Heavy Duty Series Simplex Roller Chains & Bush Chains
between inner plates
*Bush chain:d1 in the table indicates the external diameter of the bush
Heavy Duty Series Duplex Roller Chains & Bush Chains
|Width between inner plates
|Pin length||Inner plate depth
|Average tensile strength
|Weight per meter
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.
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 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
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.
Starmachinechina is a leading global chain drive product supplier with the widest product range. We have 5 state-of-the-art production bases and regional distribution centers and workshops in France, Germany, Netherlands, Thailand, UK, Hungary and the USA. We has built a network of global design, R&D, manufacturing, sales and market service. We have provided over 12,000 varieties
of chains for the global market.
We concentrate on providing high quality products and convenient local service.
Q:Why choose us ?
A. we are a manufacturer, we have manufactured valve for over 20 years .
B. Reliable Quality Assurance System;
C. Cutting-Edge Computer-Controlled CNC Machines;
D. Bespoke Solutions from Highly Experienced Specialists;
E. Customization and OEM Available for Specific Application;
F. Extensive Inventory of Spare Parts and Accessories;
G. Well-Developed CHINAMFG Marketing Network;
H. Efficient After-Sale Service System
Q. what is your payment term?
A: 30% TT deposit, 70% balance T/T before shipping.
Q:Can we print our logo on your products?
A: yes, we offer OEM/ODM service, we support the customized logo, size, package,etc.
Q: Can you make chains according to my CAD drawings?
A: Yes. Besides the regular standard chains, we produce non-standard and custom-design products to meet the specific technical requirements. In reality, a sizable portion of our production capacity is assigned to make non-standard products.
Q: what is your main market?
A: North America, South America, Eastern Europe, Western Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia,
Q: Can I get samples from your factory?
A: Yes, Samples can be provided.
Q: If products have some quality problem, how would you deal with?
A: We will responsible for all the quality problems.
|Standard or Nonstandard:||Standard|
|Application:||Textile Machinery, Garment Machinery, Conveyer Equipment, Packaging Machinery, Electric Cars, Motorcycle, Food Machinery, Marine, Mining Equipment, Agricultural Machinery, Car|
|Type:||Short Pitch 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.
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:
– 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.
– 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.
What are the different types of bush chains available?
There are several types of bush chains available, each designed to meet specific application requirements. Here are some common types:
1. Standard Bush Chains: These chains have a simple construction with bushings and rollers. They are commonly used in general industrial applications that require moderate load capacity and speed.
2. Heavy-Duty Bush Chains: These chains are designed for applications that involve high loads, such as heavy machinery or equipment. They have a robust construction with thicker plates and larger diameter bushings to withstand the increased demands.
3. Extended Pitch Bush Chains: These chains have a larger pitch than standard chains, providing more space between each link. They are often used in applications that require conveying large or irregularly shaped objects, such as in material handling or packaging industries.
4. Double-Pitch Bush Chains: These chains have double the pitch of standard chains, allowing for longer spans between sprockets. They are commonly used in applications that require longer conveying distances or lower-speed operation.
5. Stainless Steel Bush Chains: These chains are made from stainless steel material, offering excellent corrosion resistance. They are suitable for applications in corrosive environments or industries with strict hygiene requirements, such as food processing or pharmaceutical manufacturing.
6. Self-Lubricating Bush Chains: These chains incorporate special materials or coatings that provide self-lubrication properties. They eliminate the need for external lubrication and reduce maintenance requirements. Self-lubricating bush chains are ideal for applications where regular lubrication is challenging or impractical.
7. Specialty Bush Chains: There are also specialty bush chains available for specific applications. These may include high-temperature chains, flame-resistant chains, or chains with specialized coatings for specific industries or environments.
When selecting a bush chain, consider the specific requirements of your application, such as load capacity, speed, environmental conditions, and maintenance needs. Consult with a supplier or engineer to determine the most suitable type of bush chain for your application.
editor by CX 2023-09-22