Industrial chain links

Industrial chain links DEFAULT

Chains, Links, Sprockets & Platewheels

Here at Simply Bearings we have a huge range of roller chains, roller chain links and sprockets in stock, so you can be sure of obtaining exactly the kind you need.

They are available in both metric and imperial measurements, with a pitch in sizes between 9.53mm and 38.1mm or 3/8 inch to 1 1/2 inches in a range of British Standard Simplex, Duplex and Triplex roller chain sizes.

We also carry simplex and duplex drive chains, with pitches between 9.53mm and 50.8mm or 3/8 inch to 2 inches, of European (BS) ANSI and DIN standards and in pre-packaged lengths from 5 feet to 200 metres.

Bearings and bushes on our chains are case hardened to permit articulations under high pressure.

We also stock a wide range of simplex inner steel chain links, simplex outer chain links, simplex chain spring links and several sizes of simplex chain link and a half.

If you have any problems when it comes to selecting the right kind of industrial chain, drive chain, sprocket or link, you're more than welcome to phone, email or fax our staff. You're also more than welcome to visit our trade counter if you happen to be in the area.

Or policy of bulk discount pricing means that the more of each item you purchase, the more you end up saving.

We accept payment in dollars (US and Australian), euros and sterling. Card payments are safe and secure, since we use a dedicated payment processing company and we have no access to your confidential card details.

Same-day despatch comes as standard, with the option of upgrading to Next Day delivery.

We ship international orders at cost price via courier or Royal Mail International Signed-For.



Series of connected links which are typically made of metal

For other uses, see Chain (disambiguation).

"🔗" redirects here. For other uses, see Link (disambiguation).

A common metal short-link chain

A chain is a serial assembly of connected pieces, called links, typically made of metal, with an overall character similar to that of a rope in that it is flexible and curved in compression but linear, rigid, and load-bearing in tension. A chain may consist of two or more links. Chains can be classified by their design, which can be dictated by their use:

  • Those designed for lifting, such as when used with a hoist; for pulling; or for securing, such as with a bicycle lock, have links that are torus shaped, which make the chain flexible in two dimensions (the fixed third dimension being a chain's length). Small chains serving as jewellery are a mostly decorative analogue of such types.
  • Those designed for transferring power in machines have links designed to mesh with the teeth of the sprockets of the machine, and are flexible in only one dimension. They are known as roller chains, though there are also non-roller chains such as block chain.

Two distinct chains can be connected using a quick link, carabiner, shackle, or clevis. Load can be transferred from a chain to another object by a chain stopper

Uses for chain[edit]

Uses for chain include:


  • Jewelry chain, many necklaces and bracelets are made out of small chains of gold and silver
  • Chain of office, collar or heavy gold chain worn as insignia of office or a mark of fealty in medieval Europe and the United Kingdom
  • Decorating clothing, some people wear wallets with chains connected to their belts, or pants decorated with chains
  • Omega chain, a pseudo-chain where the 'links' are mounted on a backing rather than being interlinked

Power transfer[edit]

  • Bicycle chain, transfers power from the pedals to the drive-wheel of a bicycle, thus propelling it. An application of roller chain.
  • Chain drive, the main feature that differentiated the safety bicycle[clarification needed]
  • Chain gun, type of machine gun that is driven by an external power source, sometimes connected by a chain, to actuate the mechanism rather than using recoil
  • Chain pumps, type of water pump where an endless chain has positioned on it circular discs[clarification needed]
  • Chainsaw, portable mechanical, motorized saw using a cutting chain to saw wood
  • Timing chain, used to transfer rotational position from the crankshaft to the valve and ignition system on an internal combustion engine, typically with a 2:1 speed reduction.

Security and restraint[edit]

  • Ball and chain, phrase that can refer to either the actual restraint device that was used to slow down prisoners, or a derogatory description of a person's significant other
  • Belly chain (or "waist chain"), a physical restraint worn by prisoners, consisting of a chain around the prisoner's waist, to which the prisoner's hands are chained or cuffed
  • Bicycle lock (or "Bicycle Chain"), lockable chain
  • Chain boom, large chains used to exclude warships from harbors and rivers
  • Chain link fencing, fencing that utilizes vertical wires that are bent in a zig zag fashion and linked to each other
  • Chain mail, a type of armor consisting of small metal rings linked together in a pattern to form a mesh.
  • Door chain, a type of security chain on a door that makes it possible to open a door from the inside while still making it difficult for someone outside to force their way inside
  • Gang transport chain, a chain used to shackle two or more inmates together for transport or work outside the facility, forming a chain gang
  • Leg iron chains (fetters), an alternative to handcuffs
  • Prisoner transport restraints, a combination which consists of a pair of handcuffs attached by a longer chain to a pair of leg irons
  • Security chain, chain with square edges to prevent cutting with bolt-cutters
  • on chain-linked handcuffs the cuffs are held together by a short chain

Traction, pulling and lifting[edit]

Ball chain pull switch for a ceiling light
  • Anchor cable, as used by ships and boats, in British nautical usage the component is a cable, the material is chain
  • chain slings
  • chain hoist
  • Chain steam shipping
  • Chain-linked Lewis, lifting device made from two curved steel legs
  • Curb chain, used on curb bits when riding a horse
  • High-tensile chain (or "Transport chain"), chain with a high tensile strength used for towing or securing loads
  • Jack chain, a toothed chain used to move logs
  • Lead shank (or "Stud chain"), used on horses that are misbehaving
  • Pull switch, an electrical switch operated by a ball chain
  • Rigid chain actuator, a type of chain that only bends in one direction, allowing it to operate under compression
  • Snow chains, used to improve traction in snow
  • Lavatory chain, the chain attached to the cistern of an old-fashioned W.C. in which the flushing power is obtained by a gravity feed from above-head height. Although most cisterns no longer work like that, the phrase "pull the chain" is still encountered to mean "flush the toilet".


  • Chain gun, type of machine gun that is driven by an external power source, sometimes connected by a chain, to actuate the mechanism rather than using recoil
  • Chain-shot, a type of ammunition for a cannon, used to inflict damage to the rigging of a sail vessel in naval warfare
  • Chain weapon, a medieval weapon made of one or more weights attached to a handle with a chain

Other uses[edit]

Types of chain[edit]

  • Flat chain, form of chain used chiefly in agricultural machinery
  • Ladder chain, a light wire chain used with sprockets for low torque power transmission
  • O-ring chain, a specialized type of roller chain
  • Roller chain, the type of chain most commonly used for transmission of mechanical power on bicycles, motorcycles, and in industrial and agricultural machinery
  • Silent chain, a type of chain in which the links engage the sprockets similarly to gear teeth

This section needs expansion. You can help by adding to it. (April 2021)

  • Stud link chain is chain with metal between the sides of each link keeping the attached links in place. This helps prevent bunching when the chain is run out from a storage bin, as for use in anchoring ships.
  • Short link chain is chain where the gap between attached links is small relative to thickness.
  • Long link chain
  • Calibrated chain is chain where the link lengths are within a given tolerance, so that it reliably engages with a windlass.


Several methods are available to connect chain ends to each other or to other objects, and to apply a load to a chain away from the ends. These methods are usually specific to the type of chain, and must be of the correct size.


This section needs expansion. You can help by adding to it. (April 2021)


The metal link chain has been in use since at least 225 BC.[1]


The prevalent modern symbolism is oppression,[citation needed] due to the use for a mechanical restriction of the liberty of a human or animal.

Chains can also symbolize interconnectivity or interdependence. Unicode, in versions 6.x, contains the U+1F517 🔗LINK SYMBOL, which may show chain link(s). It may also denote a hyperlink.


See also[edit]


External links[edit]

Wikimedia Commons has media related to Chains.
Look up chain in Wiktionary, the free dictionary.
  1. Mountaintop ornament
  2. Geeky knitting
  3. 29 cfr 38

Roller Chains

With the widest variety of chains on the market, Tsubaki Power Transmission, LLC. premium roller chain products include: self-lube LAMBDA® series chain, corrosion-resistant Neptune® chain, fatigue-resistant super chain, and our latest generation of high-quality, long-lasting ANSI chain.

Appropriate for applications as diverse as food packaging, forklift trucks, oilfield mining, and more, our roller chains provide reliable and powerful performance. To learn more, please select a category below.

If you are searching for a straightforward and simple method of transmitting mechanical energy, look no further than roller chains. Roller chains are one of the final connections in motion control systems and are comprised of rollers, pins, side plates and bushings. To work effectively, a sprocket connected to the motor moves the chain, while the other end is connected to the load.

In this section, we'll discuss how roller chains work, why they are effective, and what types of roller chains we can offer for your project.

How Do Roller Chains Work?

Roller chains run on a rotating sprocket connected to a motor that moves the chain. In most roller chains, two types of links alternate in order for it to work.

  • Inner links (also known as Roller Links): two inner plates held together by two sleeves or bushings that sit under two rollers.
  • Outer links (also known as Pin Links): two outer plates held together by pins, pass through bushings of inner links.

The environment in which your roller chain is used, along with the work it performs, will influence what type of roller chain to use and how often you'll need to change the roller chain. Rest assured, roller chains are one of the most effective and efficient options for power transmission and conveyance applications.

You will find roller chains most commonly used for transmission of mechanical power of industrial machinery and for product conveyance throughout manufacturing facilities. Common industries:

  • Food & Beverage
  • Material Handling & Packaging
  • Automotive
  • Primary Metals
  • Construction
  • Mining

Types of Roller Chains by Tsubaki

Tsubaki, the global market share leader for roller chain, manufactures a large variety of roller chains for any application. Some of the chains include:

  • ANSI roller chains
  • Standard and made-to-order attachment chains
  • Lambda® Lube-Free Chains
  • Plastic chains
  • Titan® harsh environment chains
  • British standard chains
  • Anti-corrosive/heat resistant chains
  • Specialty, made-to-order chains
  • Super Stainless™ chain (a unique stainless steel chain with the strength of carbon steel)
  • Gripper™ chains (Packaging)

Tsubaki prides itself on manufacturing and properly applying each of the roller chains we make to ensure your specific application is optimized for efficient operation.

To assist in building the proper attachment chains for you application, and to receive a quote, we have created an on-line attachment chain configurator for designing standard attachment chains with the specific spacing you require. The attachment chain configurator is an easy-to-use, on-line program with the following features:

Chain Configurator

Chain Configurator

  • Drop-down menus to select chain type
  • Drag-and-drop functionality for adding attachments
  • View and download 2D/3D CAD models that can be imported into CAD software
  • Request a quote for the attachment chains you build
Chain Drives - Types of Chain Drives and their uses

Introduction to
Tsubaki Roller Chain

Introduction to Tsubaki Roller Chain

Roller Chain Structure

1. Three Basic Dimensions
Pitch, Roller Diameter and Inner Width are known as the "Three Basic Dimensions of Roller Chain." When these three dimensions are identical, roller chains and sprockets are dimensionally compatible.

2. Basic Parts
Link Plate
The plate is the component that bears the tension placed on the chain. Usually this is a repeated loading, sometimes accompanied by shock. Therefore, the plate must not only have great static tensile strength, it must also hold up to the dynamic forces of load and shock.

The pin is subject to shearing and bending forces transmitted by the plate. At the same time, it forms a load-bearing part (together with the bush) when the chain flexes during sprocket engagement. Therefore, the pin needs high tensile and shear strength, resistance to bending, and must also have sufficient endurance against shock and wear.

The bush is subject to complex forces from all parts, especially from the repetition of shock loads when the chain engages the sprocket. Therefore, the bush needs extremely high shock resistance. In addition, the bush forms a load-bearing part together with the pin and as such requires great wear resistance.

The roller is subject to impact load as it mates with the sprocket teeth during engagement of the chain with the sprocket. After engagement, the roller changes its point of contact and balance. It is held between the sprocket teeth and bush, and moves on the tooth face while receiving a compression load. Therefore, it must be resistant to wear and still have strength against shock, fatigue and compression. (RS25 and RS35 are bush chains and do not have rollers).

Roller Link
Two bushes are press fit into two roller link plates and rollers are inserted to allow rotation around the outside of the bushes during operation. This is the same for single and for multi strand chains.

Pin Link and Intermediate Plate
The pin link consists of two pins that have been press fit into two pin link plates. In case of multi-strand roller chain up till size 08B, an intermediate plate is added to the pin link. In case of multistrand roller chain above size 08B, two intermediate plates are added to the pin link. The intermediate plates are slip fit for standard roller chain and press fit for SUPER roller chain.

Connecting Links

3. Assembly Parts
Roller chains are usually made up of a number of inner and outer links in an endless formation. Although offset links can be used when there is an odd number of links in the roller chain, it is better to use a design that requires an even number of links. If an odd number of links cannot be avoided, it is recommended to use a two-pitch offset link in stead of a one-pitch offset link. As it is riveted into the chain, a two-pitch offset link has a 100% Maximum Allowable Load, where as the one-pitch offset link has a Maximum Allowable Load of 65%.

Connecting Links
There are three types of connecting links: spring clip connecting link, cotter pin connecting link and spring pin connecting link.
It's common to use slip fit spring clip connecting links for small size roller chains. Cotter pin and spring pin connecting links are used for large size roller chains and on customer request.

Offset Links

Offset Links
An offset link is used when an odd number of chain links is required. Different types are available:

One pitch offset link (OL).
The pin and two plates are slip fit. The fatigue strength is 35% lower than the chain itself.

Two pitch offset link (2POL).
Two pitch offset links are the combination of a roller link and an offset link connected with a rivet pin. The fatigue strength is the same as the fatigue strength of the base chain. Please refer to the dimension tables for roller chain types and sizes suitable for offset links.


Chain links industrial

Types of Industrial Chain Links

Specialty Chain: Unique Options for Your Special Projects

Sometimes a standard roller chain simply won't work for your project -- you're either in a challenging environment, have heavy-duty requirements or demanding applications. While we also offer machining options for chains and attachments, these "standard" specialty chains are some of our most-requested chains. Need spikes on the top of your chains or bindery chain? No problem! Our specialty chains have you covered. From sharptop to sidebow, each of our specialty chains is crafted with care to meet exacting ANSI standards so you can be confident that your machinery will work as expected without unexpected breakdowns or bowing of the chains.

Agricultural Chain: The Ideal Solution for Your Toughest Work

Keeping the nation's farmers moving requires a wide range of machines that can perform reliably in even the toughest conditions. Agriculture is an industry that waits for no one, which makes it extremely important to ensure that you have access to the correct tools to manage food- and resource-producing activities without undue waste or delays. Agricultural chains are ideal for high-impact applications such as baling hay while also handling excessive dirt and dust that could easily gum up the works and cause chains to stretch or even grind to a halt. Extreme heat and cold and long hours of activity can also take a toll on your equipment, making it vital to know that your agricultural chains can be trusted over time.

Engineering Class Chain: Conveyors to Steel Mills -- We Have You Covered

With superior strength and durability, engineering class chains offer exceptional strength and a high fatigue point to provide an added measure of safety for your next project. You might find engineering chains in everything from a car wash to a heavy-duty food service application such as conveyors. This class of chains is ideal for situations where you will have a great deal of stress and jolts, and are also hardy enough to be used in dirty, dusty or greasy situations. Repetitively picking up and moving items such as with a tow truck or other heavy applications are where machinery designers tend to use engineering class chain due to their compact form factor, extreme durability and their ability to maximize power transfer.

Leaf Chain: Durable, High Tensile Strength Chains

Need some heavy-duty lifting? Leaf chains are extraordinarily strong and have an interlocked design that helps reinforce the strength and durability of these chains. Leaf chains are different than roller chains due to their stacked plates and pins that fit together tightly. With leaf chains, you are able to get a much greater strength profile in a compact form factor, providing up to an 8 x 8 lacing that can significantly boost the longevity even when using these chains in the most demanding conditions.

Sprockets: Keep Your Roller Chains Moving

Engineers will tell you -- roller chains are not effective without sprockets to get everything moving smoothly and efficiently! Whether you need roller chain sprockets or conveyer chain sprockets, you will have peace of mind knowing that you can trust the quality of everything that you purchase from PEER Chain. There are many different types of sprockets available at, but we also offer custom manufacturing options so you can be sure to get exactly what you need for your machinery. With our quick shipping options and extremely large inventory, you will not ever have to worry about excessive downtime with your projects. We will quickly and efficiently steer you in the right direction in terms of specific chains, sprockets and attachments with the customer-focused service that you have come to expect from the professionals at PEER Chain.

If you're still feeling a bit fuzzy about the various types of chains and trying to find (not to mention measure) the chain that you need, never fear! The professionals at PEER Chain are available during normal business hours and are happy to work with you to ensure you have the right chains for your needs. Whether we're going through the different types of industrial chain links or helping discern which attachments you will need for a specific project, our over-the-top customer service helps you get your project moving again -- pronto! Contact our friendly and knowledgeable experts at 800-523-4567 or via email to [email protected] to get started.

MiHow2 - Diamond Chain - How to Count, Break, Extract, and Connect Different Strands of Roller Chain

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