Rolling mill bearings are specialized bearings used in the rolling roll systems of non-ferrous metals, ferrous metals, and non-metallic products, mainly bearing radial and axial loads during the rolling process. These bearings usually use a combination of four-row cylindrical roller bearings, thrust roller bearings, and angular contact ball bearings. The mainstream domestic models include the FC, FCD, and FCDP series. Lubrication methods include oil-air lubrication, oil mist lubrication, and grease lubrication. Some retrofit solutions add a lip water seal outside the labyrinth ring to prevent lubrication contamination.

Rolling mill bearings include three types: spherical roller bearings, a combination of four-row cylindrical roller bearings and thrust bearings, and four-row tapered roller bearings. Among them, four-row cylindrical roller bearings are widely used in continuous rolling mills due to their high radial load capacity. Bearings for high-speed wire rod mills have higher requirements for reliability, wear resistance, lifespan, and impact toughness, usually using four-row tapered roller bearings or double-row cylindrical roller bearings.

The rolling mill bearings developed by XSK Bearing have been applied in production lines of some companies. Their improved bearings achieve a certain level of sealing and pressure stability and have established design and process standards for this type of bearing. Technological innovations have enhanced the surface hardness, toughness, and impact resistance of the products.