chain

thumb|A common metal short-link chain thumb|Roller chains

AI overview

A chain is a series of linked metal rings or parts connected together in a line, with various designs like short-link and roller chains used for different purposes. Chains matter because they're essential tools for lifting, securing, transmitting power in machinery, and countless other practical applications across industries and everyday life.

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Wikidata facts

Image: Broad chain closeup.jpg

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Commons gallery: Chain
Unicode character: ⛓
Commons category: Chains
hashtag: chain

Sources (3)

via Wikidata · CC0

~10 min read

Article

15 sections

Contents

Uses for chains
Decoration
Power transfer
Security and restraint
Traction, pulling and lifting
Weapons
Other uses
Types of chain
Connections
History
Symbolism
Gallery
See also
References
External links

thumb|A common metal short-link chain thumb|Roller chains

A chain is a serial assembly of connected 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 chains.