Chain standards

Standards organizations (such as ANSI and ISO) maintain standards for design, dimensions, and interchangeability of transmission chains. For example, the following Table shows data from ANSI standard B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references[8][9][10] for additional information.

ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25.

For mnemonic purposes, below is another presentation of key dimensions from the same standard, expressed in fractions of an inch (which was part of the thinking behind the choice of preferred numbers in the ANSI standard):

Notes:
1. The pitch is the distance between roller centers. The width is the distance between the link plates (i.e. slightly more than the roller width to allow for clearance).
2. The right-hand digit of the standard denotes 0 = normal chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the number of eighths of an inch that make up the pitch.
4. An “H” following the standard number denotes heavyweight chain. A hyphenated number following the standard number denotes double-strand (2), triple-strand (3), and so on. Thus 60H-3 denotes number 60 heavyweight triple-strand chain.
 A typical bicycle chain (for derailleur gears) uses narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not affect the load capacity. The more sprockets at the rear wheel (historically 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are sold according to the number of speeds they are designed to work with, for example, “10 speed chain”. Hub gear or single speed bicycles use 1/2″ x 1/8″ chains, where 1/8″ refers to the maximum thickness of a sprocket that can be used with the chain.

Typically chains with parallel shaped links have an even number of links, with each narrow link followed by a broad one. Chains built up with a uniform type of link, narrow at 1 and broad at the other end, can be made with an odd number of links, which can be an advantage to adapt to a special chainwheel-distance; on the other side such a chain tends to be not so strong.

Roller chains made using ISO standard are sometimes called as isochains.

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Standard or Nonstandard: Standard
Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car
Surface Treatment: Polishing
Structure: Roller Chain
Material: Stainless Steel
Type: Bush Chain
Samples:
US$ 0/Meter
1 Meter(Min.Order)

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Customization:
Available

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bush chain

What are the safety precautions when working with bush chains?

Working with bush chains requires adherence to certain safety precautions to ensure the well-being of operators and prevent accidents. Here are some important safety measures to consider:

1. Personal protective equipment (PPE): Operators should wear appropriate PPE, including safety glasses, gloves, and protective clothing, to protect themselves from potential hazards such as flying debris, pinching, or entanglement.

2. Training and knowledge: Operators should be properly trained in the operation and maintenance of bush chains. They should have a thorough understanding of the equipment, including its components, functions, and potential hazards. Training should cover safe operating procedures, including start-up, shutdown, and emergency procedures.

3. Lockout/tagout procedures: Before performing any maintenance or repair work on a bush chain, proper lockout/tagout procedures should be followed. This involves isolating the power source, de-energizing the equipment, and securing it with lockout devices or tags to prevent accidental startup.

4. Regular inspections: Regular inspections should be conducted to identify any signs of wear, damage, or misalignment in the bush chain. This includes checking for loose bolts, worn sprockets, damaged links, or any other issues that could compromise the chain’s integrity. Any identified problems should be promptly addressed to prevent further damage or accidents.

5. Proper lifting and handling: When handling bush chains, proper lifting techniques should be employed to prevent strain or injury. Chains should be lifted using appropriate lifting equipment, and operators should avoid placing themselves in a position where they could be caught between moving parts.

6. Clean and well-maintained work environment: The work area should be clean, well-lit, and free from clutter or obstructions. This ensures that operators have clear visibility and can safely access the bush chain without tripping or other hazards.

7. Follow manufacturer guidelines: It is important to follow the manufacturer’s guidelines and recommendations for the safe use, maintenance, and inspection of the specific bush chain being used. This includes following recommended lubrication practices, tensioning guidelines, and any other instructions provided by the manufacturer.

By adhering to these safety precautions, operators can mitigate potential risks associated with working with bush chains and ensure a safe working environment for themselves and others involved in the operation and maintenance of the equipment.

bush chain

What are the noise levels associated with a bush chain?

The noise levels associated with a bush chain can vary depending on several factors. Here are some considerations:

1. Lubrication: Proper lubrication plays a significant role in reducing noise levels. Insufficient lubrication or using the wrong type of lubricant can increase friction and generate more noise. Regular lubrication maintenance is necessary to ensure smooth operation and minimize noise.

2. Chain Tension: Maintaining proper chain tension is essential for reducing noise. Excessive slack or excessive tension can lead to increased vibration and noise. It is important to follow the manufacturer’s recommendations for the correct tensioning of the bush chain.

3. Chain Quality: The quality and design of the bush chain can also affect noise levels. High-quality bush chains are engineered to minimize vibration and noise generation during operation.

4. External Factors: Other external factors such as the design of the sprockets, the surrounding environment, and the presence of any additional components or accessories can influence noise levels. Proper alignment of the chain and sprockets, as well as the use of noise-dampening materials or guards, can help reduce noise.

It is important to note that while bush chains may generate some noise during operation, advancements in chain design and materials have significantly reduced noise levels in modern chains. Additionally, regular maintenance and proper installation can further minimize noise levels associated with a bush chain.

bush chain

How do you select the right bush chain for your application?

Choosing the right bush chain for your application is essential to ensure optimal performance and longevity. Here are some factors to consider when selecting a bush chain:

1. Load Capacity: Evaluate the maximum load that the chain will need to transmit. Consider factors such as weight, acceleration, and shock loads. Choose a bush chain with a load capacity that exceeds the anticipated load to ensure reliable operation.

2. Speed: Determine the operating speed of the chain. Higher speeds may require chains with specialized designs to minimize wear, reduce friction, and maintain accurate timing.

3. Environmental Conditions: Assess the environmental conditions in which the chain will operate. Consider factors such as temperature, humidity, dust, chemicals, and exposure to corrosive substances. Select a bush chain that is designed to withstand the specific conditions of your application.

4. Size and Configuration: Determine the required chain size based on the available space and the dimensions of the sprockets or pulleys. Consider the pitch, width, and overall dimensions of the chain. Additionally, assess whether a standard or custom configuration is needed to meet the application requirements.

5. Lubrication Requirements: Determine the lubrication method and frequency required for the chain. Some bush chains are self-lubricating, while others may require regular lubrication. Consider the availability of lubrication systems and the maintenance requirements of the chain.

6. Reliability and Durability: Assess the expected operational lifespan and the reliability requirements of your application. Look for bush chains from reputable manufacturers known for producing high-quality, durable products. Consider factors such as wear resistance, fatigue strength, and overall reliability.

7. Cost: Evaluate the cost-effectiveness of the bush chain, considering both the initial investment and long-term maintenance costs. Balance the performance requirements with the available budget.

Consult with a knowledgeable supplier or engineer to ensure you select the right bush chain that meets your specific application requirements. They can provide guidance based on their expertise and help you choose a chain that offers optimal performance and durability.

China Professional High Quality Duplex Stainless Steel Industrial Short Pitch Roller Chains and Bush Chain  China Professional High Quality Duplex Stainless Steel Industrial Short Pitch Roller Chains and Bush Chain
editor by CX 2023-10-26

China Best Sales Engineering and Construction Machinery Industrial Transmission 140h-2 Heavy Duty Series Duplex Industrial Machinery Roller Chains and Bush Chains for Oil Field

Product Description

Heavy Duty Series Duplex Roller Chains & Bush Chains

ISO/ANSI
Chain No.
 
Pitch

P
mm
 

Roller diameter

d1max
mm
 

Width between inner plates
b1min
mm
 
Pin diameter

d2max
mm
 

Pin length Inner plate depth
h2max
mm
 
Plate thickness

Tmax
mm
 

Transverse pitch
Pt
mm
 
Tensile strength

Qmin
kN/lbf
 

Average tensile strength
Q0
kN
 
Weight per meter
q kg/m
 
Lmax
mm
Lcmax
mm
140H-2 44.450 25.40 25.22 12.70 109.8 114.4 41.00 6.40 52.20 344.8/78364 437.7 16.60

 

ROLLER CHAIN

Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles. It consists of a series of short cylindrical rollers held together by side links. It is driven by a toothed wheel called a sprocket. It is a simple, reliable, and efficient means of power transmission.

CONSTRUCTION OF THE CHAIN

Two different sizes of roller chain, showing construction.
There are 2 types of links alternating in the bush roller chain. The first type is inner links, having 2 inner plates held together by 2 sleeves or bushings CHINAMFG which rotate 2 rollers. Inner links alternate with the second type, the outer links, consisting of 2 outer plates held together by pins passing through the bushings of the inner links. The “bushingless” roller chain is similar in operation though not in construction; instead of separate bushings or sleeves holding the inner plates together, the plate has a tube stamped into it protruding from the hole which serves the same purpose. This has the advantage of removing 1 step in assembly of the chain.

The roller chain design reduces friction compared to simpler designs, resulting in higher efficiency and less wear. The original power transmission chain varieties lacked rollers and bushings, with both the inner and outer plates held by pins which directly contacted the sprocket teeth; however this configuration exhibited extremely rapid wear of both the sprocket teeth, and the plates where they pivoted on the pins. This problem was partially solved by the development of bushed chains, with the pins holding the outer plates passing through bushings or sleeves connecting the inner plates. This distributed the wear over a greater area; however the teeth of the sprockets still wore more rapidly than is desirable, from the sliding friction against the bushings. The addition of rollers surrounding the bushing sleeves of the chain and provided rolling contact with the teeth of the sprockets resulting in excellent resistance to wear of both sprockets and chain as well. There is even very low friction, as long as the chain is sufficiently lubricated. Continuous, clean, lubrication of roller chains is of primary importance for efficient operation as well as correct tensioning.

LUBRICATION

Many driving chains (for example, in factory equipment, or driving a camshaft inside an internal combustion engine) operate in clean environments, and thus the wearing surfaces (that is, the pins and bushings) are safe from precipitation and airborne grit, many even in a sealed environment such as an oil bath. Some roller chains are designed to have o-rings built into the space between the outside link plate and the inside roller link plates. Chain manufacturers began to include this feature in 1971 after the application was invented by Joseph Montano while working for Whitney Chain of Hartford, Connecticut. O-rings were included as a way to improve lubrication to the links of power transmission chains, a service that is vitally important to extending their working life. These rubber fixtures form a barrier that holds factory applied lubricating grease inside the pin and bushing wear areas. Further, the rubber o-rings prevent dirt and other contaminants from entering inside the chain linkages, where such particles would otherwise cause significant wear.[citation needed]

There are also many chains that have to operate in dirty conditions, and for size or operational reasons cannot be sealed. Examples include chains on farm equipment, bicycles, and chain saws. These chains will necessarily have relatively high rates of wear, particularly when the operators are prepared to accept more friction, less efficiency, more noise and more frequent replacement as they neglect lubrication and adjustment.

Many oil-based lubricants attract dirt and other particles, eventually forming an CHINAMFG paste that will compound wear on chains. This problem can be circumvented by use of a “dry” PTFE spray, which forms a solid film after application and repels both particles and moisture.

VARIANTS DESIGN

Layout of a roller chain: 1. Outer plate, 2. Inner plate, 3. Pin, 4. Bushing, 5. Roller
If the chain is not being used for a high wear application (for instance if it is just transmitting motion from a hand-operated lever to a control shaft on a machine, or a sliding door on an oven), then 1 of the simpler types of chain may still be used. Conversely, where extra strength but the smooth drive of a smaller pitch is required, the chain may be “siamesed”; instead of just 2 rows of plates on the outer sides of the chain, there may be 3 (“duplex”), 4 (“triplex”), or more rows of plates running parallel, with bushings and rollers between each adjacent pair, and the same number of rows of teeth running in parallel on the sprockets to match. Timing chains on automotive engines, for example, typically have multiple rows of plates called strands.

Roller chain is made in several sizes, the most common American National Standards Institute (ANSI) standards being 40, 50, 60, and 80. The first digit(s) indicate the pitch of the chain in eighths of an inch, with the last digit being 0 for standard chain, 1 for lightweight chain, and 5 for bushed chain with no rollers. Thus, a chain with half-inch pitch would be a #40 while a #160 sprocket would have teeth spaced 2 inches apart, etc. Metric pitches are expressed in sixteenths of an inch; thus a metric #8 chain (08B-1) would be equivalent to an ANSI #40. Most roller chain is made from plain carbon or alloy steel, but stainless steel is used in food processing machinery or other places where lubrication is a problem, and nylon or brass are occasionally seen for the same reason.

Roller chain is ordinarily hooked up using a master link (also known as a connecting link), which typically has 1 pin held by a horseshoe clip rather than friction fit, allowing it to be inserted or removed with simple tools. Chain with a removable link or pin is also known as cottered chain, which allows the length of the chain to be adjusted. Half links (also known as offsets) are available and are used to increase the length of the chain by a single roller. Riveted roller chain has the master link (also known as a connecting link) “riveted” or mashed on the ends. These pins are made to be durable and are not removable.

USE

An example of 2 ‘ghost’ sprockets tensioning a triplex roller chain system
Roller chains are used in low- to mid-speed drives at around 600 to 800 feet per minute; however, at higher speeds, around 2,000 to 3,000 feet per minute, V-belts are normally used due to wear and noise issues.
A bicycle chain is a form of roller chain. Bicycle chains may have a master link, or may require a chain tool for removal and installation. A similar but larger and thus stronger chain is used on most motorcycles although it is sometimes replaced by either a toothed belt or a shaft drive, which offer lower noise level and fewer maintenance requirements.
The great majority of automobile engines use roller chains to drive the camshaft(s). Very high performance engines often use gear drive, and starting in the early 1960s toothed belts were used by some manufacturers.
Chains are also used in forklifts using hydraulic rams as a pulley to raise and lower the carriage; however, these chains are not considered roller chains, but are classified as lift or leaf chains.
Chainsaw cutting chains superficially resemble roller chains but are more closely related to leaf chains. They are driven by projecting drive links which also serve to locate the chain CHINAMFG the bar.

Sea Harrier FA.2 ZA195 front (cold) vector thrust nozzle – the nozzle is rotated by a chain drive from an air motor
A perhaps unusual use of a pair of motorcycle chains is in the Harrier Jump Jet, where a chain drive from an air motor is used to rotate the movable engine nozzles, allowing them to be pointed downwards for hovering flight, or to the rear for normal CHINAMFG flight, a system known as Thrust vectoring.

WEAR

 

The effect of wear on a roller chain is to increase the pitch (spacing of the links), causing the chain to grow longer. Note that this is due to wear at the pivoting pins and bushes, not from actual stretching of the metal (as does happen to some flexible steel components such as the hand-brake cable of a motor vehicle).

With modern chains it is unusual for a chain (other than that of a bicycle) to wear until it breaks, since a worn chain leads to the rapid onset of wear on the teeth of the sprockets, with ultimate failure being the loss of all the teeth on the sprocket. The sprockets (in particular the smaller of the two) suffer a grinding motion that puts a characteristic hook shape into the driven face of the teeth. (This effect is made worse by a chain improperly tensioned, but is unavoidable no matter what care is taken). The worn teeth (and chain) no longer provides smooth transmission of power and this may become evident from the noise, the vibration or (in car engines using a timing chain) the variation in ignition timing seen with a timing light. Both sprockets and chain should be replaced in these cases, since a new chain on worn sprockets will not last long. However, in less severe cases it may be possible to save the larger of the 2 sprockets, since it is always the smaller 1 that suffers the most wear. Only in very light-weight applications such as a bicycle, or in extreme cases of improper tension, will the chain normally jump off the sprockets.

The lengthening due to wear of a chain is calculated by the following formula:

M = the length of a number of links measured

S = the number of links measured

P = Pitch

In industry, it is usual to monitor the movement of the chain tensioner (whether manual or automatic) or the exact length of a drive chain (one rule of thumb is to replace a roller chain which has elongated 3% on an adjustable drive or 1.5% on a fixed-center drive). A simpler method, particularly suitable for the cycle or motorcycle user, is to attempt to pull the chain away from the larger of the 2 sprockets, whilst ensuring the chain is taut. Any significant movement (e.g. making it possible to see through a gap) probably indicates a chain worn up to and beyond the limit. Sprocket damage will result if the problem is ignored. Sprocket wear cancels this effect, and may mask chain wear.

CHAIN STRENGTH

The most common measure of roller chain’s strength is tensile strength. Tensile strength represents how much load a chain can withstand under a one-time load before breaking. Just as important as tensile strength is a chain’s fatigue strength. The critical factors in a chain’s fatigue strength is the quality of steel used to manufacture the chain, the heat treatment of the chain components, the quality of the pitch hole fabrication of the linkplates, and the type of shot plus the intensity of shot peen coverage on the linkplates. Other factors can include the thickness of the linkplates and the design (contour) of the linkplates. The rule of thumb for roller chain operating on a continuous drive is for the chain load to not exceed a mere 1/6 or 1/9 of the chain’s tensile strength, depending on the type of master links used (press-fit vs. slip-fit)[citation needed]. Roller chains operating on a continuous drive beyond these thresholds can and typically do fail prematurely via linkplate fatigue failure.

The standard minimum ultimate strength of the ANSI 29.1 steel chain is 12,500 x (pitch, in inches)2. X-ring and O-Ring chains greatly decrease wear by means of internal lubricants, increasing chain life. The internal lubrication is inserted by means of a vacuum when riveting the chain together.

CHAIN STHangZhouRDS

Standards organizations (such as ANSI and ISO) maintain standards for design, dimensions, and interchangeability of transmission chains. For example, the following Table shows data from ANSI standard B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references[8][9][10] for additional information.

ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25

ASME/ANSI B29.1-2011 Roller Chain Standard Sizes
Size Pitch Maximum Roller Diameter Minimum Ultimate Tensile Strength Measuring Load
25 0.250 in (6.35 mm) 0.130 in (3.30 mm) 780 lb (350 kg) 18 lb (8.2 kg)
35 0.375 in (9.53 mm) 0.200 in (5.08 mm) 1,760 lb (800 kg) 18 lb (8.2 kg)
41 0.500 in (12.70 mm) 0.306 in (7.77 mm) 1,500 lb (680 kg) 18 lb (8.2 kg)
40 0.500 in (12.70 mm) 0.312 in (7.92 mm) 3,125 lb (1,417 kg) 31 lb (14 kg)
50 0.625 in (15.88 mm) 0.400 in (10.16 mm) 4,880 lb (2,210 kg) 49 lb (22 kg)
60 0.750 in (19.05 mm) 0.469 in (11.91 mm) 7,030 lb (3,190 kg) 70 lb (32 kg)
80 1.000 in (25.40 mm) 0.625 in (15.88 mm) 12,500 lb (5,700 kg) 125 lb (57 kg)
100 1.250 in (31.75 mm) 0.750 in (19.05 mm) 19,531 lb (8,859 kg) 195 lb (88 kg)
120 1.500 in (38.10 mm) 0.875 in (22.23 mm) 28,125 lb (12,757 kg) 281 lb (127 kg)
140 1.750 in (44.45 mm) 1.000 in (25.40 mm) 38,280 lb (17,360 kg) 383 lb (174 kg)
160 2.000 in (50.80 mm) 1.125 in (28.58 mm) 50,000 lb (23,000 kg) 500 lb (230 kg)
180 2.250 in (57.15 mm) 1.460 in (37.08 mm) 63,280 lb (28,700 kg) 633 lb (287 kg)
200 2.500 in (63.50 mm) 1.562 in (39.67 mm) 78,175 lb (35,460 kg) 781 lb (354 kg)
240 3.000 in (76.20 mm) 1.875 in (47.63 mm) 112,500 lb (51,000 kg) 1,000 lb (450 kg

For mnemonic purposes, below is another presentation of key dimensions from the same standard, expressed in fractions of an inch (which was part of the thinking behind the choice of preferred numbers in the ANSI standard):

Pitch (inches) Pitch expressed
in eighths
ANSI standard
chain number
Width (inches)
14 28 25 18
38 38 35 316
12 48 41 14
12 48 40 516
58 58 50 38
34 68 60 12
1 88 80 58

Notes:
1. The pitch is the distance between roller centers. The width is the distance between the link plates (i.e. slightly more than the roller width to allow for clearance).
2. The right-hand digit of the standard denotes 0 = normal chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the number of eighths of an inch that make up the pitch.
4. An “H” following the standard number denotes heavyweight chain. A hyphenated number following the standard number denotes double-strand (2), triple-strand (3), and so on. Thus 60H-3 denotes number 60 heavyweight triple-strand chain.
 A typical bicycle chain (for derailleur gears) uses narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not affect the load capacity. The more sprockets at the rear wheel (historically 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are sold according to the number of speeds they are designed to work with, for example, “10 speed chain”. Hub gear or single speed bicycles use 1/2″ x 1/8″ chains, where 1/8″ refers to the maximum thickness of a sprocket that can be used with the chain.

Typically chains with parallel shaped links have an even number of links, with each narrow link followed by a broad one. Chains built up with a uniform type of link, narrow at 1 and broad at the other end, can be made with an odd number of links, which can be an advantage to adapt to a special chainwheel-distance; on the other side such a chain tends to be not so strong.

Roller chains made using ISO standard are sometimes called as isochains.

 

WHY CHOOSE US 

1. Reliable Quality Assurance System
2. Cutting-Edge Computer-Controlled CNC Machines
3. Bespoke Solutions from Highly Experienced Specialists
4. Customization and OEM Available for Specific Application
5. Extensive Inventory of Spare Parts and Accessories
6. Well-Developed CHINAMFG Marketing Network
7. Efficient After-Sale Service System

 

The 219 sets of advanced automatic production equipment provide guarantees for high product quality. The 167 engineers and technicians with senior professional titles can design and develop products to meet the exact demands of customers, and OEM customizations are also available with us. Our sound global service network can provide customers with timely after-sales technical services.

We are not just a manufacturer and supplier, but also an industry consultant. We work pro-actively with you to offer expert advice and product recommendations in order to end up with a most cost effective product available for your specific application. The clients we serve CHINAMFG range from end users to distributors and OEMs. Our OEM replacements can be substituted wherever necessary and suitable for both repair and new assemblies.

 

 

 

 

Standard or Nonstandard: Standard
Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car, Food and Beverage Industry, Motorcycle Parts
Surface Treatment: Polishing
Structure: Roller Chain
Material: Alloy
Type: Short Pitch Chain
Samples:
US$ 0/Meter
1 Meter(Min.Order)

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Request Sample

Customization:
Available

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bush chain

Can a bush chain be used in cleanroom environments?

Yes, bush chains can be used in cleanroom environments depending on the specific requirements and design of the cleanroom. Here are some considerations:

1. Material Selection: The choice of material for the bush chain is crucial in cleanroom applications. Stainless steel or plastic chains are commonly used because they offer excellent corrosion resistance and are easy to clean. These materials also have low particle generation, which is important in maintaining cleanroom standards.

2. Lubrication: In cleanroom environments, lubrication may need to be minimized or eliminated to prevent contamination. Self-lubricating bush chains or dry lubricants can be used to reduce the need for external lubrication, minimizing the risk of particle generation.

3. Design and Construction: The design of the bush chain should minimize the potential for particle accumulation. Smooth surfaces and sealed construction can help prevent the buildup of contaminants. Additionally, the chain should be designed for easy disassembly and cleaning to facilitate regular maintenance.

4. Cleanroom Compatibility: It is essential to verify that the bush chain and any associated components, such as sprockets, meet the cleanroom requirements and standards. They should be made of materials that are compatible with the cleanroom environment and meet any necessary certifications or regulations.

When using a bush chain in a cleanroom environment, proper installation, regular cleaning, and maintenance are essential to ensure optimal performance and prevent any potential contamination. Consulting with experts or suppliers familiar with cleanroom requirements can help in selecting the appropriate bush chain and ensuring compliance with cleanroom standards.

bush chain

How does a bush chain contribute to overall system efficiency?

A bush chain contributes to overall system efficiency in several ways:

1. Power transmission: Bush chains are designed to efficiently transmit power from the driving source to the driven machinery or equipment. They have high tensile strength and can effectively transfer rotational motion, allowing for the efficient transfer of power from the motor or engine to the intended application.

2. Load-bearing capacity: Bush chains are capable of handling heavy loads and are designed to withstand the stresses associated with transmitting power in industrial applications. By efficiently transferring the load, they minimize power losses and reduce the need for additional components or systems.

3. Smooth and reliable operation: Bush chains are constructed with precision-engineered components that work together to provide smooth and reliable operation. They have low friction between the bushings and pins, reducing energy losses and minimizing wear and tear. This results in improved overall system efficiency.

4. Minimal maintenance requirements: Bush chains are designed to operate with minimal maintenance. They have self-lubricating capabilities, reducing the need for frequent lubrication. This not only saves time and resources but also ensures consistent performance and extends the chain’s lifespan.

5. Flexibility and adaptability: Bush chains can be customized and adapted to suit specific application requirements. They are available in various sizes, pitches, and configurations, allowing for easy integration into different systems. This flexibility enhances system efficiency by providing the optimal chain solution for the specific application.

Overall, a properly selected and maintained bush chain contributes to the overall efficiency of a system by minimizing power losses, reducing wear and tear, and providing reliable and smooth operation. It ensures effective power transmission and load-bearing capacity, resulting in improved productivity and reduced downtime.

bush chain

What are the different types of bush chains available?

There are several types of bush chains available, each designed to meet specific application requirements. Here are some common types:

1. Standard Bush Chains: These chains have a simple construction with bushings and rollers. They are commonly used in general industrial applications that require moderate load capacity and speed.

2. Heavy-Duty Bush Chains: These chains are designed for applications that involve high loads, such as heavy machinery or equipment. They have a robust construction with thicker plates and larger diameter bushings to withstand the increased demands.

3. Extended Pitch Bush Chains: These chains have a larger pitch than standard chains, providing more space between each link. They are often used in applications that require conveying large or irregularly shaped objects, such as in material handling or packaging industries.

4. Double-Pitch Bush Chains: These chains have double the pitch of standard chains, allowing for longer spans between sprockets. They are commonly used in applications that require longer conveying distances or lower-speed operation.

5. Stainless Steel Bush Chains: These chains are made from stainless steel material, offering excellent corrosion resistance. They are suitable for applications in corrosive environments or industries with strict hygiene requirements, such as food processing or pharmaceutical manufacturing.

6. Self-Lubricating Bush Chains: These chains incorporate special materials or coatings that provide self-lubrication properties. They eliminate the need for external lubrication and reduce maintenance requirements. Self-lubricating bush chains are ideal for applications where regular lubrication is challenging or impractical.

7. Specialty Bush Chains: There are also specialty bush chains available for specific applications. These may include high-temperature chains, flame-resistant chains, or chains with specialized coatings for specific industries or environments.

When selecting a bush chain, consider the specific requirements of your application, such as load capacity, speed, environmental conditions, and maintenance needs. Consult with a supplier or engineer to determine the most suitable type of bush chain for your application.

China Best Sales Engineering and Construction Machinery Industrial Transmission 140h-2 Heavy Duty Series Duplex Industrial Machinery Roller Chains and Bush Chains for Oil Field  China Best Sales Engineering and Construction Machinery Industrial Transmission 140h-2 Heavy Duty Series Duplex Industrial Machinery Roller Chains and Bush Chains for Oil Field
editor by CX 2023-09-23

China Professional Engineering and Construction Machinery Industrial Chain Supply 16b-1 B Series Short Pitch Precision Simplex Industrial Conveyor Roller Chains and Bush Chains

Product Description

B Series Short pitch Precision Simplex Roller Chains & Bush Chains

 

ISO/DIN
Chain No.
Pitch

P
mm

Roller diameter

d1max
mm

Width between inner plates
b1min
mm
Pin diameter

d2max
mm

Pin length Inner plate depth
h2max
mm
Plate thickness

t/Tmax
mm

Tensile strength

Qmin
kN/lbf

Average tensile strength
Q0
kN
Weight per meter
q
kg/m
Lmax
mm
Lcmax
mm
16B-1 25.400 15.88 17.02 8.28 36.10 37.4 21.00 4.15/3.1 60.0/13636 77.1 2.71

*Straight side plates
 

ROLLER CHAIN

Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles. It consists of a series of short cylindrical rollers held together by side links. It is driven by a toothed wheel called a sprocket. It is a simple, reliable, and efficient means of power transmission.

CONSTRUCTION OF THE CHAIN

Two different sizes of roller chain, showing construction.
There are 2 types of links alternating in the bush roller chain. The first type is inner links, having 2 inner plates held together by 2 sleeves or bushings CZPT which rotate 2 rollers. Inner links alternate with the second type, the outer links, consisting of 2 outer plates held together by pins passing through the bushings of the inner links. The “bushingless” roller chain is similar in operation though not in construction; instead of separate bushings or sleeves holding the inner plates together, the plate has a tube stamped into it protruding from the hole which serves the same purpose. This has the advantage of removing 1 step in assembly of the chain.

The roller chain design reduces friction compared to simpler designs, resulting in higher efficiency and less wear. The original power transmission chain varieties lacked rollers and bushings, with both the inner and outer plates held by pins which directly contacted the sprocket teeth; however this configuration exhibited extremely rapid wear of both the sprocket teeth, and the plates where they pivoted on the pins. This problem was partially solved by the development of bushed chains, with the pins holding the outer plates passing through bushings or sleeves connecting the inner plates. This distributed the wear over a greater area; however the teeth of the sprockets still wore more rapidly than is desirable, from the sliding friction against the bushings. The addition of rollers surrounding the bushing sleeves of the chain and provided rolling contact with the teeth of the sprockets resulting in excellent resistance to wear of both sprockets and chain as well. There is even very low friction, as long as the chain is sufficiently lubricated. Continuous, clean, lubrication of roller chains is of primary importance for efficient operation as well as correct tensioning.

LUBRICATION

Many driving chains (for example, in factory equipment, or driving a camshaft inside an internal combustion engine) operate in clean environments, and thus the wearing surfaces (that is, the pins and bushings) are safe from precipitation and airborne grit, many even in a sealed environment such as an oil bath. Some roller chains are designed to have o-rings built into the space between the outside link plate and the inside roller link plates. Chain manufacturers began to include this feature in 1971 after the application was invented by Joseph Montano while working for Whitney Chain of Hartford, Connecticut. O-rings were included as a way to improve lubrication to the links of power transmission chains, a service that is vitally important to extending their working life. These rubber fixtures form a barrier that holds factory applied lubricating grease inside the pin and bushing wear areas. Further, the rubber o-rings prevent dirt and other contaminants from entering inside the chain linkages, where such particles would otherwise cause significant wear.[citation needed]

There are also many chains that have to operate in dirty conditions, and for size or operational reasons cannot be sealed. Examples include chains on farm equipment, bicycles, and chain saws. These chains will necessarily have relatively high rates of wear, particularly when the operators are prepared to accept more friction, less efficiency, more noise and more frequent replacement as they neglect lubrication and adjustment.

Many oil-based lubricants attract dirt and other particles, eventually forming an CZPT paste that will compound wear on chains. This problem can be circumvented by use of a “dry” PTFE spray, which forms a solid film after application and repels both particles and moisture.

VARIANTS DESIGN

Layout of a roller chain: 1. Outer plate, 2. Inner plate, 3. Pin, 4. Bushing, 5. Roller
If the chain is not being used for a high wear application (for instance if it is just transmitting motion from a hand-operated lever to a control shaft on a machine, or a sliding door on an oven), then 1 of the simpler types of chain may still be used. Conversely, where extra strength but the smooth drive of a smaller pitch is required, the chain may be “siamesed”; instead of just 2 rows of plates on the outer sides of the chain, there may be 3 (“duplex”), 4 (“triplex”), or more rows of plates running parallel, with bushings and rollers between each adjacent pair, and the same number of rows of teeth running in parallel on the sprockets to match. Timing chains on automotive engines, for example, typically have multiple rows of plates called strands.

Roller chain is made in several sizes, the most common American National Standards Institute (ANSI) standards being 40, 50, 60, and 80. The first digit(s) indicate the pitch of the chain in eighths of an inch, with the last digit being 0 for standard chain, 1 for lightweight chain, and 5 for bushed chain with no rollers. Thus, a chain with half-inch pitch would be a #40 while a #160 sprocket would have teeth spaced 2 inches apart, etc. Metric pitches are expressed in sixteenths of an inch; thus a metric #8 chain (08B-1) would be equivalent to an ANSI #40. Most roller chain is made from plain carbon or alloy steel, but stainless steel is used in food processing machinery or other places where lubrication is a problem, and nylon or brass are occasionally seen for the same reason.

Roller chain is ordinarily hooked up using a master link (also known as a connecting link), which typically has 1 pin held by a horseshoe clip rather than friction fit, allowing it to be inserted or removed with simple tools. Chain with a removable link or pin is also known as cottered chain, which allows the length of the chain to be adjusted. Half links (also known as offsets) are available and are used to increase the length of the chain by a single roller. Riveted roller chain has the master link (also known as a connecting link) “riveted” or mashed on the ends. These pins are made to be durable and are not removable.

USE

An example of 2 ‘ghost’ sprockets tensioning a triplex roller chain system
Roller chains are used in low- to mid-speed drives at around 600 to 800 feet per minute; however, at higher speeds, around 2,000 to 3,000 feet per minute, V-belts are normally used due to wear and noise issues.
A bicycle chain is a form of roller chain. Bicycle chains may have a master link, or may require a chain tool for removal and installation. A similar but larger and thus stronger chain is used on most motorcycles although it is sometimes replaced by either a toothed belt or a shaft drive, which offer lower noise level and fewer maintenance requirements.
The great majority of automobile engines use roller chains to drive the camshaft(s). Very high performance engines often use gear drive, and starting in the early 1960s toothed belts were used by some manufacturers.
Chains are also used in forklifts using hydraulic rams as a pulley to raise and lower the carriage; however, these chains are not considered roller chains, but are classified as lift or leaf chains.
Chainsaw cutting chains superficially resemble roller chains but are more closely related to leaf chains. They are driven by projecting drive links which also serve to locate the chain CZPT the bar.

Sea Harrier FA.2 ZA195 front (cold) vector thrust nozzle – the nozzle is rotated by a chain drive from an air motor
A perhaps unusual use of a pair of motorcycle chains is in the Harrier Jump Jet, where a chain drive from an air motor is used to rotate the movable engine nozzles, allowing them to be pointed downwards for hovering flight, or to the rear for normal CZPT flight, a system known as Thrust vectoring.

WEAR

 

The effect of wear on a roller chain is to increase the pitch (spacing of the links), causing the chain to grow longer. Note that this is due to wear at the pivoting pins and bushes, not from actual stretching of the metal (as does happen to some flexible steel components such as the hand-brake cable of a motor vehicle).

With modern chains it is unusual for a chain (other than that of a bicycle) to wear until it breaks, since a worn chain leads to the rapid onset of wear on the teeth of the sprockets, with ultimate failure being the loss of all the teeth on the sprocket. The sprockets (in particular the smaller of the two) suffer a grinding motion that puts a characteristic hook shape into the driven face of the teeth. (This effect is made worse by a chain improperly tensioned, but is unavoidable no matter what care is taken). The worn teeth (and chain) no longer provides smooth transmission of power and this may become evident from the noise, the vibration or (in car engines using a timing chain) the variation in ignition timing seen with a timing light. Both sprockets and chain should be replaced in these cases, since a new chain on worn sprockets will not last long. However, in less severe cases it may be possible to save the larger of the 2 sprockets, since it is always the smaller 1 that suffers the most wear. Only in very light-weight applications such as a bicycle, or in extreme cases of improper tension, will the chain normally jump off the sprockets.

The lengthening due to wear of a chain is calculated by the following formula:

M = the length of a number of links measured

S = the number of links measured

P = Pitch

In industry, it is usual to monitor the movement of the chain tensioner (whether manual or automatic) or the exact length of a drive chain (one rule of thumb is to replace a roller chain which has elongated 3% on an adjustable drive or 1.5% on a fixed-center drive). A simpler method, particularly suitable for the cycle or motorcycle user, is to attempt to pull the chain away from the larger of the 2 sprockets, whilst ensuring the chain is taut. Any significant movement (e.g. making it possible to see through a gap) probably indicates a chain worn up to and beyond the limit. Sprocket damage will result if the problem is ignored. Sprocket wear cancels this effect, and may mask chain wear.

CHAIN STRENGTH

The most common measure of roller chain’s strength is tensile strength. Tensile strength represents how much load a chain can withstand under a one-time load before breaking. Just as important as tensile strength is a chain’s fatigue strength. The critical factors in a chain’s fatigue strength is the quality of steel used to manufacture the chain, the heat treatment of the chain components, the quality of the pitch hole fabrication of the linkplates, and the type of shot plus the intensity of shot peen coverage on the linkplates. Other factors can include the thickness of the linkplates and the design (contour) of the linkplates. The rule of thumb for roller chain operating on a continuous drive is for the chain load to not exceed a mere 1/6 or 1/9 of the chain’s tensile strength, depending on the type of master links used (press-fit vs. slip-fit)[citation needed]. Roller chains operating on a continuous drive beyond these thresholds can and typically do fail prematurely via linkplate fatigue failure.

The standard minimum ultimate strength of the ANSI 29.1 steel chain is 12,500 x (pitch, in inches)2. X-ring and O-Ring chains greatly decrease wear by means of internal lubricants, increasing chain life. The internal lubrication is inserted by means of a vacuum when riveting the chain together.

CHAIN STHangZhouRDS

Standards organizations (such as ANSI and ISO) maintain standards for design, dimensions, and interchangeability of transmission chains. For example, the following Table shows data from ANSI standard B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references[8][9][10] for additional information.

ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25

ASME/ANSI B29.1-2011 Roller Chain Standard Sizes
Size Pitch Maximum Roller Diameter Minimum Ultimate Tensile Strength Measuring Load
25 0.250 in (6.35 mm) 0.130 in (3.30 mm) 780 lb (350 kg) 18 lb (8.2 kg)
35 0.375 in (9.53 mm) 0.200 in (5.08 mm) 1,760 lb (800 kg) 18 lb (8.2 kg)
41 0.500 in (12.70 mm) 0.306 in (7.77 mm) 1,500 lb (680 kg) 18 lb (8.2 kg)
40 0.500 in (12.70 mm) 0.312 in (7.92 mm) 3,125 lb (1,417 kg) 31 lb (14 kg)
50 0.625 in (15.88 mm) 0.400 in (10.16 mm) 4,880 lb (2,210 kg) 49 lb (22 kg)
60 0.750 in (19.05 mm) 0.469 in (11.91 mm) 7,030 lb (3,190 kg) 70 lb (32 kg)
80 1.000 in (25.40 mm) 0.625 in (15.88 mm) 12,500 lb (5,700 kg) 125 lb (57 kg)
100 1.250 in (31.75 mm) 0.750 in (19.05 mm) 19,531 lb (8,859 kg) 195 lb (88 kg)
120 1.500 in (38.10 mm) 0.875 in (22.23 mm) 28,125 lb (12,757 kg) 281 lb (127 kg)
140 1.750 in (44.45 mm) 1.000 in (25.40 mm) 38,280 lb (17,360 kg) 383 lb (174 kg)
160 2.000 in (50.80 mm) 1.125 in (28.58 mm) 50,000 lb (23,000 kg) 500 lb (230 kg)
180 2.250 in (57.15 mm) 1.460 in (37.08 mm) 63,280 lb (28,700 kg) 633 lb (287 kg)
200 2.500 in (63.50 mm) 1.562 in (39.67 mm) 78,175 lb (35,460 kg) 781 lb (354 kg)
240 3.000 in (76.20 mm) 1.875 in (47.63 mm) 112,500 lb (51,000 kg) 1,000 lb (450 kg

For mnemonic purposes, below is another presentation of key dimensions from the same standard, expressed in fractions of an inch (which was part of the thinking behind the choice of preferred numbers in the ANSI standard):

Pitch (inches) Pitch expressed
in eighths
ANSI standard
chain number
Width (inches)
14 28 25 18
38 38 35 316
12 48 41 14
12 48 40 516
58 58 50 38
34 68 60 12
1 88 80 58

Notes:
1. The pitch is the distance between roller centers. The width is the distance between the link plates (i.e. slightly more than the roller width to allow for clearance).
2. The right-hand digit of the standard denotes 0 = normal chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the number of eighths of an inch that make up the pitch.
4. An “H” following the standard number denotes heavyweight chain. A hyphenated number following the standard number denotes double-strand (2), triple-strand (3), and so on. Thus 60H-3 denotes number 60 heavyweight triple-strand chain.
 A typical bicycle chain (for derailleur gears) uses narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not affect the load capacity. The more sprockets at the rear wheel (historically 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are sold according to the number of speeds they are designed to work with, for example, “10 speed chain”. Hub gear or single speed bicycles use 1/2″ x 1/8″ chains, where 1/8″ refers to the maximum thickness of a sprocket that can be used with the chain.

Typically chains with parallel shaped links have an even number of links, with each narrow link followed by a broad one. Chains built up with a uniform type of link, narrow at 1 and broad at the other end, can be made with an odd number of links, which can be an advantage to adapt to a special chainwheel-distance; on the other side such a chain tends to be not so strong.

Roller chains made using ISO standard are sometimes called as isochains.

 

WHY CHOOSE US 

1. Reliable Quality Assurance System
2. Cutting-Edge Computer-Controlled CNC Machines
3. Bespoke Solutions from Highly Experienced Specialists
4. Customization and OEM Available for Specific Application
5. Extensive Inventory of Spare Parts and Accessories
6. Well-Developed CZPT Marketing Network
7. Efficient After-Sale Service System

 

The 219 sets of advanced automatic production equipment provide guarantees for high product quality. The 167 engineers and technicians with senior professional titles can design and develop products to meet the exact demands of customers, and OEM customizations are also available with us. Our sound global service network can provide customers with timely after-sales technical services.

We are not just a manufacturer and supplier, but also an industry consultant. We work pro-actively with you to offer expert advice and product recommendations in order to end up with a most cost effective product available for your specific application. The clients we serve CZPT range from end users to distributors and OEMs. Our OEM replacements can be substituted wherever necessary and suitable for both repair and new assemblies.

 

 

 

 

Usage: Transmission Chain, Drag Chain, Conveyor Chain, Dedicated Special Chain
Material: Alloy
Surface Treatment: Polishing
Feature: Heat Resistant
Chain Size: Roller Chains
Structure: Roller Chain
Samples:
US$ 0/Meter
1 Meter(Min.Order)

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Customization:
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bush chain

How do you calculate the required length of a bush chain?

The length of a bush chain is determined by the distance between the sprockets or pulleys it needs to span. To calculate the required length, you can follow these steps:

1. Measure the distance between the centers of the sprockets or pulleys where the bush chain will be installed. This is known as the “center distance.”

2. Determine the number of chain links required. The number of links depends on the pitch of the bush chain, which is the distance between adjacent pins. The pitch is typically specified by the chain manufacturer.

3. Divide the center distance by the pitch of the chain to calculate the number of chain links needed. Round up to the nearest whole number to ensure proper engagement of the chain with the sprockets.

4. Multiply the number of chain links by the pitch to obtain the actual length of the chain required.

Keep in mind that the calculated chain length is a starting point and may need to be adjusted during installation. It is recommended to provide some additional slack in the chain to accommodate any tensioning or adjustment requirements.

It’s important to refer to the manufacturer’s specifications and guidelines for the specific bush chain you are using, as different chain types and designs may have variations in calculating the required length.

bush chain

What are the benefits of using a self-lubricating bush chain?

Using a self-lubricating bush chain offers several advantages in industrial applications:

1. Reduced maintenance: Self-lubricating bush chains are designed to minimize the need for manual lubrication. They incorporate special materials or coatings that provide built-in lubrication, reducing the frequency of lubrication maintenance tasks.

2. Increased operational efficiency: The self-lubricating feature ensures consistent and proper lubrication of the bush chain, which helps to reduce friction and wear. This results in improved efficiency and smoother operation of the chain, reducing energy consumption and increasing overall system performance.

3. Extended chain life: Proper lubrication is essential for preserving the integrity and longevity of a bush chain. Self-lubricating bush chains offer superior lubrication capabilities, reducing friction and wear on the chain components. This leads to longer chain life, reducing the frequency of chain replacement and associated downtime.

4. Contamination resistance: Self-lubricating bush chains often have enhanced resistance to contaminants such as dust, dirt, and moisture. The lubrication materials or coatings used in these chains help repel or resist the entry of contaminants, reducing the risk of chain malfunction or premature failure.

5. Cost savings: By eliminating or reducing the need for manual lubrication, self-lubricating bush chains can result in cost savings associated with labor, lubrication materials, and maintenance downtime. The extended chain life also contributes to cost savings by reducing the frequency of chain replacements.

6. Environmental friendliness: Self-lubricating bush chains often use lubrication materials that are environmentally friendly, such as dry film lubricants or solid lubricants. This reduces the potential for lubricant leakage or contamination of the surrounding environment.

Overall, the use of self-lubricating bush chains provides significant benefits in terms of reduced maintenance, improved efficiency, extended chain life, contamination resistance, cost savings, and environmental considerations. These advantages make self-lubricating bush chains a preferred choice in many industrial applications where reliable and low-maintenance chain operation is essential.

bush chain

How does a bush chain differ from other types of chains?

A bush chain, also known as a bush roller chain or bushing chain, differs from other types of chains in its construction and design. Here are the key ways in which a bush chain differs:

1. Bushing Design: The main distinguishing feature of a bush chain is the presence of bushings or sleeves between the inner and outer links. These bushings serve as bearings that reduce friction and wear between the chain components, resulting in smoother operation and increased chain life.

2. Simplex, Duplex, and Triplex Configurations: Bush chains are available in different configurations, including simplex, duplex, and triplex. These configurations refer to the number of strands of chain running parallel to each other. This allows for increased load capacity and higher torque transmission in the chain system.

3. Link Plate Design: The link plates in a bush chain are typically thicker and heavier compared to other types of chains. This design provides enhanced strength and durability, allowing the chain to withstand heavy loads and resist elongation under tension.

4. Precision Bushing Fit: The bushings in a bush chain have a precise fit with the pins, which ensures proper alignment and smooth rotation. This reduces friction, minimizes wear, and improves the overall efficiency of the chain system.

5. Lubrication Requirements: Bush chains usually require regular lubrication to maintain optimal performance and reduce friction between the components. Lubrication helps prevent wear and corrosion, ensuring the longevity of the chain.

6. Wide Range of Applications: Bush chains are versatile and find applications in various industrial settings, including machinery, automotive systems, agriculture, material handling, mining, and more. Their robust construction and ability to handle high loads make them suitable for demanding applications.

Overall, the inclusion of bushings, the configuration options, and the design characteristics of bush chains distinguish them from other types of chains. Their unique features make them ideal for applications that require durability, high load capacity, and reduced friction for reliable power transmission.

China Professional Engineering and Construction Machinery Industrial Chain Supply 16b-1 B Series Short Pitch Precision Simplex Industrial Conveyor Roller Chains and Bush Chains  China Professional Engineering and Construction Machinery Industrial Chain Supply 16b-1 B Series Short Pitch Precision Simplex Industrial Conveyor Roller Chains and Bush Chains
editor by CX 2023-08-31

China Hot selling Engineering and Construction Machinery Industrial 200-3 a Series Short Pitch Precision Carbon Steel Triplex Transmission Roller Chains and Bush Chains

Product Description

A Series Short Pitch Precision Triplex Roller Chains & Bush Chains

 

 

ISO/ANSI/ DIN
Chain No.
Chain No. Pitch
P
mm
Roller diameter

d1max
mm

Width between inner plates
b1min
mm
Pin diameter

d2max
mm

Pin length Inner plate depth
h2max
mm
Plate thickness
Tmax
mm
  
Transverse pitch

Pt
mm

Tensile strength

Qmin
kN/lbf

Average tensile strength
Q0
kN
Weigth per meter
q
kg/m
Lmax
mm
Lcmax
mm
200-3 40A-3 63.500 39.68 37.85 19.85 223.5 230.4 60.00 8.00 71.55 1061.4/241227 1400.4 49.03

*Bush chain: d1 in the table indicates the external diameter of the bush

 

ROLLER CHAIN

Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles. It consists of a series of short cylindrical rollers held together by side links. It is driven by a toothed wheel called a sprocket. It is a simple, reliable, and efficient means of power transmission.

CONSTRUCTION OF THE CHAIN

Two different sizes of roller chain, showing construction.
There are 2 types of links alternating in the bush roller chain. The first type is inner links, having 2 inner plates held together by 2 sleeves or bushings CZPT which rotate 2 rollers. Inner links alternate with the second type, the outer links, consisting of 2 outer plates held together by pins passing through the bushings of the inner links. The “bushingless” roller chain is similar in operation though not in construction; instead of separate bushings or sleeves holding the inner plates together, the plate has a tube stamped into it protruding from the hole which serves the same purpose. This has the advantage of removing 1 step in assembly of the chain.

The roller chain design reduces friction compared to simpler designs, resulting in higher efficiency and less wear. The original power transmission chain varieties lacked rollers and bushings, with both the inner and outer plates held by pins which directly contacted the sprocket teeth; however this configuration exhibited extremely rapid wear of both the sprocket teeth, and the plates where they pivoted on the pins. This problem was partially solved by the development of bushed chains, with the pins holding the outer plates passing through bushings or sleeves connecting the inner plates. This distributed the wear over a greater area; however the teeth of the sprockets still wore more rapidly than is desirable, from the sliding friction against the bushings. The addition of rollers surrounding the bushing sleeves of the chain and provided rolling contact with the teeth of the sprockets resulting in excellent resistance to wear of both sprockets and chain as well. There is even very low friction, as long as the chain is sufficiently lubricated. Continuous, clean, lubrication of roller chains is of primary importance for efficient operation as well as correct tensioning.

LUBRICATION

Many driving chains (for example, in factory equipment, or driving a camshaft inside an internal combustion engine) operate in clean environments, and thus the wearing surfaces (that is, the pins and bushings) are safe from precipitation and airborne grit, many even in a sealed environment such as an oil bath. Some roller chains are designed to have o-rings built into the space between the outside link plate and the inside roller link plates. Chain manufacturers began to include this feature in 1971 after the application was invented by Joseph Montano while working for Whitney Chain of Hartford, Connecticut. O-rings were included as a way to improve lubrication to the links of power transmission chains, a service that is vitally important to extending their working life. These rubber fixtures form a barrier that holds factory applied lubricating grease inside the pin and bushing wear areas. Further, the rubber o-rings prevent dirt and other contaminants from entering inside the chain linkages, where such particles would otherwise cause significant wear.[citation needed]

There are also many chains that have to operate in dirty conditions, and for size or operational reasons cannot be sealed. Examples include chains on farm equipment, bicycles, and chain saws. These chains will necessarily have relatively high rates of wear, particularly when the operators are prepared to accept more friction, less efficiency, more noise and more frequent replacement as they neglect lubrication and adjustment.

Many oil-based lubricants attract dirt and other particles, eventually forming an CZPT paste that will compound wear on chains. This problem can be circumvented by use of a “dry” PTFE spray, which forms a solid film after application and repels both particles and moisture.

VARIANTS DESIGN

Layout of a roller chain: 1. Outer plate, 2. Inner plate, 3. Pin, 4. Bushing, 5. Roller
If the chain is not being used for a high wear application (for instance if it is just transmitting motion from a hand-operated lever to a control shaft on a machine, or a sliding door on an oven), then 1 of the simpler types of chain may still be used. Conversely, where extra strength but the smooth drive of a smaller pitch is required, the chain may be “siamesed”; instead of just 2 rows of plates on the outer sides of the chain, there may be 3 (“duplex”), 4 (“triplex”), or more rows of plates running parallel, with bushings and rollers between each adjacent pair, and the same number of rows of teeth running in parallel on the sprockets to match. Timing chains on automotive engines, for example, typically have multiple rows of plates called strands.

Roller chain is made in several sizes, the most common American National Standards Institute (ANSI) standards being 40, 50, 60, and 80. The first digit(s) indicate the pitch of the chain in eighths of an inch, with the last digit being 0 for standard chain, 1 for lightweight chain, and 5 for bushed chain with no rollers. Thus, a chain with half-inch pitch would be a #40 while a #160 sprocket would have teeth spaced 2 inches apart, etc. Metric pitches are expressed in sixteenths of an inch; thus a metric #8 chain (08B-1) would be equivalent to an ANSI #40. Most roller chain is made from plain carbon or alloy steel, but stainless steel is used in food processing machinery or other places where lubrication is a problem, and nylon or brass are occasionally seen for the same reason.

Roller chain is ordinarily hooked up using a master link (also known as a connecting link), which typically has 1 pin held by a horseshoe clip rather than friction fit, allowing it to be inserted or removed with simple tools. Chain with a removable link or pin is also known as cottered chain, which allows the length of the chain to be adjusted. Half links (also known as offsets) are available and are used to increase the length of the chain by a single roller. Riveted roller chain has the master link (also known as a connecting link) “riveted” or mashed on the ends. These pins are made to be durable and are not removable.

USE

An example of 2 ‘ghost’ sprockets tensioning a triplex roller chain system
Roller chains are used in low- to mid-speed drives at around 600 to 800 feet per minute; however, at higher speeds, around 2,000 to 3,000 feet per minute, V-belts are normally used due to wear and noise issues.
A bicycle chain is a form of roller chain. Bicycle chains may have a master link, or may require a chain tool for removal and installation. A similar but larger and thus stronger chain is used on most motorcycles although it is sometimes replaced by either a toothed belt or a shaft drive, which offer lower noise level and fewer maintenance requirements.
The great majority of automobile engines use roller chains to drive the camshaft(s). Very high performance engines often use gear drive, and starting in the early 1960s toothed belts were used by some manufacturers.
Chains are also used in forklifts using hydraulic rams as a pulley to raise and lower the carriage; however, these chains are not considered roller chains, but are classified as lift or leaf chains.
Chainsaw cutting chains superficially resemble roller chains but are more closely related to leaf chains. They are driven by projecting drive links which also serve to locate the chain CZPT the bar.

Sea Harrier FA.2 ZA195 front (cold) vector thrust nozzle – the nozzle is rotated by a chain drive from an air motor
A perhaps unusual use of a pair of motorcycle chains is in the Harrier Jump Jet, where a chain drive from an air motor is used to rotate the movable engine nozzles, allowing them to be pointed downwards for hovering flight, or to the rear for normal CZPT flight, a system known as Thrust vectoring.

WEAR

 

The effect of wear on a roller chain is to increase the pitch (spacing of the links), causing the chain to grow longer. Note that this is due to wear at the pivoting pins and bushes, not from actual stretching of the metal (as does happen to some flexible steel components such as the hand-brake cable of a motor vehicle).

With modern chains it is unusual for a chain (other than that of a bicycle) to wear until it breaks, since a worn chain leads to the rapid onset of wear on the teeth of the sprockets, with ultimate failure being the loss of all the teeth on the sprocket. The sprockets (in particular the smaller of the two) suffer a grinding motion that puts a characteristic hook shape into the driven face of the teeth. (This effect is made worse by a chain improperly tensioned, but is unavoidable no matter what care is taken). The worn teeth (and chain) no longer provides smooth transmission of power and this may become evident from the noise, the vibration or (in car engines using a timing chain) the variation in ignition timing seen with a timing light. Both sprockets and chain should be replaced in these cases, since a new chain on worn sprockets will not last long. However, in less severe cases it may be possible to save the larger of the 2 sprockets, since it is always the smaller 1 that suffers the most wear. Only in very light-weight applications such as a bicycle, or in extreme cases of improper tension, will the chain normally jump off the sprockets.

The lengthening due to wear of a chain is calculated by the following formula:

M = the length of a number of links measured

S = the number of links measured

P = Pitch

In industry, it is usual to monitor the movement of the chain tensioner (whether manual or automatic) or the exact length of a drive chain (one rule of thumb is to replace a roller chain which has elongated 3% on an adjustable drive or 1.5% on a fixed-center drive). A simpler method, particularly suitable for the cycle or motorcycle user, is to attempt to pull the chain away from the larger of the 2 sprockets, whilst ensuring the chain is taut. Any significant movement (e.g. making it possible to see through a gap) probably indicates a chain worn up to and beyond the limit. Sprocket damage will result if the problem is ignored. Sprocket wear cancels this effect, and may mask chain wear.

CHAIN STRENGTH

The most common measure of roller chain’s strength is tensile strength. Tensile strength represents how much load a chain can withstand under a one-time load before breaking. Just as important as tensile strength is a chain’s fatigue strength. The critical factors in a chain’s fatigue strength is the quality of steel used to manufacture the chain, the heat treatment of the chain components, the quality of the pitch hole fabrication of the linkplates, and the type of shot plus the intensity of shot peen coverage on the linkplates. Other factors can include the thickness of the linkplates and the design (contour) of the linkplates. The rule of thumb for roller chain operating on a continuous drive is for the chain load to not exceed a mere 1/6 or 1/9 of the chain’s tensile strength, depending on the type of master links used (press-fit vs. slip-fit)[citation needed]. Roller chains operating on a continuous drive beyond these thresholds can and typically do fail prematurely via linkplate fatigue failure.

The standard minimum ultimate strength of the ANSI 29.1 steel chain is 12,500 x (pitch, in inches)2. X-ring and O-Ring chains greatly decrease wear by means of internal lubricants, increasing chain life. The internal lubrication is inserted by means of a vacuum when riveting the chain together.

CHAIN STHangZhouRDS

Standards organizations (such as ANSI and ISO) maintain standards for design, dimensions, and interchangeability of transmission chains. For example, the following Table shows data from ANSI standard B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references[8][9][10] for additional information.

ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25

ASME/ANSI B29.1-2011 Roller Chain Standard Sizes
Size Pitch Maximum Roller Diameter Minimum Ultimate Tensile Strength Measuring Load
25 0.250 in (6.35 mm) 0.130 in (3.30 mm) 780 lb (350 kg) 18 lb (8.2 kg)
35 0.375 in (9.53 mm) 0.200 in (5.08 mm) 1,760 lb (800 kg) 18 lb (8.2 kg)
41 0.500 in (12.70 mm) 0.306 in (7.77 mm) 1,500 lb (680 kg) 18 lb (8.2 kg)
40 0.500 in (12.70 mm) 0.312 in (7.92 mm) 3,125 lb (1,417 kg) 31 lb (14 kg)
50 0.625 in (15.88 mm) 0.400 in (10.16 mm) 4,880 lb (2,210 kg) 49 lb (22 kg)
60 0.750 in (19.05 mm) 0.469 in (11.91 mm) 7,030 lb (3,190 kg) 70 lb (32 kg)
80 1.000 in (25.40 mm) 0.625 in (15.88 mm) 12,500 lb (5,700 kg) 125 lb (57 kg)
100 1.250 in (31.75 mm) 0.750 in (19.05 mm) 19,531 lb (8,859 kg) 195 lb (88 kg)
120 1.500 in (38.10 mm) 0.875 in (22.23 mm) 28,125 lb (12,757 kg) 281 lb (127 kg)
140 1.750 in (44.45 mm) 1.000 in (25.40 mm) 38,280 lb (17,360 kg) 383 lb (174 kg)
160 2.000 in (50.80 mm) 1.125 in (28.58 mm) 50,000 lb (23,000 kg) 500 lb (230 kg)
180 2.250 in (57.15 mm) 1.460 in (37.08 mm) 63,280 lb (28,700 kg) 633 lb (287 kg)
200 2.500 in (63.50 mm) 1.562 in (39.67 mm) 78,175 lb (35,460 kg) 781 lb (354 kg)
240 3.000 in (76.20 mm) 1.875 in (47.63 mm) 112,500 lb (51,000 kg) 1,000 lb (450 kg

For mnemonic purposes, below is another presentation of key dimensions from the same standard, expressed in fractions of an inch (which was part of the thinking behind the choice of preferred numbers in the ANSI standard):

Pitch (inches) Pitch expressed
in eighths
ANSI standard
chain number
Width (inches)
14 28 25 18
38 38 35 316
12 48 41 14
12 48 40 516
58 58 50 38
34 68 60 12
1 88 80 58

Notes:
1. The pitch is the distance between roller centers. The width is the distance between the link plates (i.e. slightly more than the roller width to allow for clearance).
2. The right-hand digit of the standard denotes 0 = normal chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the number of eighths of an inch that make up the pitch.
4. An “H” following the standard number denotes heavyweight chain. A hyphenated number following the standard number denotes double-strand (2), triple-strand (3), and so on. Thus 60H-3 denotes number 60 heavyweight triple-strand chain.
 A typical bicycle chain (for derailleur gears) uses narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not affect the load capacity. The more sprockets at the rear wheel (historically 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are sold according to the number of speeds they are designed to work with, for example, “10 speed chain”. Hub gear or single speed bicycles use 1/2″ x 1/8″ chains, where 1/8″ refers to the maximum thickness of a sprocket that can be used with the chain.

Typically chains with parallel shaped links have an even number of links, with each narrow link followed by a broad one. Chains built up with a uniform type of link, narrow at 1 and broad at the other end, can be made with an odd number of links, which can be an advantage to adapt to a special chainwheel-distance; on the other side such a chain tends to be not so strong.

Roller chains made using ISO standard are sometimes called as isochains.

 

WHY CHOOSE US 

1. Reliable Quality Assurance System
2. Cutting-Edge Computer-Controlled CNC Machines
3. Bespoke Solutions from Highly Experienced Specialists
4. Customization and OEM Available for Specific Application
5. Extensive Inventory of Spare Parts and Accessories
6. Well-Developed CZPT Marketing Network
7. Efficient After-Sale Service System

 

The 219 sets of advanced automatic production equipment provide guarantees for high product quality. The 167 engineers and technicians with senior professional titles can design and develop products to meet the exact demands of customers, and OEM customizations are also available with us. Our sound global service network can provide customers with timely after-sales technical services.

We are not just a manufacturer and supplier, but also an industry consultant. We work pro-actively with you to offer expert advice and product recommendations in order to end up with a most cost effective product available for your specific application. The clients we serve CZPT range from end users to distributors and OEMs. Our OEM replacements can be substituted wherever necessary and suitable for both repair and new assemblies.

 

Shipping Cost:

Estimated freight per unit.



To be negotiated
Standard or Nonstandard: Standard
Application: Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car, Food and Beverage Industry, Motorcycle Parts
Surface Treatment: Polishing
Samples:
US$ 3/Meter
1 Meter(Min.Order)

|

Order Sample

Customization:
Available

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Customized Request

bush chain

Can a bush chain be used in high-temperature applications?

Yes, bush chains can be designed and manufactured to withstand high-temperature environments. However, the specific temperature range in which a bush chain can operate depends on several factors, including the materials used, lubrication, and the design of the chain.

When considering the use of a bush chain in high-temperature applications, it is important to consider the following:

1. Material selection: Choose materials that can withstand the elevated temperatures without significant degradation. Heat-resistant alloys or specially treated materials with high-temperature resistance are commonly used in bush chain construction.

2. Lubrication: Proper lubrication is critical in high-temperature applications to reduce friction and prevent premature wear. Select lubricants specifically formulated for high-temperature environments. These lubricants should have a higher viscosity index and thermal stability to maintain their effectiveness at elevated temperatures.

3. Design considerations: The design of the bush chain should account for the thermal expansion and contraction that occurs at high temperatures. Adequate clearance should be provided to accommodate the thermal expansion of the chain components.

4. Heat dissipation: Ensure proper heat dissipation from the chain by allowing sufficient airflow or implementing cooling mechanisms in the system. This helps to prevent excessive heat buildup and potential damage to the chain.

5. Temperature limits: Consult the manufacturer’s specifications and guidelines to determine the maximum temperature limit for the bush chain. Operating the chain within its temperature limits ensures its reliability and longevity.

It is important to note that the performance and lifespan of a bush chain can be affected by prolonged exposure to high temperatures. Continuous monitoring and regular inspections are recommended to ensure the chain’s integrity and identify any signs of wear or damage that may be accelerated by the high-temperature environment.

bush chain

How do you ensure proper tensioning and alignment of a bush chain?

Proper tensioning and alignment of a bush chain are crucial for its optimal performance and longevity. Here are the steps to ensure proper tensioning and alignment:

1. Tensioning:

– Consult the manufacturer’s guidelines: Refer to the manufacturer’s specifications or guidelines for the recommended tensioning method and tension values specific to the bush chain you are using.

– Check the sag: Measure the sag of the chain between two sprockets. The sag should be within the recommended range provided by the manufacturer. Adjust the tension as necessary to achieve the proper sag.

– Use a tensioning device: Depending on the application, you may use a tensioning device such as a tensioner or an idler sprocket to achieve the desired tension. These devices help maintain the tension over time as the chain wears.

2. Alignment:

– Visual inspection: Visually inspect the alignment of the chain with the sprockets. Ensure that the chain is properly seated on the sprocket teeth and running parallel to the sprocket shaft.

– Sprocket alignment: Check the alignment of the sprockets themselves. They should be aligned with each other and positioned correctly on their respective shafts.

– Adjustment: If misalignment is detected, make the necessary adjustments to align the chain and sprockets. This may involve repositioning the sprockets or adjusting the tensioning devices.

3. Regular inspection and maintenance:

– Periodically check the tension and alignment of the bush chain during routine maintenance. This ensures that any changes or deviations can be detected and corrected promptly.

– Monitor wear and elongation: Over time, bush chains may experience wear and elongation. Regularly measure the chain length or inspect for signs of elongation to determine if chain replacement or adjustment is necessary.

Proper tensioning and alignment of a bush chain optimize its performance, minimize wear, and reduce the risk of premature failure. Following the manufacturer’s guidelines and performing regular inspections and maintenance will help ensure the proper tensioning and alignment of the bush chain in your application.

bush chain

What are the main components of a bush chain?

A bush chain consists of several key components that work together to enable efficient power transmission. The main components of a bush chain include:

1. Bushings: Bushings are cylindrical components with a hollow bore that fit into the chain links. They provide a low-friction interface between the chain pins and the link plates, allowing smooth rotation and reducing wear.

2. Pins: Pins are cylindrical metal rods that connect the inner plates and outer plates of the chain links. They pass through the bushings and provide the rotational movement of the chain. The pins are hardened and precisely machined to withstand the loads and provide durability.

3. Link Plates: Link plates are flat metal plates that are connected by the pins. They form the main structure of the chain and transmit the tensile forces. The link plates are typically made of high-strength steel and are designed to withstand the applied loads.

4. Rollers: Some bush chains feature rollers that are located between the link plates and the bushings. These rollers allow smoother engagement with sprockets or other mating components, reducing friction and enhancing the chain’s performance. Rollers also help to maintain proper chain tension.

5. Retaining Clips or Rivets: Retaining clips or rivets are used to secure the pins in place and prevent them from rotating within the link plates. They ensure the integrity of the chain assembly and maintain the proper alignment of the components.

6. Lubrication: Lubrication is crucial for the proper functioning and longevity of a bush chain. It helps to reduce friction, minimize wear, and prevent corrosion. Lubrication can be applied through various methods, such as oil bath, oil drip, or periodic lubrication.

These components work together to provide reliable power transmission in bush chain systems. The precise design and construction of each component contribute to the overall strength, durability, and efficiency of the chain.

China Hot selling Engineering and Construction Machinery Industrial 200-3 a Series Short Pitch Precision Carbon Steel Triplex Transmission Roller Chains and Bush Chains  China Hot selling Engineering and Construction Machinery Industrial 200-3 a Series Short Pitch Precision Carbon Steel Triplex Transmission Roller Chains and Bush Chains
editor by CX 2023-08-29

China Standard 40b-1 B Series Industrial Transmission Gear Reducer Conveyor Parts Short Pitch Precision Simplex Roller Chains and Bush Chains

Product Description

B Series Short pitch Precision Simplex Roller Chains & Bush Chains

 

ISO/DIN
Chain No.
Pitch

P
mm

Roller diameter

d1max
mm

Width between inner plates
b1min
mm
Pin diameter

d2max
mm

Pin length Inner plate depth
h2max
mm
Plate thickness

t/Tmax
mm

Tensile strength

Qmin
kN/lbf

Average tensile strength
Q0
kN
Weight per meter
q
kg/m
Lmax
mm
Lcmax
mm
40B-1 63.500 39.37 38.10 22.89 82.20 89.2 52.96 8.50/8.0 355.0/80682 394.0 16.35

*Straight side plates

ROLLER CHAIN

Roller chain or bush roller chain is the type of chain drive most commonly used for transmission of mechanical power on many kinds of domestic, industrial and agricultural machinery, including conveyors, wire- and tube-drawing machines, printing presses, cars, motorcycles, and bicycles. It consists of a series of short cylindrical rollers held together by side links. It is driven by a toothed wheel called a sprocket. It is a simple, reliable, and efficient means of power transmission.

CONSTRUCTION OF THE CHAIN

Two different sizes of roller chain, showing construction.
There are 2 types of links alternating in the bush roller chain. The first type is inner links, having 2 inner plates held together by 2 sleeves or bushings CZPT which rotate 2 rollers. Inner links alternate with the second type, the outer links, consisting of 2 outer plates held together by pins passing through the bushings of the inner links. The “bushingless” roller chain is similar in operation though not in construction; instead of separate bushings or sleeves holding the inner plates together, the plate has a tube stamped into it protruding from the hole which serves the same purpose. This has the advantage of removing 1 step in assembly of the chain.

The roller chain design reduces friction compared to simpler designs, resulting in higher efficiency and less wear. The original power transmission chain varieties lacked rollers and bushings, with both the inner and outer plates held by pins which directly contacted the sprocket teeth; however this configuration exhibited extremely rapid wear of both the sprocket teeth, and the plates where they pivoted on the pins. This problem was partially solved by the development of bushed chains, with the pins holding the outer plates passing through bushings or sleeves connecting the inner plates. This distributed the wear over a greater area; however the teeth of the sprockets still wore more rapidly than is desirable, from the sliding friction against the bushings. The addition of rollers surrounding the bushing sleeves of the chain and provided rolling contact with the teeth of the sprockets resulting in excellent resistance to wear of both sprockets and chain as well. There is even very low friction, as long as the chain is sufficiently lubricated. Continuous, clean, lubrication of roller chains is of primary importance for efficient operation as well as correct tensioning.

LUBRICATION

Many driving chains (for example, in factory equipment, or driving a camshaft inside an internal combustion engine) operate in clean environments, and thus the wearing surfaces (that is, the pins and bushings) are safe from precipitation and airborne grit, many even in a sealed environment such as an oil bath. Some roller chains are designed to have o-rings built into the space between the outside link plate and the inside roller link plates. Chain manufacturers began to include this feature in 1971 after the application was invented by Joseph Montano while working for Whitney Chain of Hartford, Connecticut. O-rings were included as a way to improve lubrication to the links of power transmission chains, a service that is vitally important to extending their working life. These rubber fixtures form a barrier that holds factory applied lubricating grease inside the pin and bushing wear areas. Further, the rubber o-rings prevent dirt and other contaminants from entering inside the chain linkages, where such particles would otherwise cause significant wear.[citation needed]

There are also many chains that have to operate in dirty conditions, and for size or operational reasons cannot be sealed. Examples include chains on farm equipment, bicycles, and chain saws. These chains will necessarily have relatively high rates of wear, particularly when the operators are prepared to accept more friction, less efficiency, more noise and more frequent replacement as they neglect lubrication and adjustment.

Many oil-based lubricants attract dirt and other particles, eventually forming an CZPT paste that will compound wear on chains. This problem can be circumvented by use of a “dry” PTFE spray, which forms a solid film after application and repels both particles and moisture.

VARIANTS DESIGN

Layout of a roller chain: 1. Outer plate, 2. Inner plate, 3. Pin, 4. Bushing, 5. Roller
If the chain is not being used for a high wear application (for instance if it is just transmitting motion from a hand-operated lever to a control shaft on a machine, or a sliding door on an oven), then 1 of the simpler types of chain may still be used. Conversely, where extra strength but the smooth drive of a smaller pitch is required, the chain may be “siamesed”; instead of just 2 rows of plates on the outer sides of the chain, there may be 3 (“duplex”), 4 (“triplex”), or more rows of plates running parallel, with bushings and rollers between each adjacent pair, and the same number of rows of teeth running in parallel on the sprockets to match. Timing chains on automotive engines, for example, typically have multiple rows of plates called strands.

Roller chain is made in several sizes, the most common American National Standards Institute (ANSI) standards being 40, 50, 60, and 80. The first digit(s) indicate the pitch of the chain in eighths of an inch, with the last digit being 0 for standard chain, 1 for lightweight chain, and 5 for bushed chain with no rollers. Thus, a chain with half-inch pitch would be a #40 while a #160 sprocket would have teeth spaced 2 inches apart, etc. Metric pitches are expressed in sixteenths of an inch; thus a metric #8 chain (08B-1) would be equivalent to an ANSI #40. Most roller chain is made from plain carbon or alloy steel, but stainless steel is used in food processing machinery or other places where lubrication is a problem, and nylon or brass are occasionally seen for the same reason.

Roller chain is ordinarily hooked up using a master link (also known as a connecting link), which typically has 1 pin held by a horseshoe clip rather than friction fit, allowing it to be inserted or removed with simple tools. Chain with a removable link or pin is also known as cottered chain, which allows the length of the chain to be adjusted. Half links (also known as offsets) are available and are used to increase the length of the chain by a single roller. Riveted roller chain has the master link (also known as a connecting link) “riveted” or mashed on the ends. These pins are made to be durable and are not removable.

USE

An example of 2 ‘ghost’ sprockets tensioning a triplex roller chain system
Roller chains are used in low- to mid-speed drives at around 600 to 800 feet per minute; however, at higher speeds, around 2,000 to 3,000 feet per minute, V-belts are normally used due to wear and noise issues.
A bicycle chain is a form of roller chain. Bicycle chains may have a master link, or may require a chain tool for removal and installation. A similar but larger and thus stronger chain is used on most motorcycles although it is sometimes replaced by either a toothed belt or a shaft drive, which offer lower noise level and fewer maintenance requirements.
The great majority of automobile engines use roller chains to drive the camshaft(s). Very high performance engines often use gear drive, and starting in the early 1960s toothed belts were used by some manufacturers.
Chains are also used in forklifts using hydraulic rams as a pulley to raise and lower the carriage; however, these chains are not considered roller chains, but are classified as lift or leaf chains.
Chainsaw cutting chains superficially resemble roller chains but are more closely related to leaf chains. They are driven by projecting drive links which also serve to locate the chain CZPT the bar.

Sea Harrier FA.2 ZA195 front (cold) vector thrust nozzle – the nozzle is rotated by a chain drive from an air motor
A perhaps unusual use of a pair of motorcycle chains is in the Harrier Jump Jet, where a chain drive from an air motor is used to rotate the movable engine nozzles, allowing them to be pointed downwards for hovering flight, or to the rear for normal CZPT flight, a system known as Thrust vectoring.

WEAR

 

The effect of wear on a roller chain is to increase the pitch (spacing of the links), causing the chain to grow longer. Note that this is due to wear at the pivoting pins and bushes, not from actual stretching of the metal (as does happen to some flexible steel components such as the hand-brake cable of a motor vehicle).

With modern chains it is unusual for a chain (other than that of a bicycle) to wear until it breaks, since a worn chain leads to the rapid onset of wear on the teeth of the sprockets, with ultimate failure being the loss of all the teeth on the sprocket. The sprockets (in particular the smaller of the two) suffer a grinding motion that puts a characteristic hook shape into the driven face of the teeth. (This effect is made worse by a chain improperly tensioned, but is unavoidable no matter what care is taken). The worn teeth (and chain) no longer provides smooth transmission of power and this may become evident from the noise, the vibration or (in car engines using a timing chain) the variation in ignition timing seen with a timing light. Both sprockets and chain should be replaced in these cases, since a new chain on worn sprockets will not last long. However, in less severe cases it may be possible to save the larger of the 2 sprockets, since it is always the smaller 1 that suffers the most wear. Only in very light-weight applications such as a bicycle, or in extreme cases of improper tension, will the chain normally jump off the sprockets.

The lengthening due to wear of a chain is calculated by the following formula:

M = the length of a number of links measured

S = the number of links measured

P = Pitch

In industry, it is usual to monitor the movement of the chain tensioner (whether manual or automatic) or the exact length of a drive chain (one rule of thumb is to replace a roller chain which has elongated 3% on an adjustable drive or 1.5% on a fixed-center drive). A simpler method, particularly suitable for the cycle or motorcycle user, is to attempt to pull the chain away from the larger of the 2 sprockets, whilst ensuring the chain is taut. Any significant movement (e.g. making it possible to see through a gap) probably indicates a chain worn up to and beyond the limit. Sprocket damage will result if the problem is ignored. Sprocket wear cancels this effect, and may mask chain wear.

CHAIN STRENGTH

The most common measure of roller chain’s strength is tensile strength. Tensile strength represents how much load a chain can withstand under a one-time load before breaking. Just as important as tensile strength is a chain’s fatigue strength. The critical factors in a chain’s fatigue strength is the quality of steel used to manufacture the chain, the heat treatment of the chain components, the quality of the pitch hole fabrication of the linkplates, and the type of shot plus the intensity of shot peen coverage on the linkplates. Other factors can include the thickness of the linkplates and the design (contour) of the linkplates. The rule of thumb for roller chain operating on a continuous drive is for the chain load to not exceed a mere 1/6 or 1/9 of the chain’s tensile strength, depending on the type of master links used (press-fit vs. slip-fit)[citation needed]. Roller chains operating on a continuous drive beyond these thresholds can and typically do fail prematurely via linkplate fatigue failure.

The standard minimum ultimate strength of the ANSI 29.1 steel chain is 12,500 x (pitch, in inches)2. X-ring and O-Ring chains greatly decrease wear by means of internal lubricants, increasing chain life. The internal lubrication is inserted by means of a vacuum when riveting the chain together.

CHAIN STHangZhouRDS

Standards organizations (such as ANSI and ISO) maintain standards for design, dimensions, and interchangeability of transmission chains. For example, the following Table shows data from ANSI standard B29.1-2011 (Precision Power Transmission Roller Chains, Attachments, and Sprockets) developed by the American Society of Mechanical Engineers (ASME). See the references[8][9][10] for additional information.

ASME/ANSI B29.1-2011 Roller Chain Standard SizesSizePitchMaximum Roller DiameterMinimum Ultimate Tensile StrengthMeasuring Load25

ASME/ANSI B29.1-2011 Roller Chain Standard Sizes
Size Pitch Maximum Roller Diameter Minimum Ultimate Tensile Strength Measuring Load
25 0.250 in (6.35 mm) 0.130 in (3.30 mm) 780 lb (350 kg) 18 lb (8.2 kg)
35 0.375 in (9.53 mm) 0.200 in (5.08 mm) 1,760 lb (800 kg) 18 lb (8.2 kg)
41 0.500 in (12.70 mm) 0.306 in (7.77 mm) 1,500 lb (680 kg) 18 lb (8.2 kg)
40 0.500 in (12.70 mm) 0.312 in (7.92 mm) 3,125 lb (1,417 kg) 31 lb (14 kg)
50 0.625 in (15.88 mm) 0.400 in (10.16 mm) 4,880 lb (2,210 kg) 49 lb (22 kg)
60 0.750 in (19.05 mm) 0.469 in (11.91 mm) 7,030 lb (3,190 kg) 70 lb (32 kg)
80 1.000 in (25.40 mm) 0.625 in (15.88 mm) 12,500 lb (5,700 kg) 125 lb (57 kg)
100 1.250 in (31.75 mm) 0.750 in (19.05 mm) 19,531 lb (8,859 kg) 195 lb (88 kg)
120 1.500 in (38.10 mm) 0.875 in (22.23 mm) 28,125 lb (12,757 kg) 281 lb (127 kg)
140 1.750 in (44.45 mm) 1.000 in (25.40 mm) 38,280 lb (17,360 kg) 383 lb (174 kg)
160 2.000 in (50.80 mm) 1.125 in (28.58 mm) 50,000 lb (23,000 kg) 500 lb (230 kg)
180 2.250 in (57.15 mm) 1.460 in (37.08 mm) 63,280 lb (28,700 kg) 633 lb (287 kg)
200 2.500 in (63.50 mm) 1.562 in (39.67 mm) 78,175 lb (35,460 kg) 781 lb (354 kg)
240 3.000 in (76.20 mm) 1.875 in (47.63 mm) 112,500 lb (51,000 kg) 1,000 lb (450 kg

For mnemonic purposes, below is another presentation of key dimensions from the same standard, expressed in fractions of an inch (which was part of the thinking behind the choice of preferred numbers in the ANSI standard):

Pitch (inches) Pitch expressed
in eighths
ANSI standard
chain number
Width (inches)
14 28 25 18
38 38 35 316
12 48 41 14
12 48 40 516
58 58 50 38
34 68 60 12
1 88 80 58

Notes:
1. The pitch is the distance between roller centers. The width is the distance between the link plates (i.e. slightly more than the roller width to allow for clearance).
2. The right-hand digit of the standard denotes 0 = normal chain, 1 = lightweight chain, 5 = rollerless bushing chain.
3. The left-hand digit denotes the number of eighths of an inch that make up the pitch.
4. An “H” following the standard number denotes heavyweight chain. A hyphenated number following the standard number denotes double-strand (2), triple-strand (3), and so on. Thus 60H-3 denotes number 60 heavyweight triple-strand chain.
 A typical bicycle chain (for derailleur gears) uses narrow 1⁄2-inch-pitch chain. The width of the chain is variable, and does not affect the load capacity. The more sprockets at the rear wheel (historically 3-6, nowadays 7-12 sprockets), the narrower the chain. Chains are sold according to the number of speeds they are designed to work with, for example, “10 speed chain”. Hub gear or single speed bicycles use 1/2″ x 1/8″ chains, where 1/8″ refers to the maximum thickness of a sprocket that can be used with the chain.

Typically chains with parallel shaped links have an even number of links, with each narrow link followed by a broad one. Chains built up with a uniform type of link, narrow at 1 and broad at the other end, can be made with an odd number of links, which can be an advantage to adapt to a special chainwheel-distance; on the other side such a chain tends to be not so strong.

Roller chains made using ISO standard are sometimes called as isochains.

 

WHY CHOOSE US 

1. Reliable Quality Assurance System
2. Cutting-Edge Computer-Controlled CNC Machines
3. Bespoke Solutions from Highly Experienced Specialists
4. Customization and OEM Available for Specific Application
5. Extensive Inventory of Spare Parts and Accessories
6. Well-Developed CZPT Marketing Network
7. Efficient After-Sale Service System

 

The 219 sets of advanced automatic production equipment provide guarantees for high product quality. The 167 engineers and technicians with senior professional titles can design and develop products to meet the exact demands of customers, and OEM customizations are also available with us. Our sound global service network can provide customers with timely after-sales technical services.

We are not just a manufacturer and supplier, but also an industry consultant. We work pro-actively with you to offer expert advice and product recommendations in order to end up with a most cost effective product available for your specific application. The clients we serve CZPT range from end users to distributors and OEMs. Our OEM replacements can be substituted wherever necessary and suitable for both repair and new assemblies.

 

 

 

 

 

Usage: Transmission Chain, Drag Chain, Conveyor Chain, Dedicated Special Chain
Material: Alloy
Surface Treatment: Polishing
Feature: Heat Resistant
Chain Size: 1045, Stainless Steel , Q235, Brass
Structure: Roller Chain
Samples:
US$ 0/Meter
1 Meter(Min.Order)

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Customization:
Available

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Customized Request

bush chain

How do you calculate the required length of a bush chain?

The length of a bush chain is determined by the distance between the sprockets or pulleys it needs to span. To calculate the required length, you can follow these steps:

1. Measure the distance between the centers of the sprockets or pulleys where the bush chain will be installed. This is known as the “center distance.”

2. Determine the number of chain links required. The number of links depends on the pitch of the bush chain, which is the distance between adjacent pins. The pitch is typically specified by the chain manufacturer.

3. Divide the center distance by the pitch of the chain to calculate the number of chain links needed. Round up to the nearest whole number to ensure proper engagement of the chain with the sprockets.

4. Multiply the number of chain links by the pitch to obtain the actual length of the chain required.

Keep in mind that the calculated chain length is a starting point and may need to be adjusted during installation. It is recommended to provide some additional slack in the chain to accommodate any tensioning or adjustment requirements.

It’s important to refer to the manufacturer’s specifications and guidelines for the specific bush chain you are using, as different chain types and designs may have variations in calculating the required length.

bush chain

Can a bush chain be used in corrosive or harsh environments?

Yes, a bush chain can be used in corrosive or harsh environments, but it requires careful selection and proper maintenance to ensure optimal performance and longevity. Here are some considerations:

1. Material Selection: When operating in corrosive environments, it is crucial to select a bush chain made from corrosion-resistant materials such as stainless steel or specialty alloys. These materials offer enhanced resistance to corrosion and chemical attack.

2. Coatings and Surface Treatments: Applying coatings or surface treatments to the bush chain can provide additional protection against corrosion. For example, coatings like zinc plating, nickel plating, or chemical treatments can help inhibit rust and corrosion.

3. Sealing and Protection: In harsh environments, it is essential to protect the bush chain from contaminants and corrosive substances. Enclosing the chain in a protective housing or using seals, covers, or boots can help prevent the entry of corrosive agents and debris.

4. Proper Lubrication: Adequate lubrication is crucial for reducing friction and preventing corrosion. Choose lubricants specifically designed for use in corrosive environments, such as those with anti-corrosion additives. Regular lubrication maintenance is necessary to ensure the chain remains well-lubricated and protected.

5. Cleaning and Maintenance: Regular cleaning and maintenance are vital to remove any corrosive substances or contaminants that may have accumulated on the chain. This includes thorough cleaning, inspection, and re-lubrication as necessary.

It is important to consult with chain manufacturers or industry experts to determine the most suitable bush chain and maintenance practices for the specific corrosive or harsh environment. By implementing these measures, a bush chain can effectively operate and withstand the challenges posed by corrosive or harsh conditions.

bush chain

What is a bush chain and how does it work?

A bush chain, also known as a bush roller chain or a bushing chain, is a type of roller chain commonly used in mechanical power transmission systems. It consists of a series of interconnected links, known as bushings, that are joined together by pins. The bushings are cylindrical metal sleeves with internal bearings that rotate on the pins.

The working principle of a bush chain is based on the interaction between the rotating bushings and the teeth of the sprockets. The chain is wrapped around two or more sprockets, with one sprocket being the driver and the other(s) being the driven. As the driver sprocket rotates, it pulls the chain, causing the bushings to rotate on the pins.

Each bushing has an outer surface that comes into contact with the sprocket teeth. The engagement between the sprocket teeth and the bushings’ outer surface creates the driving force, allowing power to be transmitted from the driver sprocket to the driven sprocket(s). This rotational motion transfers torque and enables the movement of various mechanical components or systems connected to the driven sprocket(s).

The bush chain design provides several advantages, including high tensile strength, flexibility, and the ability to transmit power over long distances. The bushings and pins are typically made of hardened steel to ensure durability and resistance to wear. Lubrication is essential to reduce friction and prevent premature wear of the bushings and pins.

Bush chains are widely used in various applications, such as industrial machinery, agricultural equipment, automotive systems, and conveyor systems. They are favored for their reliability, efficiency, and ease of installation. Proper maintenance, including regular lubrication and tension adjustment, is necessary to ensure the smooth operation and longevity of a bush chain.

China Standard 40b-1 B Series Industrial Transmission Gear Reducer Conveyor Parts Short Pitch Precision Simplex Roller Chains and Bush Chains  China Standard 40b-1 B Series Industrial Transmission Gear Reducer Conveyor Parts Short Pitch Precision Simplex Roller Chains and Bush Chains
editor by CX 2023-07-20

China factory Drive Corn Harvester Potting Heavy Duty Leaf Transmission Chain C/Ca Type Steel Industrial Agricultural Roller Chains roller chain accessories

Product Description

Company Profile

-HangZhou CHOHO Industrial Co., Ltd. was founded in 1999. Has become the leader of chain system technology, the first batch of natioal recognized enterprise technology center,national technology innovation demonstration enterprise,and the first A-share listed company in China’s chain drive industry.The securities code is 003033.
-CHOHO has 4 subsidiaries, including testing technology and international trading companies. has 4 factories in HangZhou, Thailand factory, ZheJiang R&D Center and Tokyo R&D Center. In addition, CHOHO ZHangZhoug Industrial zone is expected to be completed & put into operation next year.
-We specialized in producing all kinds of standard chains and special chains, such as Agricultural Chain, Sprocket, Chain Harrow, Tillage Parts,Rice Harvester Chain, GS38 Chain, Roller Chain, Automobile Chain, Motorcycle Chain Industrial Chain and so on.Our  partners among world top enterprises, such as LOVOL,NEWHOLLAND, CLASS,AGCO,DEUTZFAHR,HONDA, KUBOTA etc.

Production Capacity Equipment

By 2571,CHOHO has more than 2,700 sets of main production equipment and more than 600 sets of high-precision equipment,With the domestic advanced product laboratory and chain production assembly line, CHOHO has strong research and development and testing capabilities for high-end chain products.

Our Advantages

1. Any inquiry you make will be answered professionally within 6~8 hours.
2. Attaches great importance to product quality and approved by many global quality system certification,such as France, Norway, Germany.
3. Focused on Chain since 1999, have rich experience in Production.
4. High-quality workers,First-class advanced equipment,good quality control,advanced technology.
5. Be Good at Custom-Made Products, provide customized services for customers.
6. Participated in the drafting of 24 national and industrial standards such as chains.As of 2571-Mar, CHOHO has 180 authorized patents.
7. With the responsibility of “Providing high quality chain system with the same service life for the global locomotive industry”, have established a strong R&D team.

CHOHO has a natural brand awareness.  As of January 2571, CHOHO has registered the “CHOHO” trademark in more than 60 countries, including the United States, Japan, the United Kingdom, France, Germany, Russia, Spain, Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Finland, Greece , Hungary, Ireland, Italy, Netherlands, Poland, Portugal, Romania, Ukraine, Sweden, Australia, Algeria, Egypt, Kenya, Morocco, South Korea, Kazakhstan, Mongolia, Syria, Thailand, Pakistan, India, Brazil, Mexico, Colombia, etc. 

Product Advantages

— Ten CoreTechnologies —

1 Chain strengh preload technology 2 Pin CRV treatment technology
3 Plate smoothly punching technology 4 Bush oil hole technology
5 Vacuum Oiled Technology 6 Precision Punching Technology
7 Low frequency fatigue test technology for lange size chain  8 Chain length comparison technology
9 Variation of silence design technology 10 Chain dynamic testingtechnology technologies

Certifications

CHOHO attaches great importance to product quality and approved by many global quality system certification, such as France, Norway, and Germany. Through the establishment of a sophisticated production management process and quality control system, the entire product process control is achieved. With the introduction of advanced production, processing, and testing equipment, CHOHO has internationally leading full-process quality control capabilities to provide customers with high-quality products.

Choho Provide Chain System Solutions for The Global Top 500 and The Enterprises in Various Fields Top 10!

Broad Customer Channels  Market Continues to Develop!
CHOHO has been invited to participate in domestic & international agricultural machinery exhibitions, such as Hannover Messe, Bologna Fair, Canton Fair ,VIV ASIA and so on!

Packaging & Shipping

Packaging Details: Chain+Plastic Bag+Neutral Box+Wooden case+Big Carton+Steel Pallets or Customization

FAQ

1. Are you manufacturer or trade Company?
    We are a factory focused on producing and exporting Chain over 23 years,have a professional international trade team.
2. What terms of payment you usually use?
    T/T 30% deposit and 70% against document, L/C at sight
3. What is your lead time for your goods?
    Normally 30~45 days.Stock can be shipped immediately.
4. Do you attend any Show?
    We attend Hannover show in Germany, EIMA in Italy, CZPT in France, CIAME in China and many other Agricultural machinery shows.
5.Do you offer free samples?
   Yes,we can.or you just bear the shipping cost.
6.Is OEM available?
   Yes, OEM is available. We have professional designers to help you design.
 

Standard or Nonstandard: Standard
Application: Conveyer Equipment, Agricultural Machinery
Surface Treatment: Polishing
Structure: Roller Chain
Material: Alloy
Type: Agricultural Machinery Chian
Samples:
US$ 1/Meter
1 Meter(Min.Order)

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Request Sample

Customization:
Available

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Customized Request

chain

Advantages and disadvantages of roller chains

If you need to lift heavy objects, you should know how to use a roller chain. Its simple design and simplicity make it ideal for a wide range of applications. This article will discuss the advantages and different types of applications of roller chains. After reading this article, you will be able to choose the type of roller chain that best suits your specific needs. In the next section, we’ll discuss how to deal with it.

Put on

How to measure the wear of a roller chain? There are several methods available, but the most accurate is to use a wear gauge kit. The CZPT Chain Wear Indicator Kit measures chain elongation. Compliant with ANSI and British Standards, this tool is critical to the industry chain and can help you determine when replacement is required. Improper chain maintenance can cause equipment to slip or perform poorly, resulting in unnecessary downtime.
In addition to measuring the elongation of the roller chain, it is also possible to measure the pitch of the rollers. This measurement represents the ANSI #80 standard for roller chains. Vernier calipers can also be used to measure the pitch of chains. This tool is very useful and also acts as a bottle opener. You can even use it as a wear gauge. This way, you can determine if the roller chain needs to be replaced.
The wear resistance of a roller chain can extend its life by 10% or more. However, proper lubrication and general maintenance are essential to ensure the longest lifespan of your chain. The manufacturing process of a roller chain assembly also plays a crucial role in determining its service life. For longer life, you might consider purchasing a heavy-duty series roller chain with thicker side plates and longer pins. If you need greater working load capacity, you can also consider heavy-duty chains.
High-quality components are critical to the longevity of the roller chain. High-quality roller chain components require precise heat treatment processes. The use of proprietary steel allows the company to manufacture more durable drums. The pins are manufactured to tight tolerances and then undergo a centerless grinding process. This process removes any surface defects, resulting in a mirror finish on the pins. The uniformity of this surface finish also ensures that the load is evenly distributed on the pins, extending the life of the chain.

Material

Among the materials used in roller chains, carbon steel and alloy steel are the most common. However, stainless steel is used in food processing equipment and applications that require lubrication. Other materials used for roller chains include nylon and brass. For more information, see the USACE Material Specification Sheet for more information. You can also find information about the performance of a roller chain by its design. But before choosing one of these materials, consider its pros and cons.
Stainless steel is an excellent choice for roller chains. It is corrosion-resistant and can operate in extreme temperatures without cracking. Stainless steel is a non-magnetic material that can operate in a temperature range of -200 degrees to +700 degrees Fahrenheit. In addition to its corrosion-resistant properties, stainless steel can withstand a variety of environments and can be used in heavy-duty applications. The MEGA series is the strongest stainless steel roller chain in the world.

Application

As the name suggests, a roller chain has 5 basic components: pins, bushings, rollers, and pin chainplates. These components are precision engineered to ensure optimum performance and durability. Typical applications include drives and conveyor belts. The various components of the roller chain can be customized to specific needs. Read on to learn more about how these parts work together. This article presents the advantages and disadvantages of different types of roller chains and discusses their applications.
A roller chain is a form of chain drive consisting of short cylindrical rollers connected together by side links and gears called sprockets. While these devices are simple, they have some limitations. In most cases, sprockets must be designed with a maximum tensile load on one tooth to prevent premature chain failure. Therefore, these chains are less efficient than belt drives with higher inertia.
Roller chains are usually made of carbon or alloy steel, although stainless steel is often used where food processing machinery and lubrication are problematic. Sometimes, nylon and brass are used. The maximum running speed of the roller chain is important for some applications, but it also provides economic benefits for users and manufacturers. The maximum running speed of a roller chain is usually governed by a wear limit, which can vary by application.
The global roller chain market is expected to grow at a CAGR of over 5.4% over the next six years. The research report covers the competitive landscape and key factors influencing the market. The report also analyzes the growth potential, product utilization, and pricing models of key vendors. It also covers the SWOT analysis of the key players in the industry. The study provides a comprehensive market analysis of all these factors and more. It also highlights key players and their strategies and identifies the fastest growing regions for their products and services.

Maintain

Because rollers are exposed to a variety of environments, including snow, rain, and muddy roads, regular maintenance is required to prevent damage. Because they must encounter these elements frequently, frequent inspections are important to prevent rust and other damage. Also, avoid pouring acidic or alkaline cleaning products on the roller chain. Instead, use hot water with hand sanitizer or a disposable toothbrush to clean the rollers. Washing the chain directly with water has little effect.
For small rollers, the workload during the break-in period should not be too large, otherwise, it will cause overheating. The small drum should also be inspected frequently for any unusual appearance, which may indicate that the system is not functioning properly. In this case, the operation must be suspended. Failure to do so could result in serious injury or a facility fire. Additionally, a properly lubricated roller chain is essential to ensure long-term performance.
The surface of the roller is often rusted and scratched. Over time, these little scars can spread to the drive, damaging it. Also, the chain may not be properly spaced and timed. Therefore, it is very important to check regularly to ensure that the chain is in top condition. When the chain wears to 3% or more, the entire roller chain needs to be replaced. Failure to do so may damage the drive, the roller sprocket, or the entire chain.
Given the chain’s processing environment, lubrication is critical to its performance. If the chain is lubricated, it must be re-lubricated frequently. However, lubricated roller chains are susceptible to contamination, especially in the biomass industry. In these environments, airborne organic particles and debris from the biomass industry can contaminate lubricated roller chains. This is why maintenance is important for lubricating roller chains.
chain

Preloading

The benefits of preloading roller chains are well documented. In general, preloading eliminates the initial elongation of the roller chain, increasing its service life. Preloading is an effective way to achieve this, and a preloading chart can help illustrate the benefits of this process. Chains with little or no preload will stretch significantly during drive start, while chains will stretch rapidly as the surface hardness of the wear parts increases. Additionally, a properly preloaded chain has little or no elongation during the initial start-up of the drive, extending wear life.
Premium manufacturers apply the preload concept during their production phase, aligning all major components at the same time. This approach helps eliminate elongation issues that lead to rapid degradation of the roller chain. If this is not checked, the chain drive will stretch immediately over time. To avoid these problems, it is important to purchase a high-quality preloaded roller chain from a reputable source.
The heat treatment process is an effective way to prevent excessive wear of the roller chain. Heat treatment is a complex process that takes place in a factory during manufacturing. This process helps the rollers maintain high hardness and depth, preventing breakage. When buying a roller chain, make sure that the chain is heat treated and that the chain is manufactured to a high degree of precision. It also ensures that the product can be used for a long time.
In addition to performance benefits, preloading can also reduce initial elongation. A preloaded roller chain will exhibit near linear elongation, whereas a non-preloaded chain will experience rapid elongation. Therefore, they will reach the recommended 3% elongation earlier. Make sure the chain is properly lubricated. Also, consider how the chain is arranged. This is critical for optimal longevity.

China factory Drive Corn Harvester Potting Heavy Duty Leaf Transmission Chain C/Ca Type Steel Industrial Agricultural Roller Chains   roller chain accessoriesChina factory Drive Corn Harvester Potting Heavy Duty Leaf Transmission Chain C/Ca Type Steel Industrial Agricultural Roller Chains   roller chain accessories
editor by CX 2023-05-18

China OEM Drive Corn Harvester Potting Heavy Duty Leaf Transmission Chain C/Ca Type Steel Industrial Agricultural Roller Chains elite roller chain

Product Description

Company Profile

-HangZhou CHOHO Industrial Co., Ltd. was founded in 1999. Has become the leader of chain system technology, the first batch of natioal recognized enterprise technology center,national technology innovation demonstration enterprise,and the first A-share listed company in China’s chain drive industry.The securities code is 003033.
-CHOHO has 4 subsidiaries, including testing technology and international trading companies. has 4 factories in HangZhou, Thailand factory, ZheJiang R&D Center and Tokyo R&D Center. In addition, CHOHO ZHangZhoug Industrial zone is expected to be completed & put into operation next year.
-We specialized in producing all kinds of standard chains and special chains, such as Agricultural Chain, Sprocket, Chain Harrow, Tillage Parts,Rice Harvester Chain, GS38 Chain, Roller Chain, Automobile Chain, Motorcycle Chain Industrial Chain and so on.Our  partners among world top enterprises, such as LOVOL,NEWHOLLAND, CLASS,AGCO,DEUTZFAHR,HONDA, KUBOTA etc.

Production Capacity Equipment

By 2571,CHOHO has more than 2,700 sets of main production equipment and more than 600 sets of high-precision equipment,With the domestic advanced product laboratory and chain production assembly line, CHOHO has strong research and development and testing capabilities for high-end chain products.

Our Advantages

1. Any inquiry you make will be answered professionally within 6~8 hours.
2. Attaches great importance to product quality and approved by many global quality system certification,such as France, Norway, Germany.
3. Focused on Chain since 1999, have rich experience in Production.
4. High-quality workers,First-class advanced equipment,good quality control,advanced technology.
5. Be Good at Custom-Made Products, provide customized services for customers.
6. Participated in the drafting of 24 national and industrial standards such as chains.As of 2571-Mar, CHOHO has 180 authorized patents.
7. With the responsibility of “Providing high quality chain system with the same service life for the global locomotive industry”, have established a strong R&D team.

CHOHO has a natural brand awareness.  As of January 2571, CHOHO has registered the “CHOHO” trademark in more than 60 countries, including the United States, Japan, the United Kingdom, France, Germany, Russia, Spain, Austria, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Finland, Greece , Hungary, Ireland, Italy, Netherlands, Poland, Portugal, Romania, Ukraine, Sweden, Australia, Algeria, Egypt, Kenya, Morocco, South Korea, Kazakhstan, Mongolia, Syria, Thailand, Pakistan, India, Brazil, Mexico, Colombia, etc. 

Product Advantages

— Ten CoreTechnologies —

1 Chain strengh preload technology 2 Pin CRV treatment technology
3 Plate smoothly punching technology 4 Bush oil hole technology
5 Vacuum Oiled Technology 6 Precision Punching Technology
7 Low frequency fatigue test technology for lange size chain  8 Chain length comparison technology
9 Variation of silence design technology 10 Chain dynamic testingtechnology technologies

Certifications

CHOHO attaches great importance to product quality and approved by many global quality system certification, such as France, Norway, and Germany. Through the establishment of a sophisticated production management process and quality control system, the entire product process control is achieved. With the introduction of advanced production, processing, and testing equipment, CHOHO has internationally leading full-process quality control capabilities to provide customers with high-quality products.

Choho Provide Chain System Solutions for The Global Top 500 and The Enterprises in Various Fields Top 10!

Broad Customer Channels  Market Continues to Develop!
CHOHO has been invited to participate in domestic & international agricultural machinery exhibitions, such as Hannover Messe, Bologna Fair, Canton Fair ,VIV ASIA and so on!

Packaging & Shipping

Packaging Details: Chain+Plastic Bag+Neutral Box+Wooden case+Big Carton+Steel Pallets or Customization

FAQ

1. Are you manufacturer or trade Company?
    We are a factory focused on producing and exporting Chain over 23 years,have a professional international trade team.
2. What terms of payment you usually use?
    T/T 30% deposit and 70% against document, L/C at sight
3. What is your lead time for your goods?
    Normally 30~45 days.Stock can be shipped immediately.
4. Do you attend any Show?
    We attend Hannover show in Germany, EIMA in Italy, CZPT in France, CIAME in China and many other Agricultural machinery shows.
5.Do you offer free samples?
   Yes,we can.or you just bear the shipping cost.
6.Is OEM available?
   Yes, OEM is available. We have professional designers to help you design.
 

Standard or Nonstandard: Standard
Application: Conveyer Equipment, Agricultural Machinery
Surface Treatment: Polishing
Structure: Roller Chain
Material: Alloy
Type: Agricultural Machinery Chian
Samples:
US$ 1/Meter
1 Meter(Min.Order)

|
Request Sample

Customization:
Available

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Customized Request

chain

drive chain type

Drive chains are used in a variety of industrial applications. Unlike roller chains, which are more efficient in terms of weight and size, drive chains slide on steel guides. Drive chains are often used for dirty work. Here’s what you need to know about the various types of drive chains. In this article, we’ll look at pin chains, engineered steel chains, bushing roller chains, and timing chains. These types are the most common and the most commonly used.

time chain

There are several factors to consider when deciding which drive chain to buy. What matters is how long the chain will last, as the timing chain will stretch over time. However, they are pre-stretched during manufacture to reduce the risk of stretching. Timing chains can also be noisy compared to toothed belt drives, but rails and chain tensioners can alleviate this problem. Timing chains also wear slower than belts, reducing repair costs.
Timing chains require little maintenance compared to belt drives. When well lubricated, timing chains require little maintenance. The only maintenance really required is checking the engine oil level and following the manufacturer’s recommended service intervals. Timing chains of drive chains are also safer than belt drives and can be dangerous if the toothed belt tears. Also, the timing chain only needs minor repairs and replacements. Garages can purchase complete timing chain kits that contain all the parts needed for repairs.
Drive chains can be equipped with roller chains or timing chains, depending on the load on the engine. The style of the timing chain depends on the type of motor used. However, the roller chain is the most common choice due to its high strength and NVH properties. The roller chain has two tabs pressed into the eyes, and two rollers above them. These components work together to improve engine performance.
Many modern vehicles use timing chains. Timing gears synchronize the camshaft and crankshaft so that the valves open and close at the appropriate times. This is critical to the running quality, power output, and fuel consumption of the engine. The timing chain also reduces the amount of pollution emitted by the vehicle. Over the past two decades, many OEMs have turned to time chains for OHC/DOHC engines.

pin chain

Steel pivot chains feature open barrels to reduce blocking and material buildup. These chains are designed for power transmission and transportation applications, often used in agricultural applications. They can be custom welded using specialized accessories. These chains can be used in agricultural, industrial and municipal applications. Here’s a closer look at each. Read on to learn about the benefits of steel pivot chains.
The Long Pitch Class 700 Pivot Chain is a versatile chain for conveying and lifting products. Its T-head pins fit snugly so dust doesn’t get into the pin holes. It is also constructed with a closed bearing structure to prevent elongation due to wear. Steel pivot chains are designed for high fatigue applications and are versatile.

Engineering Steel Chain

Engineered steel drive chain provides maximum power transfer while minimizing weight. Engineering chains are often used for tough oil drilling operations. Designed for durability and tight tolerances, these chains can be used in a variety of industrial equipment. Whether you need to lift heavy objects or store a lot of items, engineered steel chains will do the job. Read on to learn more about the benefits of engineering chains.
Engineered steel chains consist of links or pin joints with large gaps between the components. The material of these chains is designed to handle abrasives. While many of these chains are used as conveyors, some are designed for drives. You can find these chains on conveyors, forklifts, bucket elevators, oil rigs and more. To get the most out of them, they should be able to withstand the power produced by the prime mover.
The chain can withstand high tensile stresses and is ductile enough to withstand fatigue. The center-to-center distance between the chain and sprockets is between 30% and 50% of the pitch. On smaller sprockets, the arc of contact between the teeth and chain must be at least 120 degrees. The resistance of the chain drive depends on the use environment, including vibration, noise, fatigue strength and other factors.
There are many types of engineering steel drive chains, each with a different function. The most commonly used type is the elevator. Its lift mechanism raises and lowers the carriage. Most cranes are attached to the load with hooks. Another type of chain is the oval link. Its links are welded and the sprocket has receivers for each link. It is used in low speed applications for elevators, chain hoists and anchors in offshore operations.

Bushing Roller Chain

Typically, a bushing roller chain as a drive chain consists of two link assemblies. The inner link consists of two plates held together by two sleeves, while the outer link consists of two plates connected by pins that pass through the inner link. However, there are some differences between bushing roller chains. The main difference is the type of link and the amount of lubrication required. If you want to learn more about bushing roller chains, keep reading.
While roller chains are generally stronger and more durable than bushing chains, they are not immune to wear. During the driving cycle, they lengthen and undergo a process called articulation. The rate at which they elongate depends on the lubrication and load applied to them. The frequency of pin and bushing articulation is also critical. Like other wear parts, the manufacture of critical wear parts requires close attention to detail to ensure optimum performance. Correct raw material selection, part fabrication, and assembly are key factors in achieving optimum performance. Improperly prepared parts can affect wear life and performance.
Consider your application and load distribution when selecting a bushing roller chain as your drive chain. The length of the chain must be between 30 and 50 times its pitch. The arc of contact between the small sprocket teeth must be at least 120 degrees. The resistance of the drive chain depends on the usage environment, which will determine its fatigue strength and vibration level. It’s a good idea to check the chain length before deciding to replace it.
chain

flat top chain

The TSplus flat top drive chain is the most flexible conveying medium on the market today. They can be connected end-to-end to create extended conveyor lines. The side bend design allows it to be used with a variety of conveyor types including inline, snake, and carousel conveyors. These chains are available in a variety of sizes, ranging in width from 3 feet to 20 feet.
A variety of materials are available for flat-top chains, including steel and plastic. Steel chains are ideal for applications requiring wear resistance. They are sturdy and well made. Plastic chains are particularly durable, but not suitable for harsh environments. Stainless steel flat top chains are suitable for a variety of applications, and some manufacturers make them from stainless steel or even aluminum. If your application requires a durable flat top chain, choose a chain made from iwis hardened stainless steel.
Another type of flat-top drive chain is the side bend chain. Suitable for flexible machinery requiring efficient conveying. It is equipped with a single hinge pin or double hinge pin. Either option will do, but each hinge pin has its advantages. Single hinge pin chains are suitable for smaller light-duty conveyors, while double hinge pins are more suitable for medium and heavy-duty applications.
CZPT is a modular flat top chain conveyor system. Its standardized components and modules can be easily integrated into any production process. And because it’s a single track, you can lengthen or shorten it as needed. Its versatile design makes it compatible with other conveyor systems such as belts and sprockets. This monorail modular design allows system lengths up to 40 meters and is compatible with other conveyor systems.

China OEM Drive Corn Harvester Potting Heavy Duty Leaf Transmission Chain C/Ca Type Steel Industrial Agricultural Roller Chains   elite roller chainChina OEM Drive Corn Harvester Potting Heavy Duty Leaf Transmission Chain C/Ca Type Steel Industrial Agricultural Roller Chains   elite roller chain
editor by CX 2023-05-17

China China Electroplating DONGHUA wooden case/container Standard Chains and Special jewelry Industrial Chain agricultural roller chain

Solution Description

ISO16949: 2009 Approved Industrial Chain 

Why Choose Us? 

one. HangZhou Xihu (West Lake) Dis.hua Chain Team Co., Ltd established in 1991, we have 5 subsidiaries in china and have 6 subsidiaries overseas
2. we covering a creation spot of two hundred,a hundred sq. meters, have far more than 1,800 sets of advanced products and above 3,100 extremely competent employees, the yearly creation capability has exceeded twenty,000,000meters
3. we specialised in generating all kinds of normal chains and particular chains, this kind of as A or B collection chains, driving chains, conveyor chains, hoisting chains, agricultural chains, sprockets, industrial chains, sprockets, gears, wheels and so on
4. we have attained ISO9001, ISO14001, ISO16969, AAA and API certificates.

5. Our associates amongst globe best enterprises, such as JOHNDEERE, NEW HOLLAND, CLAAS, HONDA, KUBOTA, YANMAR, and so forth.
 

1. Industrial Chain Elements

2. Manufacturing circulation chart
one. Incoming content
2. Inspection
3. Creation of chain board (cold roll steel/punch/heat treatment method/shot blasting/cleaning)
four. Generation of roller(burr wiping & smear/heat treatment method/wiping grinding/cleansing)
five. Manufacturing of quill(burr wiping & smear/centerless cylindrical grinding/heat treatment method/shining)
6. Production of shaft(cutting/chamfering/warmth therapy/ centerless cylindrical grinding/cleaning)
seven. Assembling
eight. Closing inspection
9. Packing

three. Certificate


4. 
Company Information

HangZhou Xihu (West Lake) Dis.hua Chain Group Co., Ltd was founded in 1 9 9 1, and now it has five wholly owned subsidiaries, one in ZheJiang  province, other four in HangZhou, ZHangZhoug province, it is a professional manufacturer of chains, sprockets, tooth gears and various power transmission products.

 

The group has XIHU (WEST LAKE) DIS.HUA, ZIQIANG brands, is focused on producing all variety of standard roller chains and special chains, such as conveyor chain, stainless steel chain, agricultural chain. With Xihu (West Lake) Dis.hua brand registered in more than 70 countries like America, Europe, Japan, it is building long term cooperation with these world top enterprises, such as JOHNDEERE, NEW HOLLAND, CLAAS, HONDA, KUBOTA, YANMAR. 

 

There is a technical center of province level, Xihu (West Lake) Dis.hua academician working station, experiment station for Xihu (West Lake) Dis.hua post doctors, and national hundreds of program set up in Xihu (West Lake) Dis.hua group. With these platforms and strong technical ability, the more than hundreds of Engineers and technicians have developed all variety of special high precise and high strength products, conducted mold programs for key components in the car and national industry revitalizing program. 

 

Great attention has been paid on environmental protection and energy saving. The product well displays environmental protection and energy saving. In the year of 2 0 0 0, Xihu (West Lake) Dis.hua took the lead in gaining I S O 1 4 0 0 1 environment management certificate and thereafter passed the inspection of clean production and recycling economy, winning the title of “ZHangZhoug Green Enterprise”.

 

“We are always serving our customers with our best products.”

To Be Negotiated 100 Meters
(Min. Order)

###

Usage: Conveyor Chain
Material: Alloy/Carbon Steel
Surface Treatment: Electroplating
Feature: Heat Resistant
Chain Size: 1/2"*11/128"
Structure: Roller Chain

###

Customization:
To Be Negotiated 100 Meters
(Min. Order)

###

Usage: Conveyor Chain
Material: Alloy/Carbon Steel
Surface Treatment: Electroplating
Feature: Heat Resistant
Chain Size: 1/2"*11/128"
Structure: Roller Chain

###

Customization:

How to choose a drive chain

The process of manufacturing a drive chain starts with bushing. Both inner and outer diameters are strictly measured to ensure tight tolerances. The roundness of the bushing is critical as irregular surfaces in the contact area can cause accelerated wear and shorten chain life. That’s why the CZPT manufacturing process is carefully designed to optimize the wear performance of the chain. There are several types of bushings including roller, forged rivetless, flat top, and timing.
chain

roller chain

The tensile strength of a roller chain is the number of pounds it can withstand before breaking. Fatigue strength is equally important, although the two do not necessarily go hand in hand. Fatigue strength depends on several factors, including the quality of steel used in manufacturing, the quality of the pitch holes, the type of shot peening used, and the thickness and design of the link plates. Here are some things to consider when choosing a roller chain for a drive chain.
When sizing a chain, first determine how much power will be delivered. Then, determine how many teeth you need for the drive sprocket. The gear ratio is approximately 2:1. The number of sprocket teeth depends on the size of the motor. A chain with a higher tooth count requires fewer teeth than a smaller chain. The size of the drive sprocket also depends on the horsepower of the motor.
Before installing rollers or conveyor chains, make sure the drive system is properly aligned. If the drive chain is misaligned, the load on other components will be uneven. This can cause excessive wear on the sprocket or roller chain. Also, check that the sprocket is as close to the bearing as possible. Connecting links can be secured using openings or spring clips.
Different manufacturing processes can affect the performance of the roller chain. Some manufacturers have chains pre-installed at the factory to minimize initial stretch. Others build chains by preloading sprockets and ensuring consistent precision heat treatment. The final product may have greater elongation or less wear than previous products. It is best to follow the manufacturer’s recommendations to extend the life of the roller chain. If you are interested in purchasing a new drive chain, please contact a trusted supplier in your area.

Drop forged rivetless chain

Forged rivetless drive chains are ideal for applications where flexibility and strength are critical. The chain consists of forged steel components for high strength and lightweight. These chain assemblies are easy to assemble without the use of tools and are commonly used on carts, assembly lines, and drag conveyors. They are also compatible with related chain, drive, and accessory products. They have a short turning radius and therefore high flexibility and strength.
The X-348 Forged Rivetless Chain is an example of such a drive chain. This chain is perfect for automated machines that run late at night. It is available in a variety of weight limits and sizes. The chain is pre-stressed after assembly, and a two-year parts replacement warranty is standard. Its durability is also enhanced by the inclusion of push dogs that engage the front floating dogs on the leading free cart.
In addition to this type of chain, CZPT also offers a full line of Caterpillar Drive chains. They are designed to provide fatigue-free operation. The drive jaws are one-piece forged induction hardened steel compatible with forged rivetless chains. There are many special custom chains to choose from. These forged chains can be installed on Caterpillars as well as other types of tractors for maximum durability and efficiency.
Distributors of forged chain products offer a variety of sizes, pitches, and materials for material handling and conveying systems. Typically, this type of chain is used in conveyor and lifting applications and ranges from 3 inches to 9 inches. Depending on size and thickness, it is ideal for a variety of industries including automotive, food, paper, and steel mills. In addition, the chain is corrosion-resistant and corrosion-free.
chain

flat top chain

The flat-top drive chain is used for conveying large and medium workpiece pallets. These chains are available in a variety of materials and designs, including plastic, steel, and stainless steel. The steel flat top chain provides high wear resistance and excellent noise reduction. Steel flat-top chains are suitable for applications requiring high loads and excellent workmanship. HD profiles are compatible with steel flat-top chains and are highly recommended for extreme applications.
CZPT produces two types of flat-top chains. Tabletop chains are similar to wing door hinges, while MatTop chains are assembled using full-width pins. Both types are available in standard widths of 3.25 to 12 inches and are shipped in 10-foot sections. Both types can be shaped according to the width of the chain.
Double hinge pin flat-top chains are available with a variety of hinge pins. There are TAB and standard hinge pins for different machines and drive methods. A flat-top chain with dual-hinge pins will provide higher load carrying capacity, but be aware of the hinge pin size and style required for your application. The hinge pins should be long enough to ensure a smooth and smooth delivery. Double hinge pin flat top drive chains are available in a variety of sizes and designs.
Using standardized components and modules, the flat-top chain conveyor system is highly adaptable and can be seamlessly integrated into any production process. It can also be extended to handle a wider range of containers. Using a single drive, the CZPT system can be extended to a length of 40 meters. Its versatility makes it the choice of many industries. There is also a wide variety of flat-top drive chains to choose from.

time chain

The drive chain is a critical component of any internal combustion engine. They transmit the rotation of the crankshaft to the camshaft via the timing chain. These chains have been standard in cars since the turn of the 20th century, and while toothed belts have become a more cost-effective alternative, manufacturers such as Mercedes-Benz and BMW remain loyal to traditional chain drives.
Timing chains come in many shapes and sizes, with different designs depending on the type of load they must carry. Roller chains are the most common and offer an excellent balance of strength and NVH performance. Its design is similar to a bicycle chain, and the inner link consists of two blades pressed into the holes of the sprocket. Roller chains can also pass through smaller diameter sprockets, and roller chains take up less space than chain links.
The length of the chain allows it to stretch over time. In addition, improper oil maintenance can lead to premature timing chain damage. Without an oil change, the chain is not lubricated, causing the rollers and links to rub against each other. This can cause excessive chain wear and eventually chain breakage. To avoid premature timing chain failure, it is advisable to have your vehicle inspected by a mechanic.
For automotive timing chains, the CZPT website offers the best prices for the timing chain you need. You can find the right timing chain for your car by registering on this website. You can also contact a mechanic to get the parts you need. If you don’t know how to diagnose your timing mechanism, you can always check the owner’s manual or the manufacturer’s website. It is critical to follow the manufacturer’s recommendations to avoid catastrophic failure.
chain

Oil-impregnated bushing

Oil-impregnated bushings for drive chains are an excellent solution to drive chain lubrication problems. Usually, drive chains require additional lubrication, but by adding special oil-impregnated bushings, the chain can run without lubrication. Oil-immersed bushings, such as those of the CZPT brand for CZPT, are specially manufactured for this purpose. They capture oil during operation and release it onto the bearing surfaces, returning it to the bushing by capillary action.
Since their introduction to the automotive industry, engineered composite plastic bushings have been shown to provide longer service life and save up to 40% in maintenance costs. They have replaced bronze in thousands of applications, including pumps, medical equipment, and food processing machinery. Because oil-impregnated bronze bearings rely on capillary action, they must rotate to maintain a complete lubricating film. However, several factors prevent this film from fully forming, including low speeds and intermittent use.
During the manufacturing process, oil-impregnated bushings are manufactured to meet the wear resistance requirements of the drive chain. The sintered density of the oil-impregnated sintered bushing determines its mechanical strength. The larger sintered density increases the wear resistance of the oil-impregnated bushing but reduces the mechanical strength.
Whether or not a drive chain is lubricated will determine its overall life. Proper lubrication can extend chain life by 100% compared to a chain without proper lubrication. Proper lubrication means using high-quality oils without additives and oils that flow freely at prevailing temperatures. Indirect heating is required by immersing the drive chain in the molten pool as certain additives prevent oil from entering the chain joint.

China China Electroplating DONGHUA wooden case/container Standard Chains and Special jewelry Industrial Chain     agricultural roller chainChina China Electroplating DONGHUA wooden case/container Standard Chains and Special jewelry Industrial Chain     agricultural roller chain
editor by czh 2022-11-25