[krangk-shaft, -shahft]

noun Machinery.

a shaft having one or more cranks, usually formed as integral parts.

Origin of crankshaft

First recorded in 1850–55; crank1 + shaft Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for crankshaft

Historical Examples of crankshaft

British Dictionary definitions for crankshaft



a shaft having one or more cranks, esp the main shaft of an internal-combustion engine to which the connecting rods are attached
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

Word Origin and History for crankshaft

1854, from crank (v.) + shaft (n.). The basic form of the mechanism appears to date from Roman times.

Online Etymology Dictionary, © 2010 Douglas Harper