Dictionary.com

idle wheel

noun Machinery.

a wheel for transmitting power and motion between a driving and a driven part, either by friction or by means of teeth.
idle pulley.

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Origin of idle wheel

First recorded in 1795–1805

Words nearby idle wheel

idle pulley, idler, idler shaft, idlesse, idle time, idle wheel, idly, IDN, Ido, idocrase, idol
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for idle wheel

idle wheel

noun

a gearwheel interposed between two others to transmit torque without changing the direction of rotation to the velocity ratioAlso called: idler
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