What is a bearing?

Answer:
A bearing is a device to permit constrained relative motion between two parts, typically rotation or linear movement. Bearings may be classified broadly according to the motions they allow and according to their principle of operation as well as by the directions of applied loads they can handle.

See the Wikipedia article link below.

First answer by ID1558802773. Last edit by Cooleoboy1000. Contributor trust: 8 Question popularity: 5 [recommend question].