China high quality Grade 80 Alloy Steel Chain From China Supplier

Product Description

Grade 80 Alloy Steel Chain From China Supplier
1.80Grade, High intensity chain, breaking load>8)

2. TOP5 lifting equipment supplier in China;

3. One of the first batch of enterprises certified by Alibaba;

4. Brand customers: CNPC, China Railway Group and so on

 

TECHNOLOGY ADVANTAGES

1. Focuse on the production and R&D of lifting equipment for about 30 years;

2. Professional independent research and development team, recognized by domestic and foreign customers.

3. Company was honored by the givernment as a High-Tech enterprise in 2571

 

Service Advantage

1. 7D*24H after-sales service,

2. More than 100 professional service staff.

 

The products of our company have exported to over 80 countries and regions,including EUROPE,USA,AUSTRALIA and SOUTHEAST ASIA,etc.

Certification

RIGOROUS QUALITY CONTROL

1. Certificate:CE,SGS,ISO:9001,BV

2. The third-party inspection for quality testing is accepted

3. Product qualification rate more than 98%

4. In accordance with the requirements of Environmental Protection Administration,

    the quality and delivery can be guaranteed

 

 

Usage: Drag Chain
Material: Alloy
Surface Treatment: Oxygenation
Feature: Heat Resistant
Chain Size: 1/2"*3/32"
Structure: Welded Chain
Customization:
Available

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Customized Request

Can pitch chains be used in the construction and building materials industry?

Yes, pitch chains can be used in the construction and building materials industry for various applications. These chains are well-suited for material handling and conveyor systems, which are essential for moving heavy and bulky materials within construction sites and building material production facilities. Here are some specific applications where pitch chains are commonly used in this industry:

  • Aggregate Handling: Pitch chains are used in conveyor systems to transport gravel, sand, and other aggregates from one location to another. These chains can handle the heavy loads and abrasive nature of the materials.
  • Cement Production: In cement plants, pitch chains are utilized in cement kilns and other material handling processes. They are responsible for conveying raw materials, clinker, and finished cement products throughout the production line.
  • Brick and Block Manufacturing: Pitch chains play a role in the production of bricks and concrete blocks. They are used to move raw materials, shape the bricks, and transfer finished products for curing and packaging.
  • Lumber and Timber Processing: For the construction of wooden structures, pitch chains are employed in sawmills and timber processing facilities. They aid in transporting logs, lumber, and wood products within the facility.
  • Roofing Material Production: In the manufacturing of roofing materials like shingles and tiles, pitch chains are used in conveyor systems to move the materials through various stages of production.
  • Steel and Metal Fabrication: For construction projects that involve steel and metal components, pitch chains are used in material handling and conveyor systems within fabrication facilities.

The construction and building materials industry often involves harsh environments and heavy-duty applications, making pitch chains an ideal choice due to their strength, durability, and ability to handle continuous operation. Regular maintenance and proper lubrication are essential to ensure the optimal performance and longevity of pitch chains in these applications.

China high quality Grade 80 Alloy Steel Chain From China Supplier  China high quality Grade 80 Alloy Steel Chain From China Supplier
editor by CX 2023-11-09

China high quality Chain Supply 04 B Series Short Pitch Precision Engineering and Construction Machinery Carbon Steel Simplex Timing Roller Chains and Bush Chains with Link

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
04 6.000 4.00 2.80 1.85 6.80 7.8 5.00 0.60 3.0/682 3.2 0.11

*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 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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Customized Request

bush chain

Can a bush chain be used in continuous operation applications?

Yes, a bush chain can be used in continuous operation applications. Continuous operation refers to a scenario where the chain is constantly in motion without significant periods of rest.

Bush chains are designed to handle continuous operation and are commonly used in various industrial applications that require continuous power transmission or material handling. They are known for their durability, reliability, and ability to withstand prolonged use.

When selecting a bush chain for continuous operation, it is important to consider factors such as the chain’s load capacity, speed rating, lubrication requirements, and overall durability. It’s crucial to choose a chain that is specifically designed for continuous operation to ensure optimal performance and longevity.

Regular maintenance, including proper lubrication and periodic inspections, is essential to ensure the smooth operation and longevity of the bush chain in continuous applications. Following the manufacturer’s guidelines for maintenance and lubrication intervals is crucial to prevent premature wear and ensure reliable operation.

Overall, bush chains are well-suited for continuous operation applications and provide a reliable means of power transmission or material handling in various industries.

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

What industries commonly use bush chains?

Bush chains are widely used in various industries that require reliable and efficient power transmission systems. Here are some industries that commonly utilize bush chains:

1. Manufacturing and Machinery: Bush chains find extensive use in manufacturing and machinery applications. They are employed in conveyors, assembly lines, packaging equipment, machine tools, and other machinery where reliable and smooth power transmission is essential.

2. Automotive: The automotive industry relies on bush chains for various applications, including engine timing systems, camshaft drives, timing belts, and other critical automotive components. Bush chains offer the durability and strength required for high-speed and high-torque applications.

3. Agriculture: Bush chains play a crucial role in agricultural machinery such as tractors, combines, harvesters, and irrigation systems. They are used for transmitting power in these rugged and demanding environments, providing reliable operation even under heavy loads.

4. Material Handling: The material handling industry heavily utilizes bush chains in conveyor systems, elevators, escalators, and other equipment involved in the movement of goods. Bush chains offer the strength and durability required for handling heavy loads and continuous operation.

5. Mining and Quarrying: In mining and quarrying operations, bush chains are employed in various equipment, including crushers, screens, conveyors, and bucket elevators. They withstand the harsh conditions and heavy loads encountered in these industries.

6. Energy and Power Generation: Bush chains are used in power plants, renewable energy systems, and other energy-related applications. They are utilized in equipment such as turbines, generators, pumps, and conveyors to transmit power efficiently and reliably.

7. Construction and Heavy Equipment: The construction industry relies on bush chains in equipment like cranes, excavators, loaders, and bulldozers. These chains provide the necessary power transmission for the movement of heavy loads and the operation of various construction machinery.

These are just a few examples of the industries that commonly use bush chains. However, bush chains have a broad range of applications and can be found in many other industries where reliable power transmission is required.

China high quality Chain Supply 04 B Series Short Pitch Precision Engineering and Construction Machinery Carbon Steel Simplex Timing Roller Chains and Bush Chains with Link  China high quality Chain Supply 04 B Series Short Pitch Precision Engineering and Construction Machinery Carbon Steel Simplex Timing Roller Chains and Bush Chains with Link
editor by CX 2023-11-09

China wholesaler Saw Engine Motorcycle Bicycle Sprocket Conveyor Driving Transmission Track Timing 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,JOHN DEERE,NEW HOLLAND, 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

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, CHINAMFG 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.

Usage: Transmission Chain, Conveyor Chain, Dedicated Special Chain, Roller Chain
Material: Stainless steel
Surface Treatment: Polishing
Samples:
US$ 0/Meter
1 Meter(Min.Order)

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Customization:
Available

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Customized Request

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

What are the advantages of using a steel chain in industrial settings?

A steel chain offers numerous advantages in industrial settings, making it a popular choice for various applications. Some of the key advantages include:

  • Strength and Durability: Steel chains are known for their high strength and durability, making them suitable for heavy-duty applications in industrial environments. They can withstand significant loads and resist wear and tear, ensuring a long service life.
  • Wide Range of Sizes and Configurations: Steel chains are available in a wide range of sizes and configurations to suit different industrial applications. This versatility allows for customization and selection of the right chain for specific needs.
  • High Temperature Resistance: Steel chains can perform reliably in high-temperature environments, making them suitable for applications involving heat and extreme conditions.
  • Corrosion Resistance: Stainless steel chains, in particular, offer excellent corrosion resistance, making them ideal for use in industries where exposure to moisture or chemicals is common.
  • Power Transmission: Steel chains are widely used for power transmission in industrial machinery and equipment. They efficiently transfer mechanical power from one shaft to another, providing a reliable means of motion and operation.
  • Material Handling: Steel chains are essential components in conveyor systems used for material handling and transportation in industries like mining, agriculture, and manufacturing.
  • Cost-Effective: Steel chains are cost-effective solutions for industrial applications due to their long-lasting performance and low maintenance requirements.
  • Interchangeability: Standardized steel chains, such as those following ANSI or ISO standards, are interchangeable, simplifying replacement and reducing downtime.
  • Low Friction: Steel chains with appropriate lubrication can operate with low friction, minimizing energy losses and enhancing efficiency.
  • Reliability: Steel chains have a proven track record of reliability in various industrial processes, contributing to the overall efficiency and productivity of operations.

In summary, steel chains are preferred in industrial settings due to their strength, durability, temperature resistance, and versatility. They play critical roles in power transmission, material handling, and various other applications, ensuring smooth and efficient operations in diverse industries.

China wholesaler Saw Engine Motorcycle Bicycle Sprocket Conveyor Driving Transmission Track Timing Roller Chain  China wholesaler Saw Engine Motorcycle Bicycle Sprocket Conveyor Driving Transmission Track Timing Roller Chain
editor by CX 2023-11-08

China OEM Gearbox Transmission Belt Parts Attachment Products 15 a Series Short Pitch Precision Simplex Roller Chains and Bush Chains for Agriculture

Product Description

A Series Short pitch Precision Simplex Roller Chains & Bush Chains

ISO/ANSI/ DIN
Chain No.
China
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

Tensile strength

Qmin
kN/lbf

Average tensile strength
Q0
kN
Weight per meter
q  
 kg/m
Lmax
mm
Lcmax
mm
15 *03C 4.7625 2.48 2.38 1.62 6.10 6.90 4.30 0.60 1.80/409 2.0 0.08

*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 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
Surface Treatment: Polishing
Samples:
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1 Meter(Min.Order)

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bush chain

How does a bush chain handle reverse rotations and backdrives?

A bush chain is designed to handle reverse rotations and backdrives effectively. Here’s how it works:

1. Non-Slip Design: Bush chains are typically constructed with interlocking link plates and precision-fitted bushings. This design ensures that the chain maintains a positive engagement with the sprockets, preventing slippage or disengagement during reverse rotations or backdrives.

2. Tooth Profile: The sprockets used with bush chains are designed with a specific tooth profile that helps in maintaining proper chain engagement even during reverse rotations. The tooth shape ensures a smooth transition of the chain from one tooth to another, minimizing the risk of skipping or jumping off the sprocket.

3. Backstop Mechanisms: In some applications where backdrives or reverse rotations are more common, additional backstop mechanisms may be employed. These mechanisms prevent the chain from moving in the undesired direction by utilizing devices such as one-way clutches or backstop sprockets.

4. Proper Chain Tension: Maintaining proper chain tension is crucial for reliable operation in reverse rotations and backdrives. Adequate tension ensures that the chain remains engaged with the sprockets and minimizes the possibility of slippage.

Overall, bush chains are designed to handle reverse rotations and backdrives without compromising their performance and reliability. However, it is important to consider the specific application requirements and consult with chain manufacturers or experts to ensure the selection of the appropriate bush chain design and components for the desired operating conditions.

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

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

Yes, bush chains are commonly used in high-load applications due to their robust design and ability to handle heavy loads. The construction of a bush chain allows it to transmit significant amounts of force and torque, making it suitable for demanding industrial applications.

Bush chains are designed with solid bushings and precision rollers that provide excellent load-carrying capacity. The bushings act as a bearing surface between the pins and the rollers, reducing friction and allowing for smooth rotation under high loads.

Furthermore, bush chains are available in various sizes and configurations to accommodate different load requirements. They are made from durable materials such as alloy steel or stainless steel, which further enhances their strength and load-bearing capabilities.

When selecting a bush chain for a high-load application, it is important to consider factors such as the anticipated load magnitude, operating conditions, and the desired safety margin. Proper lubrication and regular maintenance are also essential to ensure optimal performance and extend the service life of the bush chain in high-load applications.

Overall, bush chains are a reliable choice for transmitting high loads and are widely used in industries such as mining, construction, heavy machinery, and material handling.

China OEM Gearbox Transmission Belt Parts Attachment Products 15 a Series Short Pitch Precision Simplex Roller Chains and Bush Chains for Agriculture  China OEM Gearbox Transmission Belt Parts Attachment Products 15 a Series Short Pitch Precision Simplex Roller Chains and Bush Chains for Agriculture
editor by CX 2023-11-08

China Hot selling Wholesale Stainless Steel Bead Chain Necklace Ball Chain

Product Description

4.5mm stainless steel roller blinds chain weight metal ball chain

  • Very convenient to store,ball bead chain in a roll,and Ball Chains can be cut to any length you desire
  • Material: Stainless Steel,lead and nickle free,top quality
  • Perfect for DIY Necklace Bracelet Jewelry Findings such as DIY bead chain necklace,extender chain and curtains

 

Size 1.2mm to 12.0mm
Material 304 Stainless Steel
Color Silver
Connector With Connector or without Connector is both available.

FAQ:

1. Who are we?
We are based in ZHangZhoug, China, start from 2014,sell to Western Europe(50.00%),North America(20.00%),Mid East(20.00%),Eastern Europe(5.00%),South America(5.00%). There are total about 11-50 people in our office.

2. How can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3. What can you buy from us?
Metal Chain, Key ring & Key Chain, Hooks, Pins, Tags, clips, etc.

4. Why should you buy from us not from other suppliers?
1. Founded in 2008, focus on the manufacture and export of Plastic and Hardware products 2. Primary market: Europe, USA and Southeast Asia. 3. Good customer feedback, more than 50% reorder rate per year 4. Provide free samples before order

5. What service can we provide?
Accepted Delivery Terms: FOB, CIF, EXW, Express Delivery;
Accepted Payment Currency: USD, CNY, EUR;
Accepted Payment Type: T/T, L/C, D/P, D/A, PayPal, Western Union, Cash;
Language Spoken: English, Chinese.

Material: Stainless Steel
Plating: Polish
Pendant Shape: No
Samples:
US$ 1/Meter
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Customization:
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Can pitch chains be used in the automotive assembly line for power transmission?

Yes, pitch chains can be used in the automotive assembly line for power transmission. Pitch chains are commonly employed in various industrial applications, including automotive manufacturing and assembly processes, to efficiently transmit power between different components of the assembly line. Here’s how pitch chains are utilized in the automotive industry:

  • Power Transmission: In automotive assembly lines, pitch chains are used to transmit power from the main drive unit to various stations along the production line. This helps to synchronize the movement of different conveyor belts, robots, and machinery used in the assembly process.
  • Conveyor Systems: Pitch chains are integrated into conveyor systems to move vehicle components from one station to another during the assembly process. They help in smooth and controlled material handling, ensuring the right parts are in the right place at the right time.
  • Robotic Applications: Pitch chains are also utilized in robotic applications within the automotive assembly line. They are used to transfer power to robotic arms and end effectors, enabling precise and efficient handling of car parts during the manufacturing process.
  • Transfer of Heavy Loads: Automotive components can be heavy, and pitch chains are designed to handle the transfer of heavy loads without compromising on performance. They offer high tensile strength and wear resistance, making them suitable for demanding industrial environments.
  • High Efficiency: Pitch chains have minimal friction, which ensures a high level of power transmission efficiency in the automotive assembly line. This efficiency contributes to a smooth and uninterrupted production process.
  • Reliability and Durability: Automotive assembly lines operate continuously for long hours, and reliability is crucial. Pitch chains are known for their durability and longevity, ensuring consistent performance over extended periods.

Overall, pitch chains play a vital role in the automotive assembly line for power transmission and material handling, contributing to the efficient and streamlined production of vehicles.

China Hot selling Wholesale Stainless Steel Bead Chain Necklace Ball Chain  China Hot selling Wholesale Stainless Steel Bead Chain Necklace Ball Chain
editor by CX 2023-10-27

China manufacturer Stainless Steel 08bss-2 Duplex 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
08BSS-2 12.7-0-0. p. 211. Retrieved 17 May 2-0-0. p. 86. Retrieved 30 January 2015.
 Green 1996, pp. 2337-2361
 “ANSI G7 Standard Roller Chain – Tsubaki Europe”. Tsubaki Europe. Tsubakimoto Europe B.V. Retrieved 18 June 2.
External links
    Wikimedia Commons has media related to Roller chains.
The Complete Xihu (West Lake) Dis. to Chain
Categories: Chain drivesMechanical power transmissionMechanical power control
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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

 

 

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:
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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

Can a bush chain be used in vertical lifting applications?

Yes, bush chains can be used in vertical lifting applications. The design and construction of bush chains make them suitable for transmitting power and lifting heavy loads in a vertical direction. Bush chains are commonly used in various vertical lifting systems such as elevators, cranes, hoists, and material handling equipment.

When utilizing a bush chain for vertical lifting, several factors should be considered:

1. Load capacity: Determine the maximum load that the bush chain needs to support during the lifting operation. Select a bush chain with an appropriate load capacity to ensure it can handle the weight of the load.

2. Safety factors: Consider the safety requirements and regulations for vertical lifting applications. Ensure that the selected bush chain meets the necessary safety standards and has a sufficient factor of safety to handle the intended load.

3. Speed and acceleration: Evaluate the desired lifting speed and acceleration. Take into account the weight of the load, the distance to be lifted, and the required lifting time. Ensure that the bush chain is capable of safely lifting the load at the desired speed and acceleration.

4. Tensioning and alignment: Proper tensioning and alignment are crucial for the smooth and reliable operation of a bush chain in vertical lifting applications. Ensure that the bush chain is properly tensioned and aligned to prevent issues such as chain slack, skipping, or jamming.

5. Lubrication: Provide adequate lubrication to reduce friction and wear between the bush chain components. Lubrication helps to prolong the life of the chain and ensures smooth movement during the lifting operation. Select the appropriate lubrication method based on the application requirements and operating conditions.

It is important to consult the manufacturer’s guidelines and specifications when selecting and installing a bush chain for vertical lifting applications. Proper maintenance and regular inspections should also be conducted to ensure the safe and reliable operation of the bush chain in the vertical lifting system.

bush chain

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

Yes, bush chains are commonly used in high-load applications due to their robust design and ability to handle heavy loads. The construction of a bush chain allows it to transmit significant amounts of force and torque, making it suitable for demanding industrial applications.

Bush chains are designed with solid bushings and precision rollers that provide excellent load-carrying capacity. The bushings act as a bearing surface between the pins and the rollers, reducing friction and allowing for smooth rotation under high loads.

Furthermore, bush chains are available in various sizes and configurations to accommodate different load requirements. They are made from durable materials such as alloy steel or stainless steel, which further enhances their strength and load-bearing capabilities.

When selecting a bush chain for a high-load application, it is important to consider factors such as the anticipated load magnitude, operating conditions, and the desired safety margin. Proper lubrication and regular maintenance are also essential to ensure optimal performance and extend the service life of the bush chain in high-load applications.

Overall, bush chains are a reliable choice for transmitting high loads and are widely used in industries such as mining, construction, heavy machinery, and material handling.

China manufacturer Stainless Steel 08bss-2 Duplex Short Pitch Roller Chains and Bush Chain  China manufacturer Stainless Steel 08bss-2 Duplex Short Pitch Roller Chains and Bush Chain
editor by CX 2023-10-27

China manufacturer Ca550f19 Ca550f17 Ca550f13 Ca550h C/S/Ca Type Steel Agricultural Transmission Drive Conveyor Roller Chain

Product Description

CHOHO Chain No. P/mm h2/mm W/mm b1/mm     d4/mm 
CA550F19 41.40 20.20 79.40 19.80 10.30
CA550HDF5 41.40 20.20 102.10 19.05 10.
Abbreviation: CHOHO Industry.
 

   √ 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,JOHN DEERE,NEWHOLLAND, CLASS,AGCO,DEUTZFAHR,HONDA, KUBOTA etc.

Packaging Details: advanced packaging / convenience package / bulk package / Waterproof bag / PE Bag / Premium cardboard box / Regular cardboard Carton / Neutral Box / Wooden case / Steel Pallets or Customization

We are very close to the port of HangZhou, which saves a lot of logistics costs and transportation time!
 

We have our own logistics company and transportation department. If you need me to deliver goods to your warehouse or other ports in China, such as ZheJiang Port and ZheJiang Port, we can also do it!

*******************************************************
After years of quality practice, CHOHO has formed a unique quality culture and a quality management model that strategically achieves global chain system technology leaders in quality management.
*******************************************************

 
∞ Driven by quality culture and strategy
∞ Implementation of R&D,procurement, production and marketing
    Digital Quality Management of the Whole Value Chain Cycle
∞ Quality Synergy of the Whole Industry Chain
∞ Achievement chain system technology leader

    √ 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. 

CHOHO has been invited to participate in many international exhibitions around the world, including industrial exhibitions, agricultural exhibitions, motorcycle exhibitions, engine exhibitions, such as Hannover Messe, Bologna Fair, Canton Fair ,VIV ASIA and other world famous exhibitions!

COOPERATIVE CLIENT

Broad Customer Channels  Market Continues to Develop!

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

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, CHINAMFG 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.
 

Material: Alloy
Structure: Roller Chain
Surface Treatment: Polishing
Samples:
US$ 1.99/Meter
1 Meter(Min.Order)

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Customization:
Available

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

Can pitch chains be used in the power generation and energy sector?

Yes, pitch chains can be used in the power generation and energy sector for various applications. They are commonly employed in equipment and machinery used to generate, transmit, and distribute power. Some of the key uses of pitch chains in this sector include:

  • Power Transmission: Pitch chains are widely used for power transmission in various types of machinery, including turbines, generators, and motors. They efficiently transfer rotational motion and torque, allowing these machines to convert mechanical energy into electrical energy or vice versa.
  • Conveyor Systems: Conveyor systems are essential in power plants for transporting coal, biomass, and other fuels for energy generation. Pitch chains are commonly used in these conveyors to ensure smooth and reliable material handling.
  • Coal Handling: In coal-fired power plants, pitch chains are utilized in coal handling equipment, such as coal feeders and ash handling systems, to move and process coal efficiently.
  • Waste-to-Energy: Pitch chains are employed in waste-to-energy plants, where they play a crucial role in moving and processing waste materials for energy production.
  • Renewable Energy: Pitch chains are used in equipment related to renewable energy sources like wind turbines and solar trackers. They enable the efficient conversion of wind or solar energy into electrical power.

Pitch chains used in the power generation and energy sector are often designed to withstand demanding operating conditions, including high loads, dynamic forces, and varying temperatures. They are made of materials that provide excellent strength, wear resistance, and corrosion resistance to ensure reliable and long-lasting performance.

Regular inspection, lubrication, and maintenance are essential for ensuring the optimal performance and longevity of pitch chains in the power generation and energy sector. Proper care and attention to these components contribute to the overall efficiency and reliability of power generation systems.

China manufacturer Ca550f19 Ca550f17 Ca550f13 Ca550h C/S/Ca Type Steel Agricultural Transmission Drive Conveyor Roller Chain  China manufacturer Ca550f19 Ca550f17 Ca550f13 Ca550h C/S/Ca Type Steel Agricultural Transmission Drive Conveyor Roller Chain
editor by CX 2023-10-26

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:
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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 Hot selling Ca550f19 Ca550f17 Ca550f13 Ca550h C/S/Ca Type Steel Agricultural Transmission Drive Conveyor Roller Chain

Product Description

CHOHO Chain No. P/mm h2/mm W/mm b1/mm     d4/mm 
CA550F19 41.40 20.20 79.40 19.80 10.30
CA550HDF5 41.40 20.20 102.10 19.05 10.
Abbreviation: CHOHO Industry.
 

   √ 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,JOHN DEERE,NEWHOLLAND, CLASS,AGCO,DEUTZFAHR,HONDA, KUBOTA etc.

Packaging Details: advanced packaging / convenience package / bulk package / Waterproof bag / PE Bag / Premium cardboard box / Regular cardboard Carton / Neutral Box / Wooden case / Steel Pallets or Customization

We are very close to the port of HangZhou, which saves a lot of logistics costs and transportation time!
 

We have our own logistics company and transportation department. If you need me to deliver goods to your warehouse or other ports in China, such as ZheJiang Port and ZheJiang Port, we can also do it!

*******************************************************
After years of quality practice, CHOHO has formed a unique quality culture and a quality management model that strategically achieves global chain system technology leaders in quality management.
*******************************************************

 
∞ Driven by quality culture and strategy
∞ Implementation of R&D,procurement, production and marketing
    Digital Quality Management of the Whole Value Chain Cycle
∞ Quality Synergy of the Whole Industry Chain
∞ Achievement chain system technology leader

    √ 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. 

CHOHO has been invited to participate in many international exhibitions around the world, including industrial exhibitions, agricultural exhibitions, motorcycle exhibitions, engine exhibitions, such as Hannover Messe, Bologna Fair, Canton Fair ,VIV ASIA and other world famous exhibitions!

COOPERATIVE CLIENT

Broad Customer Channels  Market Continues to Develop!

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

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, CHINAMFG 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.
 

Material: Alloy
Structure: Roller Chain
Surface Treatment: Polishing
Samples:
US$ 1.99/Meter
1 Meter(Min.Order)

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Customization:
Available

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Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

Can steel chains handle heavy loads and high-torque applications?

Yes, steel chains are well-suited for handling heavy loads and high-torque applications in industrial settings. Their robust construction and high tensile strength allow them to withstand substantial forces without deformation or failure. When it comes to heavy loads, steel chains are designed to distribute the weight evenly across the links and rollers, ensuring that the load is well-supported and stable during the material handling process. The chain’s strength prevents elongation or stretching, even under significant weight, maintaining the desired pitch and overall performance. In high-torque applications, where substantial rotational force is applied to the chain, steel chains excel due to their ability to handle the stress and transmit power efficiently. They are commonly used in power transmission systems to transfer torque from one component to another with minimal energy loss. The precise engineering and heat treatment of steel chains enable them to operate reliably under heavy loads and high-torque conditions. Additionally, proper lubrication further enhances their performance and reduces wear, allowing them to maintain their efficiency and longevity even in demanding applications. It’s essential to select the appropriate type and size of steel chain based on the specific requirements of the application to ensure optimal performance and safety. Regular maintenance, including lubrication and inspection, is also crucial to prolong the service life and maintain the chain’s effectiveness in handling heavy loads and high-torque tasks.

China Hot selling Ca550f19 Ca550f17 Ca550f13 Ca550h C/S/Ca Type Steel Agricultural Transmission Drive Conveyor Roller Chain  China Hot selling Ca550f19 Ca550f17 Ca550f13 Ca550h C/S/Ca Type Steel Agricultural Transmission Drive Conveyor Roller Chain
editor by CX 2023-10-25

China Good quality Chain Gear and General Hardware 10b-2 B Series Short Pitch Precision Duplex Conveyor Roller Chains and Bush Chains for Steel/Sugar Mill

Product Description

B Series Short pitch Precision Duplex Roller Chains & Bush Chains

ISO/DIN
Chain No.
Pitch

P
mm

Roller diameter

d1max
mm

Width
between inner plates
b1min
mm
Pin diameter

d2 max
mm

Pin length Inner
plate depth
h2max
mm
Plate thickness

t/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
10B-2 15.875 10.16 9.65 5.08 36.1 37.5 14.70 1.70 16.59 44.5/10114 56.2 1.84

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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Customized Request

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 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

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 Good quality Chain Gear and General Hardware 10b-2 B Series Short Pitch Precision Duplex Conveyor Roller Chains and Bush Chains for Steel/Sugar Mill  China Good quality Chain Gear and General Hardware 10b-2 B Series Short Pitch Precision Duplex Conveyor Roller Chains and Bush Chains for Steel/Sugar Mill
editor by CX 2023-10-25