ball bearing
See also: ballbearing
English
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/98/Four-point-contact-bearing_din628_type-qj_180-ex.png/250px-Four-point-contact-bearing_din628_type-qj_180-ex.png)
Noun
ball bearing (plural ball bearings)
- (engineering) A bearing assembly which uses spherical bearing balls as the rolling elements.
- (in common usage) An individual spherical ball, usually made of steel or other hard material, suitable for use in a ball-based rolling element bearing.
Derived terms
Translations
bearing assembly with spherical balls
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