ball bearingnoun [ C ]
uk/ˌbɔːl ˈbeə.rɪŋ/us/ˌbɑːl ˈber.ɪŋ/a small metal ball or several of these arranged in a ring to make particular parts of a machine move more easily
Thesaurus: synonyms and related words
Machines - parts
- bearing
- clutch
- cog
- cogwheel
- hub
- inlet
- input
- jet
- lever
- manifold
- pivot
- rack and pinion
- ram
- ratchet
- sleeve
- soft key
- stepney
- timer
- vee belt
- wheel
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Examples from literature
- Chrome steel is also hard and tough and finds use in files, ball bearings and projectiles.
- In this place young women were employed to sort the ball bearings which went into the machines.
- Q. How often should the ball bearings be oiled?
- The rims were so nicely adjusted with ball bearings that the smallest blow would send them spinning around, therefore a shell could not penetrate because it would glance off.
- They work on ball bearings.