Simple Definition of ball bearing
: a part of a machine in which another part (such as a metal pole) turns easily
: one of the balls in a ball bearing
Full Definition of ball bearing
: a bearing in which the journal turns upon loose hardened steel balls that roll easily in a race; also : one of the balls in such a bearing
First Known Use of ball bearing
BALL BEARING Defined for Kids
Definition of ball bearing for Students
1 : a bearing in which the revolving part turns on metal balls that roll easily in a groove
2 : one of the balls in a ball bearing
Learn More about ball bearing
Spanish Central: Translation of "ball bearing" Nglish: Translation of "ball bearing" for Spanish speakers Britannica.com: Encyclopedia article about "ball bearing"
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