Collar (redirected from Horse collar)

collar

1. Biology a marking or structure resembling a collar, such as that found around the necks of some birds or at the junction of a stem and a root

2. a section of a shaft or rod having a locally increased diameter to provide a bearing seat or a locating ring

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collar [′käl·ər]

(design engineering)

A ring placed around an object to restrict its motion, hold it in place, or cover an opening.

(mining engineering)

The mouth of a mine shaft.

(naval architecture)

An opening in the end or bight of a rope or cable supporting a mast that goes over the masthead.

A ring or loop of metal, rope, or other material, used to secure a heart or deadeye.

A fitting over a structural part passing through a bulkhead or deck.

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collar

1. A metal cap flashing for a vent pipe projecting above a roof deck.

2. A raised band which encircles a metal shaft, a wood dowel, or a wooden leg.

3. A raised section to reinforce a metal weld.

4. A collarino.

5. The reinforcing metal of a nonpressure thermit weld.

6. Same as escutcheon.

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Collar 

a ring or similar device that holds a shaft in some position relative to a base for processing established during installation, such as an end or middle bearing of a transmission. Collars are fastened to the shaft on both sides of a bearing to prevent endwise motion. They also may be used in the throw-out of a friction clutch to maintain the proper release distance or in the feed mechanism of a drill for use in drilling blind holes to a specified depth. Collars are made of steel or pig iron.