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[krangk-shaft, -shahft] /ˈkræŋkˌʃæft, -ˌʃɑft/
noun, Machinery
a shaft having one or more cranks, usually formed as integral parts.
1850-55; crank1 + shaft Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for crankshaft
  • Oil from the open crankshaft jetting up in his face, a hurricane of dirt thrown up on his skidding turns.
  • The wind turns the blades, which turns a crankshaft that creates mechanical power.
  • The small explosion that results pushes the piston down, turning the crankshaft and propelling the car.
  • His first attempt was a four-wheeled vehicle with a treadmill crankshaft between the rear wheels.
  • The dynamo's crankshaft broke after only a few hours of use.
  • Free-piston engines do away with the crankshaft: the pistons aren't connected to anything.
  • The fact you catch some of that kinetic energy with the crankshaft is nothing compared to the heat radiating from the engine.
  • Connecting rods are one piece, while crankshaft is made of multiple pieces.
  • Lack of crankshaft process control caused the subsurface metallurgical flaws.
  • Compression was obtained within all cylinders as the engine's crankshaft was rotated.
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
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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
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