Dictionary
Thesaurus
Encyclopedia
Translator
Web

ballbearing

 - 2 dictionary results

ball bearing

–noun Machinery.
1. a bearing consisting of a number of hard balls running in grooves in the surfaces of two concentric rings, one of which is mounted on a rotating or oscillating shaft or the like.
2. any of the balls so used.

Origin:
1880–85


ball-bearing, adjective
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
Cite This Source Link To ballbearing
Science Dictionary
ball bearing  


(click for larger image in new window)

  1. A ring-shaped track containing hard metal balls that roll freely, used to reduce friction where a rotating element (such as an axle) is attached to a fixed point.

  2. A hard ball used in such a track.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source
Search another word or see ballbearing on Thesaurus | Reference
FacebookTwitterFollow us: