ball bearing

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ball bearing:

see bearingbearing,
machine part designed to reduce friction between moving parts or to support moving loads. There are two main kinds of bearings: the antifriction type, such as the roller bearing and the ball bearing, operating on the principle of rolling friction; and the plain, or
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.

ball bearing

[‚bȯl ′ber·iŋ]
(mechanical engineering)
An antifriction bearing permitting free motion between moving and fixed parts by means of balls confined between outer and inner rings.

ball bearing

1. a bearing consisting of a number of hard steel balls rolling between a metal sleeve fitted over the rotating shaft and an outer sleeve held in the bearing housing, so reducing friction between moving parts while providing support for the shaft
2. a metal ball, esp one used in such a bearing
References in periodicals archive ?
Minebea is a comprehensive manufacturer and supplier of high precision components such as miniature ball bearings and precision small motors for use in information & telecommunications equipment including primarily PCs, household electrical appliances, aircraft, and automobiles.
DRAPER, Utah, May 14, 2013 /PRNewswire/ -- GRW High Precision Bearings, one of the world's largest manufacturer of high-precision miniature ball bearings expanded production of a special bearing that specifically meets the exacting demands of anemometers and gas flow meters.
Part of the Minebea Group, which is one of the world's leading producers of miniature ball bearings and a major manufacturer of sophisticated precision electronic components.

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