Bearings also play an important role in the steel industry and are mainly used in steel production and processing equipment, such as rolling mills, hot rolling mills, cold rolling mills, cutting machines, steel pipe production lines, etc. These equipment need to be able to withstand severe environments such as high temperature, high speed, heavy load and corrosion, so the quality requirements for bearings are more stringent. Bearings in steel production and processing usually use bearings with high strength, high wear resistance and high corrosion resistance to ensure long-term stable operation of production equipment and high product quality. In addition, bearings also play an important role in protecting employee safety in the steel industry. If the bearings used in the equipment malfunction or fail, it may cause damage to the equipment and even personal injury. Therefore, the quality and monitoring of bearings must also be highly valued.