- Thrust ball bearings are specifically designed to support axial loads, which are forces acting parallel to the shaft's axis. They are used in applications where the primary load is axial, such as in automotive transmissions, machine tool spindles, and thrust applications.

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.