Roller Chain Links

Wolff Chain Drive: Your Professional Roller Chain Links 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.

Offset Link Drive Chains
Offset Link Drive Chains are chain connection method commonly found in roller chain transmission systems. It consists of two roller chain joints to realize chain connection and power transmission.
read more
Offset Link for Chain
Offset link for chain is a mechanical transmission device that usually consists of a chain and a connecting rod. A chain is a series of interconnected links used to transmit power or motion. The...
read more
Roller Chain Offset Link
A roller chain offset link is a type of link used in roller chains to connect two ends of a chain together. It is called an "offset" link because it has a slightly different design compared to the...
read more
Industrial Chain Links
Industrial Chain Links also called a chain connector, mechanical part used to connect chains. Chain joints usually consist of two nested parts that are held together by bolts, nuts, or other...
read more
Roller Chain Connecting Link
A roller chain connecting link is a type of mechanical fastener used to connect two ends of a roller chain. Roller chains are commonly used in machinery and power transmission systems to transmit...
read more

Introduction to Roller Chain Links

Roller chain links are individual links that are added to an existing chain to replace a worn link or to extend the length of the chain.

Types of Roller Chain Links

Roller Chain Connecting Link

Roller Chain connecting links are also commonly known as master links. These links are designed to assemble and dis-assemble using a spring clip or cotter pin. There is a comprehensive selection of master links for single and double pitch roller chains, compatible with both North American ANSI and metric standards, encompassing all sizes of chain from #25 and 03B to #240 and 56B.

Roller Chain Offset Link

Roller chain offset links are used for making repairs and for adjusting the length of a roller chain. They are also commonly known as half links because when assembled they only add half of a pitch. A standard offset link consists of on roller, one bushing, one pin with a cotter, and two offset side plates to hold everything in.

Roller Chain Roller Link

Roller links are the inside links of roller chain, because of this they are also typically known as "inside links". A roller link consists of two bushings, two rollers, and two inside plates that are pressed on to hold everything together. There are few exceptions to this design like roller-less bushed chains such as #25 & #35 ANSI standard roller chains, these types of roller links only consist of two bushing with two inside plates.

Installation of Roller Chain Link

Line Up the Chain Ends

Make sure your chain length is correct. Line up the ends of the roller chain so the pins of the master link can be inserted. Notice that the chain ends are placed on the sprocket so this automatically happens! This makes for an easy installation of the master link pins.

Install the Master Link Spring Clip

Orient the master link spring clip so the open end trails the closed end. In other words, the closed end of the clip needs to be at the head of the chain travel when the sprocket is moving your go kart forward.
Once you have the master link spring clip lined up, use a flat head screwdriver to push the clip into the grooves in the pins. You will know when it seats in the grooves when you hear a ‘click’ as it snaps into place.

Install the Plate with Pins

The master link plate with pins is inserted so the grooves in the pins are facing outward. The reason why you want the pins to face outward, is so that you can access it easily for this installation, as well as any future disassembly.

Install the Other Plate

The plate without pins is inserted over the pins of the master link. Make sure you can see the grooves of the pins so that the spring clip can be installed correctly.

How to Count Roller Chain Link

01/

Understand the Chain Anatomy
Before counting the links, it is crucial to familiarize yourself with the basic structure of a chain. A standard chain is composed of a series of inner and outer plates joined together by connecting pins. Each link consists of an inner plate, an outer plate, and a connecting pin in between them.

02/

Establish a Reference Point
To accurately count the links, you need to identify the reference points. Start by locating one end of the chain and choose a reference point, such as the first inner plate or outer plate. For more accurate counting, you can mark that specific point. You can use a grease pen for marking.

03/

Start Counting Links
With the reference point established, start counting by moving in one direction (usually towards the opposite end of the chain). Each complete link consists of one inner plate, one outer plate, and the connecting pin between them.

04/

Double-Check Your Count
To ensure accuracy, it is advisable to count the links twice independently. This double-checking process helps eliminate any errors or discrepancies that may arise during the initial count. Consistency in your counts is crucial for accurate chain measurements.

05/

Notice the Half-Links
In some cases, especially with bicycles or specialized chains, you may encounter half-links. These are unique chain links that allow for more precise chain length adjustments.

06/

Record the Link Count
Once you have reliably counted the links in the chain, record the number for your reference. This count can serve various purposes, including chain replacement, sizing, or ongoing maintenance.

How to Take Roller Chain Links Out of Roller Chain

Gather Tools
To successfully remove links from a roller chain, you will need the following tools:
● Roller Chain Breaker Tool: This special tool will help you gently push out the chain pins.
● Wrench: Choose a wrench that fits the nuts that hold the chain to the machine.
● Safety equipment: Wear gloves and goggles to protect yourself throughout the process.

Positioning
Before proceeding, make sure the machinery attached to the roller chain is turned off and the chain is cool enough to operate. Use a wrench to loosen and remove the nuts holding the chain in place, allowing it to hang freely.

Identify Connection Links
Each roller chain has a connecting link, also known as a master link, that has a clip or retaining plate. Find this link by examining the chain and identifying the unique connector design.

Break the Chain
Place the roller chain breaker tool on the connecting link so that the tool’s pins line up with the chain’s pins. Slowly rotate the handle or press down on the tool until the pin begins to push out. Continue to apply pressure until the pin is pushed out all the way, separating the roller chain.

Remove the Link
After the chain is separated, carefully slide the connecting link off the roller chain. This will result in open ends on the chain, which can be reattached after removing the required number of links.

Remove Unwanted Links
Calculate the number of links that need to be removed for the intended purpose. Using the roller chain breaker tool again, line up its pin with the pin of the selected link. Apply pressure slowly until the pin is partially pushed out. Repeat this step on the other side of the same link until the pin is fully pushed out.

Detach Links
Once the pin is fully pushed out, separate the required number of links from the rest of the chain. Put those links aside and make sure to put them away safely to avoid losing any important components.

Reattach the Chain
After removing the required number of links, the roller chain can be reattached. Take out the open end of the chain and the connecting link you removed earlier. Align the pins connecting the links with the corresponding holes in the roller chain, securing the position of the retaining plate or clip (if applicable).

Locking the Chain
To secure the connecting link in place, push the pin back through the chain hole. Make sure the pins are properly aligned and protrude evenly from both sides. For clip-type connecting rods, insert and hold the clip in the correct position.

Secure the Chain
Once the chain is back in place, use a wrench to tighten the nuts and secure the roller chain to the machine. Make sure the chain is properly tensioned and aligned to avoid any potential problems during operation.

FAQ

Q: What is a roller chain offset link?

A: Offset links, also known as ½ links or crank links, are used to make a chain an odd number of pitches in length, often used to shorten a chain by one pitch. Offset links are available in two different configurations.
Sigle-pitch offset links, slip-fit type, are furnished with a slip-fit pin unassembled in the linkplates. A flat is milled on one end of the pin preventing it from turning in the linkplate once installed.
Two-pitch offset links, press-fit type, are an offset link and a roller link assembled together. The press-fit construction of this assembly greatly increases its structural rigidity, reliability, and durability. For these reasons, the two-pitch offset assembly is recommended in preference to the single-pitch offset. However, due to the reduction in the chain’s working capacity, offset links, of either type, are not recommended in performance oriented drives.

Q: What is a roller chain connecting link used for and what is its impact on the chain’s load capacity?

A: Connecting links are used to join the two ends of the chain together and are provided in two different configurations, depending on the application.
Slip-fit links, the most common and most popular, are provided for general chain applications and allow the easy slip fit assembly of the cover plate over the pin ends. This slip-fit construction does not have the same integrity found in the assembled chain and can reduce the chain’s working load capacity by as much as 30%.
Press-fit connecting links are provided when the integrity of the connecting link needs to be equal to that of the base chain. This design uses pitch holes in the cover plate that are smaller than the chain pins, requiring the user to press the cover plate onto the pins before installing the spring clip or cotter. While more difficult to install, this type of connection provides the greatest load carrying capability.

Q: What is a master link?

A: A master link or quick-release link is a roller chain accessory that allows convenient connection and disconnection of a chain without the need for a chain tool. It acts as a set of the chain's outer plates, so joining two sets of the chain's inner plate ends.

Q: How to install a chain master link clip?

A: Align the roller chain ends on the sprocket.
Install the plate and pin assembly. Push the assembly through both ends of the roller chain. Install the assembly so the grooved ends of the pins face outward.
Install the master link plate. The non-pin plate will go on the outside of the master link assembly.
Install the spring clip. First make sure the closed end of the spring clip will be at the head of chain travel, and the open end of the clip will trail the head end. Place the spring clip over the grooves in the pins, then use a flat head screwdriver to push the clip into place. You will hear a click when it snaps into place.

Q: How to install a roller chain offset link?

A: To install a roller chain offset link, follow these steps:
Remove the cotter pin from the offset link.
Separate the two side plates of the offset link.
Position the offset link in the roller chain, with the offset side plates on the same side as the offset side plates of the surrounding links.
Slide the pin through the offset link and the surrounding links.
Insert the cotter pin through the hole in the pin and bend the ends of the cotter pin to secure it. The cotter pin ends should never ben bent past the height of the plate.

Q: When to use roller chain offset links?

A: Offset links should only be used when necessary. If possible, it is best to design your application to avoid the use of offset links. However, there are some applications where offset links are necessary due to space limitations.
If you do need to use offset links, be sure to use the correct size and type of offset links for your application. You should also inspect the offset links regularly for signs of wear and tear.

Q: How to measure roller chain link size?

A: Measuring roller chain link size doesn't have to be difficult. All you need is an understanding of a few simple concepts, and you will quickly be able to determine the size of the chain that you need for your project. Roller chains come in a variety of sizes and thicknesses. The number of strands on your roller chain may also vary, making it important to understand exactly how to measure your chain link size. You'll be looking for the:
Overall width of the chain.
The diameter and width of the roller.
The thickness of the plate.
Overall height of the chain.

Q: Can you depict the basic operation of assembling a master link?

A: Place the loose outer plate onto the two pins pressed into the other outer plate.
Ensure the outer plate is inserted onto the pins far enough that the grooves on the pins are fully exposed past the outer plate.
Align the widest gap near the middle of the clip with one of the pins.
The gap in the clip should allow the clip to slip over the pin and sit flush against the outer plate and aligned with the groove in the pins.
Use pliers or another tool to slide the clip towards the other pin until the clip is securely engaged with the grooves on both pins.

Q: Do connecting links or offset links in a chain reduce its tensile strength? Do they reduce a chain’s effective wear life?

A: Connecting links typically are supplied with a slip fit condition between the sideplate and the pin. This slip fit condition will effectively reduce the allowable load of the chain up to 15% versus its maximum. If your application is one that is one running near the upper limit of the chain’s maximum allowable load, consider using a press fit or semi-press fit style connecting link. The same condition exists with a slip fit, single offset link. Try to avoid using a strand of chain with multiple slip fit connecting links and offset links in it.

Q: What is the manufacturing process of roller chain link plate?

A: The manufacturing of link plate of roller chain is done by blanking and piercing operation which gives rough surface finish on sheared surface. The hole of the link plate is most critical area as all the load is coming on this part of the link plate. As the area come in contact with the pin and hole reduces there are chances of shear failure, so there is need to improve the surface finish of sheared hole. And this is achieved by performing secondary operations like shaving, reaming and grinding. This adds extra manufacturing cost and time.

Q: What are different types of connecting pin links?

A: Connecting pin links are used to join two ends of a roller chain together. These connecting pin links consist of an outer plate which is fitted with two pins that slot inside the adjacent roller link bushes and a connecting plate which is fitted separately. These connecting pin links are available in three types:
Spring Clip Type - The connecting plate is secured using a clip that slides across the end and slots into grooves that are cut into the end of the pin.
Cotter/Split Pin Type - The connecting plate is secured by inserting a cotter pin (or split pin) through the end of each connecting pin. These two methods provide a 'clearance' fit where there is always a clearance formed between the pin and the hole when assembled.
Press-fit Type - The connecting plate is press fitted on to the pins and secured by a cotter pin or split pin. This type of connecting link is the standard connecting link for ANSI series detachable chains and can also be used on riveted chains which are used in high speed or tough applications. This method provides an interference fit where there is friction or interference when the pin is inserted into the hole.

Q: What is the difference between a pin link and a roller link?

A: A pin link consists of the two side plates connected by two tightly fitted pins. A roller link consists of two side plates connected by two tightly fitted bushings on which hardened steel rollers are free to rotate.

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

Double Strand Heavy Chains,