Roller bearings in mills are generally used to support rotary mill rollers and ensure their smooth rotation. These bearings aim to minimize energy losses by reducing friction while carrying the weight of the rollers.

Roller bearings usually consist of parts such as bearings or bushings. Bearings facilitate the rotating motion of rollers by using rolling elements (usually balls or rollers). These bearings are ideal for high speed rotation applications. Bushings, on the other hand, are usually made of metal or polymer materials and may have self-lubricating properties to reduce friction.

Roller bearings must be in the correct position and well lubricated to ensure efficient operation of the mill. This reduces excessive friction and wear, optimizes energy resources and extends the life of the mill.