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

Keep scrolling for more

Learn More about ball bearing

Dictionary Entries near ball bearing

ball-bank indicator

Statistics for ball bearing

Look-up Popularity

Time Traveler for ball bearing

The first known use of ball bearing was in 1860

See more words from the same year

Keep scrolling for more

More Definitions for ball bearing

ball bearing

noun

English Language Learners 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

See the full definition for ball bearing in the English Language Learners Dictionary

ball bearing

noun

Kids Definition of ball bearing

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

Keep scrolling for more

Comments on ball bearing

What made you want to look up ball bearing? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

linchpin

one that holds something together

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

Boreal comes from the name of the ancient Greek god of which wind?

Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ

SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Words at Play

Ask the Editors

Word Games