Bearings offer outstanding versatility and flexibility for a variety of uses in industries that involve motion. That is, almost any kind of machinery or equipment - from household appliances and automotive parts to aerospace and defense equipment - uses bearings or is made from equipment that contains bearings. There are two main types of bearings: roller bearings and ball bearings. Roller bearings use cylinders to maintain separation between moving parts. Ball bearings, on the other hand, use balls to keep the shifting parts apart. Both roller and ball bearings are designed to reduce rotational friction while supporting axial and radial loads. Ball bearings operate at higher speeds than roller bearings and can support moderate radial and axial loads. Roller bearings can achieve relatively high speeds, but are specifically designed to carry heavier radial loads. Common Bearing Applications and Uses Bearings are unique in that they are used by essentially every indus...