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 ?
With bore diameters as small as 3 mm and thin cross-section profiles, miniature ball bearings have flourished, especially in compact tool designs offering limited real estate for components.
10 November 2015 - US-based aerospace and industrial distribution company Kaman Corp.'s (NYSE: KAMN) Aerospace segment has entered into an agreement to acquire GRW Bearing GmbH, a German designer and manufacturer of super precision, miniature ball bearings, the company said
A recent development from GRW Bearings -- Wurzburg, Germany, is a stainless steel alloy designed for the manufacture of small and miniature ball bearings. Called SV30, this new material has been engineered to increase resistance to corrosion, contamination, and wear.
Headquartered in Bloomfield, Connecticut,the company produces and markets proprietary aircraft bearings and components; super precision, miniature ball bearings; complex metallic and composite aerostructures for commercial, military and general aviation fixed and rotary wing aircraft.

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