The primary function of a bearing is to enable the controlled transfer of loads and motion while minimizing friction and wear. Bearings achieve this through the use of rolling elements, such as balls or rollers, or through sliding surfaces, depending on the specific type of bearing. By doing so, bearings help to maintain the integrity and alignment of rotating shafts, axles, and other mechanical components, ensuring smooth and efficient operation of the machinery.

The purpose of the deep groove type of ball races in a ball bearing is to provide a specific design that enables the bearing to effectively support radial and axial loads, reduce friction, and facilitate smooth and efficient rotation. The deep groove design of the ball races serves several key purposes, contributing to the overall functionality and performance of the ball bearing: