arc of contact

Also found in: Medical.

[¦ärk əv ′kän‚takt]

(mechanical engineering)

The angular distance over which a gear tooth travels while it is in contact with its mating tooth. Also known as arc of action.

The angular distance a pulley travels while in contact with a belt or rope.

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References in periodicals archive ?

This features changes the wheel arc of contact and produces a better metallurgical finish.