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 ?
About six weeks ago we had a similar incident and then a steel ball-bearing went through a window and through a wooden shutter as well.
The attacker has fired steel ball-bearings into a pub,homes and businesses around Wrexham.
Police at Little Park Street police station were handed the ball-bearing gun yesterday.
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.
Mr Travers said the ball-bearing was unwittingly "spooned" into the dessert by a staff member after the topping pump broke down.
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.
POLICE today gave parents some stern advice: Do not let your children have ball-bearing guns this Christmas.
Police cleared a Newcastle- bound train and a Huddersfield man with a ball-bearing gun was arrested.
Warwickshire police spokeswoman Di Houlder said a ball-bearing gun looked just like a real weapon.
Insp Chris Lewis, officer in charge of the firearms unit, who is involved in educating young people about the dangers, said: "Although there are strict regulations covering air weapons, there is no legislation covering the so called "airsoft" weapons such as ball-bearing guns.
A booby-trapped motorcycle loaded with nails and ball-bearings went off in a crowded bazaar Friday in Baghdad, killing at least 13 people and injuring dozens, Iraqi officials said.
But if people are firing ball-bearings at cars on the M62 the potential for such stupidity to cause an incredibly serious collision on such a busy road is obvious.