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 ?
Limited Tenders are invited for Procurement Of Bearings : Bearing 7311 becbj(pair), single row angular contact ball bearing, cage: steel, make: skf/ fag
96 1498 rpm) features of this fault of ball bearing are obtained according relations (1) to (4) and shown in table (1):
Rastafarian Levi Tafari Genesis was gunned down with an imitation firearm which had been converted to fire ball bearings.
This new block has fitted ball races and high-load ball bearings for higher load capacity and a unique swivel pin-locking device that can lock the forged shackle at 90-degree intervals or be left to swivel freely.
Pacamor Kubar Bearings (PKB), an American owned and operated ball bearing manufacturer in Troy, NY announced today the expansion of its high precision aerospace ball bearing manufacturing unit.
On the other hand, when a cylindrical roller bearing is used, a structure absorbing thermal shaft expansion is unnecessary as the bearing itself can move axially but the high speed performance is inferior to the angular ball bearing.
THREE footballers face disciplinary action after being cautioned by police for taking pot shots at passers-by with a ball bearing gun from a car.
There is also the growing popularity of ball bearing guns,particularly among youngsters.
A WOMAN in her 60s had a narrow escape when a ball bearing gun was deliberately fired at the car in which she was a passenger.
The youths' ball bearing guns - which were not fired - were confiscated by officers.