Also found in: Encyclopedia, Wikipedia.
crank·pinalso 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.