Tin and lead-base Babbitt's are among the most widely used bearing materials. They have an ability to embed dirt and have excellent compatibility properties under boundary lubrication.

Bearings are used for
Support and hold the shaft in a fixed position
Allow the shaft to run freely
Minimize the rubbing action

Anti friction Bearings consists of Rolling elements, Races and cage.

The portion of the shaft, which is carried in the bearing, is called journal.