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roller bearing

noun, Machinery
a bearing consisting of cylindrical or tapered rollers running between races in two concentric rings, one of which is mounted on a rotating or oscillating part, as a shaft.
1855-60 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for roller bearing
  • It had a ball bearing at one end and, of all things, a roller bearing at the other end.
  • He described three types of bascule structures: trunnion, rolling lift and roller bearing.
  • roller bearing at the north end allow for expansion.
  • The upper bearing shall be a single row roller bearing.
  • Upwind, the shaft is supported by a double spherical roller bearing.
  • Shaft bearings in barrel and bracket shall be roller bearing thoroughly lubricated to require no further attention.
British Dictionary definitions for roller bearing

roller bearing

a bearing in which a shaft runs on a number of hardened-steel rollers held within a cage
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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