driving wheel definition

  • noun:
    • On a steam locomotive, a powered wheel driven by the locomotive's pistons or turbine.
    • In machinery, a principal wheel that communicates motion to some other or to others.
    • In railroading, the big wheels (generally four, though sporadically as many as ten, in number) in a locomotive engine that are fixed upon the crank-axles or primary shafts. Also known as driver and drive-wheel.
    • a wheel that drives a motor vehicle (transforms torque into a tractive force)
  • adjective:
    • a wheel that communicates motion; one of several big rims of a locomotive to which the connecting rods associated with the engine tend to be connected; -- labeled as also, merely, motorist. See Illust. of Locomotive.

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  • Synonym for "driving wheel"
  • Hypernym for "driving wheel"
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