Friction bearing definition
A bearing made of babbitt , bronze , etc. There are no moving parts (like an anti-friction bearing which has ball bearings). The smooth inner surface of the babbitt insert and the smooth surface of the shaft rub or slide against each other. To avoid disintegration, the bearing must use lubrication (i.e., wet friction ). Friction bearings are less expensive and cheaper to service than antifriction bearings.