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Related to crankpin: Big end, crank throw, crank web


also crank pin  (krăngk′pĭn′)
A bar or cylinder in the arm of a crank to which a reciprocating member or connecting rod is attached.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Mechanical Engineering) a short cylindrical bearing surface fitted between two arms of a crank and set parallel to the main shaft of the crankshaft
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


or crank′ pin`,

a short cylindrical pin at the outer end of a crank, held by and moving with a connecting rod or link.
Compare web (def. 11).
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


[ˈkræŋkˌpɪn] n (Aut) → perno di biella
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in periodicals archive ?
On dismantling and inspection, the crankpin of the second plunger of the crank shaft was found to have sheared off.
The crank and the crankpin are fixed and turn simultaneously with the arm.
Then, excitation force and torque acted on the crankpin from I to VI are obtained by MSS.
With all that detail about the tractor, the new release must have seemed unquestionably legitimate to any prospective buyers, as noted by Tractor Selling Opportunities, which said, "The crankshaft runs on three bearings 2-1/2 inches in diameter and 3-1/2 inches long, the crankpin bearings being, front 3-1/4 inches, middle 3-1/2 inches, rear 4-1/4 inches.
Presented a study including the effect of dilation thermal of the bearing and/or the crankpin, and the elastic strain of the bearing due to the pressure field; In 2000, [4].
The unremitting working conditions and intensive wear of marine diesel engine crankshaft main and crankpin journal surfaces, along with potential lubrication failures, cause various types of damage to the journal surfaces.
The calculation of the direction of resulted force straining the crankpin neck is made according to the positive or negative values of the involved forces and at the values so obtained it was added 180[degrees] to achieve the correlation of force variation with the neck surface which takes over those forces.
The crankshaft was found to have cracked and was separated at the forward end of the number four crankpin journal.
Each stage had an independent cylinder, piston, vane, and crankpin that was part of the crankshaft and engaged with the piston.
Each crank represents two cheeks, interconnected by the crankpin. Mass of electroslag casting billet of the crank is about 5 t, and diameter of the crankpin is about 0.5 m.