ball bearing

noun

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

1860


BALL BEARING Defined for English Language Learners

ball bearing

noun

Definition of ball bearing for English Language Learners

  • : a part of a machine in which another part (such as a metal pole) turns easily

  • : one of the balls in a ball bearing


BALL BEARING Defined for Kids

ball bearing

noun

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


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