Steel rolling is a key process in the production of profiles in the metallurgical industry. This is the process of rolling billets into sheets, bars or profiles of various cross-sections. The hot rolling temperature of steel is usually 800°C to 1250°C, and the hot rolling temperature of the roll surface in the deformation zone can be as high as 450°C to 550°C, so a large amount of water is generated and the coil needs to be cooled. In this case, the bearing grease selected for hot rolling should have the following properties:

　　1. It has strong adhesion to the surface of the roller and good water corrosion resistance.

　　2. It has good oxidation resistance and heat resistance at high temperature.

　　3. Good anti-emulsification performance, easy to separate from cooling water after rolling.

　　At present, the bearing greases used in household steel rolling mills are generally extreme pressure lithium compound grease, graphite calcium base grease and molybdenum disulfide grease. The excellent properties of extreme pressure lithium complex greases are extended. life of rolling bearings. However, with the continuous improvement of steel rolling technology and the continuous improvement of rolling mill grades, it is difficult for ordinary bearing grease to meet the technical requirements of bearings. In order to improve the working efficiency of rolling mills and reduce maintenance costs, rolling bearing greases at home and abroad have been developed and successfully developed. Rolling bearing greases have excellent high temperature properties, lubricating properties, water resistance and pumping properties. Practice has proved that the use of rolling bearing grease to lubricate the rolls in the steel rolling process can fully meet the requirements of use, and its effect is more obvious than that of ordinary bearing grease.

　　Roll bearing grease has excellent high temperature resistance, good extreme pressure and wear resistance, water resistance, corrosion resistance and excellent mechanical stability. Rolling bearing grease is suitable for rolling bearings of medium and small rolling mills for rough, medium and finishing rolling mills, rolling bearings for vertical rolling mills; bearings for medium and heavy plate rolling mills and heavy plate lathes.