ANSI Roller Chain

Wolff Chain Drive: Your Professional ANSI Roller Chain Manufacturer!

Qingdao Wolff Chain Drive Co.Ltd. is located in the industrial zone of the city, covering an area of about 10,000 square meters. Our factory has multiple workshops, which are used for different production links and product manufacturing. We continue to innovate, develop new products, meet all customer requirements, and have stable delivery times.

Our Advantages

Rich Experience & Production Market

Our company has a production history of more than 30 years, and our products have won unanimous praise from customers. Wolff chains are popular in Domestic and foreign markets such as the United States, South America, Europe, the Middle East, Southeast Asia and Africa markets.

Quality Control

Our products are produced and inspected strictly in accordance with GB, AISI, ASTM, API, JIS, BS so as to control and safeguard the quality of products. We adopt strict testing standards and processes to ensure that our products meet international standards and customer requirements. We have a professional quality inspection team to conduct comprehensive inspection and testing of each production batch.

Advanced Equipment

Our factory is equipped with advanced production equipment and technology, including automated production lines, CNC machine tools, laser cutting machines, etc. These equipment can efficiently complete the manufacturing and processing of products and improve production efficiency.

High Quality Product

All our products fully comply with international standards such as ISO\DIN\ANSI\BS\JIS. Wolff has successfully passed ISO9001 quality management system, SGS inspection and BV inspection certification.

Simplex Roller Chain
Simplex roller chain is a chain form consisting of a series of rollers and link plates. Roller chains are often used to transmit power or carry heavy loads. The rollers on the chain mesh with the...
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Duplex Roller Chain
The duplex roller chain offers a combination of high strength, high fatigue resistance, and long lifespan, making it a reliable and durable option for a variety of applications.
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Triplex Roller Chain
A triplex roller chain is a type of roller chain that consists of three rows of chain links in parallel. Each link has small rollers that rotate freely and engage with the teeth of a sprocket,...
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Leaf Chains
Leaf chains are a type of transmission chain drive that consists of interlocking metal plates resembling the shape of a leaf. These chains are commonly used in various industrial applications,...
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AL Series Leaf Chain
The AL Series Leaf Chain is a type of roller chain designed for heavy-duty lifting and conveying applications. Made from high-quality alloy steel, the AL Series Leaf Chain is known for its...
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BL Series Leaf Chain
BL Series Leaf Chain is a type of roller chain that is commonly used in material handling applications. It is designed to handle heavy loads and provide reliable performance in demanding environments.
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Single Strand Roller Chains
Single strand roller chains, also known as simplex roller chains, are widely used in various industrial applications for transmitting mechanical power efficiently. They consist of a series of...
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Introduction to ANSI Roller Chain

ANSI roller chain refers to the roller chains that meet ANSI standard. ANSI or American National Standards Institute Roller chains are used for the transmission of mechanical power on industrial and agricultural machinery such as Conveyor systems. These are available in: Simplex, Duplex and Triplex.

Components of ANSI Roller Chain

Link Plates

Link plates serve as the foundation of a roller chain. These flat metal plates connect various chain links together, forming a continuous loop structure. The robustness and integrity of link plates are crucial to the overall strength and performance of the chain.

Rollers

Integral to the functionality of a roller chain, rollers are cylindrical components that reside between the link plates. These rollers ensure smooth rotation and reduce friction during operation, enhancing the efficiency and lifespan of the chain.

Bushings

Bushings are cylindrical metal sleeves that accommodate the pins within the roller chain. By providing a low-friction surface for the pin rotation, bushings contribute to the overall strength and longevity of the chain.

Pins

Pins act as the primary connecting elements within a roller chain. They fit through the bushings and link plates, securing the chain's structure and allowing it to transmit power effectively. The pins play a vital role in maintaining the integrity and functionality of the chain.

Types of ANSI Roller Chain

Standard Roller Chains

These chains are the most commonly used type of roller chain and are used in various mechanical applications, including automobiles, motorcycles, and industrial machinery.

Heavy-Duty Roller Chains

These chains are designed for heavy-duty applications that require high strength and durability. They are used in construction equipment, mining machinery, and other industrial applications.

Double-Pitch Roller Chains

These chains have twice the pitch of standard roller chains and are used in applications that require longer chain lengths and slower operating speeds.

Silent Chains

These chains are designed to operate with minimal noise and vibration and are used in high-speed applications such as printing presses and conveyor systems.

Advantages of ANSI Roller Chain

High Efficiency
ANSI roller chains are designed with minimal friction, resulting in high power transmission efficiency. This efficiency is crucial in applications where energy conservation is essential, as it reduces power losses and improves overall system performance.

Robust and Durable
ANSI roller chains are built to withstand heavy loads and harsh operating conditions. The construction typically involves durable materials, such as high-grade alloy steel, which provides excellent resistance to wear, fatigue, and corrosion. As a result, roller chains have a long operational life, reducing maintenance requirements and downtime.

Cost-Effective
Compared to some alternative power transmission methods, ANSI roller chains are relatively cost-effective. Their straightforward design and manufacturing process make them an affordable option for a wide range of applications, making them ideal for both small-scale and large-scale projects.

Wide Range of Sizes and Configurations
ANSI roller chains are available in various sizes and configurations to suit different power transmission needs. This adaptability allows engineers and designers to select the appropriate chain size and pitch for specific applications, ensuring optimal performance and safety.

Simple Installation and Maintenance
Installing and maintaining ANSI roller chains is relatively straight forward. Once properly installed and adequately lubricated, they require minimal attention during operation. Routine maintenance involves periodic lubrication and inspection for signs of wear, making them convenient for operators and maintenance personnel.

Shock Absorption
ANSI roller chains have a certain amount of flexibility, which enables them to absorb shocks and vibrations during operation. This feature is particularly useful in applications where sudden load changes or uneven forces may occur.

Versatility
ANSI roller chains can be used in a wide variety of applications, including conveyor systems, industrial machinery, agricultural equipment, motorcycles, and bicycles, among others. Their versatility stems from their ability to handle different load capacities and accommodate diverse environments.

Compact Design
ANSI roller chains have a compact and lightweight design, making them suitable for applications with limited space constraints. Their small footprint allows for efficient integration into various machines and systems.

High Speed Capability
ANSI roller chains can handle high rotational speeds effectively, making them suitable for applications requiring fast and precise motion transmission.

Global Availability
Due to their widespread use and popularity, ANSI roller chains and their components are readily available worldwide. This accessibility simplifies sourcing, replacement, and maintenance, regardless of the location of the equipment.

Installation Of ANSI Roller Chain

Non Standard Stainless Steel Roller Chain

Speed Ratio and Chain Lap

The speed ratio of ANSI Roller Chain can range up to 7:1 under normal conditions.
However, a speed ratio of 10:1 is possible if the required speed is very slow.
Chain lap on the small sprocket must be at least 120 degrees.

Distance Between Shafts

Optimum distance between sprockets is 30 to 50 times the pitch of the chain, except when there is a pulsating load. In such cases, the distance can be up to 20 times the pitch of the chain.

Layout

When arranging the roller chain drive, the centerline of both sprockets should be as close to horizontal as possible, though the angle of installation can be up to 60 degrees. If installation is close to vertical, slight chain elongation can cause the chain to easily slip off the sprockets. In this case, an idler or guide stopper is recommended.
It is best to keep the angle of installation within 60 degrees. If the angle must be more than 60 degrees.

Roller Chain Tension

Initial tension for roller chain power transmission is not as critical as for belt transmission. Generally, roller chain is used with adequate slack. Slack on the lower side is most desirable.
If the chain is excessively tight, chain damage or rapid use of lubricant may result.
If the chain is too loose, damage due to vibration or chain winding may result.

Checkpoints of ANSI Roller Chain

Lubrication
While the chain is in operation, check that the lubricating oil moves toward the link plates and that the chain or rotating disc is immersed in the oil bath. When the chain is stopped, check for dirt or abrasive particles produced by improper lubrication. When the chain is removed, the connecting link pin and the inside edge of the bushing should be checked. Damage or a red or reddish-brown color signal improper or insufficient lubrication.

Link Plate
Chain exposed to repeated loads over the allowable load can develop fatigue breaks in the link plate. Fatigue breaks are difficult to anticipate until they produce a crack.
Cracks usually develop at the edge of a hole or at the side of the link plate. Check link plates often for cracks to prevent accidents.

Roller Link
Care should be taken to avoid repeated impact loads over the allowable load as fatigue breaks may occur. The roller should be checked in the same way as the link plate. If foreign objects interfere with the engagement of the roller and sprocket, the roller may be damaged and a crack may develop. Chains damaged by fatigue breaks must be replaced.

Sprocket
Chain and sprocket engagement can be checked by observing the roller and sprocket tooth surfaces. Installation should also be checked. Normal margin position is slightly above the tooth bottom. If tension remains on the slack side, the roller will touch the tooth bottom slightly. If an idler or tightener is used, the margin will be at the center of the tooth bottom.

Chain Elongation
Chain stretch is calculated as the total amount of elongation caused by wear on the pin and bushing, not including deformation of the link plate. Measuring chain elongation can help estimate the remaining life of the chain.

FAQ

Q: What is the ANSI standard for roller chain?

A: Roller chain is made in several sizes, the most common American National Standards Institute (ANSI) standards being 40, 50, 60, and 80. The first digits 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.

Q: What is a duplex ANSI roller chain?

A: A duplex ANSI roller chain is one that has a separate row of plates that provides the same number of teeth slots for sprockets that runs parallel to the other two rows of plates in a simplex model; it also has pins and roller bearings in between. There is yet another row of plates on the triplex variants, making four plates in total with enough space to fit three sprockets.

Q: What is a double-strand roller chain?

A: These types of roller chains are also known as duplex roller chains in the industry. The double-strand roller chain is made up of two roller chain strains manufactured together. One of the benefits of using a double-strand roller chain is that it boasts a ton of power but with a fairly small factor for form. After all, the purpose of this type of chain — and other roller chains — is to transmit energy at as high of a degree as possible to be efficient.

Q: What are the advantages of ANSI roller chain?

A: Wide application range as drive, conveyor and hoisting chains.
Miscellaneous functions by means of attachments on special chains.
Robustness to temperature influences and soiling.
Positive-locking transmission without slip.
Cost effectiveness.
Excellent application range due to different chain sizes, simplex and multiplex chains.
Manifold transmission ratios.
Long shaft distances possible, e.g. For conveyance systems.
Life cycle limit indicated by chain elongation.
Problem-free shortening and lengthening of chains.
Drive possible on either side.
No pre-tensioning required = low static bearing load.

Q: What should be paid attention to when using ANSI roller chain?

A: Corrosion-enhanced Wear: A film of lubrication helps chain avoid rust by protecting it from moisture. When exposed to wet or other mildly corrosive environments, specialty chain coated with layers of corrosion-resisting elements can be utilized to defend against rust and premature elongation.
Sprocket Alignment: If sprockets are angled relative to each other or not on the same plane, extra forces on the chain may increase wear rate considerably.
Over-tensioning: Tightening a chain more than necessary in an application directly affects the rate of wear. In a typical drive application, there is slack on the return side.
Incorrect Chain Size: An improperly selected chain size will not have the capacity to transfer the target load, resulting in accelerated wear. Please verify chain selection in manufacturer catalogs.

Q: What is ANSI leaf chain?

A: ANSI Leaf Chain is the most simple of steel chains, consisting only of link plates and pins. This chain generally has greater tensile strength than roller chains and runs over sheaves rather than sprockets. They are suitable for hanging, balancing or motion transmitting applications. Leaf chains are often used as counterweight chains for machine tools, elevator and oven doors, fork lift truck masts, spinning frames and similar lifting or balancing applications.

Q: What are the types of ANSI leaf chain?

A: There are three main types of leaf chain series.
AL series have the same plate thickness and pin diameter as the ANSI standard roller chain of same pitch.
E.g., under the same pitch of 1/2”, ANSI 40 and AL4 have the same plate thickness and pin diameter.
AL series are commonly used for light load application.
BL (LH) series is constructed of thicker plates and larger pins than AL series of the same pitch.
The plate thickness and pin diameter are the same as the ANSI standard roller chain with a pitch one size larger.
E.g., BL4 has the pitch 1/2” which is same as the ANSI 40 but the plate thickness and pin diameter are the same as the ANSI 50.
BL series are commonly used for heavy load application.
LL (EL) series are made to ISO standards so they have the same plate thickness and pin diameter as the British standard roller chain.
E.g., under the same pitch of 5/8”, 10B and LL10(EL5) have the same plate thickness and pin diameter.
LL(EL) series are commonly used for light load application.

Q: What are the applications of ANSI leaf chain?

A: Agricultural leaf chain is used for agricultural applications.
Conveyor leaf chain is specially designed for use in conveyor applications. This category includes roller chains with special attachments, flat-top leaf chains, and silent chains.
Engineering steel leaf chains are manufactured from machined and fabricated steel. This type of leaf chain can be used for a variety of industrial applications.
Oil field leaf chains are heavy-duty chains that are tested according to American Petroleum Institute (API) guidelines.
Power transmission leaf chains are used in power transmission drive applications.

Q: What are the key features of ANSI Standard Attachment Chain?

A: Due to the small pitch of these chains, the drive design is smaller.
Usually sprockets with a large number of teeth are used. The chain speed does not vary significantly as the chain engages with sprockets. With less impact, there is also less noise generated as a result of the impact between the roller and sprocket tooth.
These chains may be used for high speed conveyor applications.
A wide variety of standard and special attachments are available for this chain series.

Q: How to measure ANSI roller chain size for a sprocket?

A: Pitch
The pitch is the measurement from the center of one pin to the center of the next on a chain. ANSI measures chain pitch in 1/8-inch increments. The pitch helps determine the overall weight and strength of your roller chain.
Plate Height
Next, you’ll need to measure the height of the plate. You can either measure the inside or outside of the plate — both should be the same height. If they differ, it may indicate that you have a non-standard chain, in which case you’ll need to notify the manufacturer of both sizes when you place your order.
Plate Thickness
When you measure the thickness of the plate, it’s best to measure both the inside and outside. Some ISO and DIN roller chains have different thicknesses on the outside and inside of the plates. Heavy-duty chains will have thicker sides to increase the strength of the chain without having to go up a chain size.
Roller Chain Pin Diameter
It’s essential to measure the diameter of the pin because some roller chains use non-standard pins. This plays an important role in the chain that you choose.
Roller Diameter
This measurement is the thickness of the cylinder. You’ll need to slide the caliper along the sides of the roller to determine the diameter. Some roller chains actually do not have rollers. When you measure a roller-less chain, use the bushing diameter. Make sure to note that your chain is roller-less when you place your order.
Roller Width
The roller is the width of the cylindrical part that lies between the two plates which the pin goes through. Use the caliper to measure the length of the caliper from both ends to get the width. If you have a roller-less chain, measure the inside width of the inner side plates.

Q: What parts does the dimension of ANSI roller chain include?

A: The ANSI standard for roller chains specifies the dimensions of various components of the chain, including the pitch, roller diameter, and width of the link plates. The pitch of a chain refers to the distance between the centers of two adjacent pins. The standard specifies the pitch for each size of chain and ensures that the pitch is consistent throughout the entire chain length. The roller diameter is the diameter of the rollers in the chain, which determines the maximum allowable torque and horsepower rating of the chain. The standard provides a range of roller diameters for each size of chain, which are based on the chain's design and intended usage.

Q: How do I determine the right ANSI roller chain size for my application?

A: To find the suitable ANSI roller chain size for your needs, consider key dimensions like pitch, roller width, roller diameter, overall width, plate height, plate thickness, and pin diameter. Additionally, factor in the tensile strength requirements for your specific application. If you’re unsure about sizing, we provide an online guide and expert support to help you choose the correct chain for your project.

Q: What is an ANSI 40 roller chain, and where is it used?

A: An ANSI 40 roller chain is a type of chain commonly utilized in various industries, including domestic, industrial, and agricultural sectors. It plays a crucial role in machinery by efficiently transferring energy between parts during processes such as gear shifting. You’ll find roller chains in conveyors, wire-drawing machines, printing presses, vehicles, and even bicycles.

As one of the leading ansi roller chain manufacturers and suppliers in China, we warmly welcome you to wholesale cheap ansi roller chain from our factory. All customized products are with high quality and low price. Contact us for quotation.

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