arc of contact

: the portion of a circular surface that is in contact with another surface (as that between a belt and a pulley)
specifically : the arc on a toothed gear between the point where the teeth first make contact with another gear wheel and the point where that contact ends

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Dictionary Entries Near arc of contact

Cite this Entry

“Arc of contact.” Dictionary, Merriam-Webster, Accessed 3 Oct. 2023.

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