ball bearing

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Related to Ball-bearing: radial bearing

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 ?

Police recovered the ball-bearing from inside the house.

Police hunt after drive-by shootings

Christmas warning to parents over air weapons and ball-bearing pistols

'This type of gun is not a toy'

Police at Little Park Street police station were handed the ball-bearing gun yesterday.

Weapon handed in

Mr David Travers, prosecuting, told Coventry Magistrates' Court yesterday that a customer, Taj Sandhu, aged 25, from Coventry, only discovered the ball-bearing while eating a mouthful of ice cream.

Ball-bearing was no sundae treat

The PM032-230-3B-7 is priced at $12/unit for quantities of 1,000 -- a significantly lower cost than competing 230V AC ball-bearing fans.

Purdy Enhances Interfan Offerings With the Addition of New High Performance 230 Volt AC Powered Fan; Fan is Designed for Long Life Under Continuous Operating Conditions

POLICE today gave parents some stern advice: Do not let your children have ball-bearing guns this Christmas.

Police alert over 'guns'

A BOY of 10 was excluded from school after firing a James Bond-style ball-bearing gun at a pupil.

007 terror at school

A BOY of 11 nearly lost an eye after being hit twice by pellets from a ball-bearing gun as he was playing with friends.

BOY NEARLY LOSES AN EYE IN SHOTS DRAMA; 11-year-old fired at twice while playing at skate ramp

Last week, armed police were called out after reports of a 14-year-old youth who had been playing with a ball-bearing gun.

HAIR TRIGGER FROM TRAGEDY; Armed police sound alert over air guns

Summary: A booby-trapped motorcycle loaded with nails and ball-bearings went off in a crowded bazaar Friday in Baghdad

At least 13 dead in Baghdad blast

Ball-bearings have been fired at vehicles on a stretch of the motorway between junctions 28 and 31 (Tingley to Normanton).

'Firing on M62 could kill'

One recent example: when Chrysler added a performance version of its PT Cruiser, it found that its ball-bearings couldn't handle the added strain, so it turned to Timken with a quick development request.