AST Ball Bearings are a type of rolling-element bearing that uses balls to maintain the separation between the moving parts of the bearing. The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads.

Ball Bearings Ball bearings can support moderate radial loads and moderate axial loads (parallel to the shaft). They can operate at high speeds. Ball bearings with shields or seals for protection are usually lubricated to last for the operating life.Radial ball bearings are the most widely used type of rolling element bearing in the world today due to their versatility and overall performance. Below is a cross sectional view of a typical radial ball bearing. These bearings are produced with high quality materials and exacting tolerances.