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wrist pin

noun, Machinery
a pin joining the end of a connecting rod to a trunk piston or the end of a piston rod.
1870-75 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for wrist pin
  • The connecting rod contains a machining defect in the wrist pin bushing of the rod that could cause a seizure of the piston pin.
  • The piston broke at the wrist pin hole and seized in the cylinder.
  • The piston is connected to the crank by a connecting rod and wrist pin.
British Dictionary definitions for wrist pin

wrist pin

a cylindrical boss or pin attached to the side of a wheel parallel with the axis, esp one forming a bearing for a crank
(US & Canadian) the pin through the skirt of a piston in an internal-combustion engine, to which the little end of the connecting rod is attached Also called (esp in Britain) gudgeon pin
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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