ball bearing
"Ball bearings" are essential components in machinery, designed to reduce friction and support loads, enabling smooth rotational movement.
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Definition
B2Mechanical Engineering
(technical)A rolling-element bearing that uses spherical balls to separate and support moving parts, reducing friction.
Example
- The ball bearing in the motor helps reduce friction and wear.
- Engineers often use ball bearings in machinery to ensure smooth operation.
B1General Use
(common)A small, hard, spherical object used in various devices to reduce friction between moving parts.
Example
- The skateboard's wheels contain ball bearings for smooth rolling.
- She found a ball bearing on the ground, likely from a piece of machinery.
Similar
Terms that have similar or relatively close meanings to "ball bearing":