crankpin

or crank pin

[ krangk-pin ]
/ ˈkræŋkˌpɪn /

noun Machinery.

a short cylindrical pin at the outer end of a crank, held by and moving with a connecting rod or link.

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Origin of crankpin

First recorded in 1830–40; crank1 + pin
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for crankpin

crankpin
/ (ˈkræŋkˌpɪn) /

noun

a short cylindrical bearing surface fitted between two arms of a crank and set parallel to the main shaft of the crankshaft
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012