In mechanical terms, a bearing is a machine element that facilitates smooth and controlled motion between two or more moving parts. It is designed to reduce friction and support the load generated by the moving components, allowing them to move relative to each other with minimal resistance. Bearings are crucial in a wide range of machinery and equipment, providing support for rotational, linear, and oscillating motion.

   - Radial ball bearings are designed to support radial loads, which are forces acting perpendicular to the shaft's axis. They are commonly used in applications where the primary load is radial, such as in electric motors, pumps, and gearboxes.