+A **mechanical bearing** is a machine element designed to constrain motion and reduce [Friction](/wiki/friction) between moving parts. It supports a mechanical [Load](/wiki/load) while permitting relative motion, crucial for the efficient operation of most machines.
+## See also
+- [Lubrication](/wiki/lubrication)
+- [Shaft](/wiki/shaft)
+- [Ball Bearing](/wiki/ball_bearing)