driving wheel

noun
  1. Machinery. a main wheel that communicates motion to others.
  2. Also called driver. Railroads. one of the wheels of a locomotive that transmits the power of an engine or motor into tractive effort.

Origin of driving wheel

First recorded in 1830–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for driving wheel

Historical Examples of driving wheel

  • The ratchet-wheel R is attached to the hub of the driving-wheel.

    How it Works

    Archibald Williams

  • The driving-wheel is assumed to be on the further side of the ratchet.

    How it Works

    Archibald Williams

  • On the level we want the driving-wheel to turn as fast as, or faster than, the chain-ring.

    How it Works

    Archibald Williams

  • Lime appears to be the driving-wheel in the laboratory of the soil.

    The Peanut Plant

    B. W. Jones

  • The half-crank, and method of attaching it to the driving-wheel.


British Dictionary definitions for driving wheel

driving wheel

noun
  1. a wheel, esp a gear wheel, that causes other wheels to rotate
  2. any wheel of a vehicle that transforms torque into a tractive force
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