my country's hardware bearing industry manufacturing technology and process equipment technology is developing slowly, the CNC rate of turning processing is low, and the level of automation of grinding processing is low. There are only more than 200 automatic production lines in the country. Most enterprises, especially the old state-owned enterprises, still use traditional equipment as the main production force. Advanced heat treatment processes and equipment that are critical to bearing life and reliability, such as controlled atmosphere protection heating, double refinement, bainite quenching, etc., have low coverage rates, and many technical problems have failed to achieve breakthroughs.

The research and development of new bearing steel grades, the improvement of steel quality, the research and development of lubrication, cooling, cleaning and abrasives and other related technologies, have not yet been able to meet the requirements of the level and quality of bearing products. As a result, the process capability index is low, the consistency is poor, the product processing size dispersion is large, and the internal quality of the product is unstable, which affects the accuracy, performance, life and reliability of the bearing.

The overall development speed is not fast enough, and the enterprise investment in the development of high-end abrasives is greatly insufficient, which makes it the only way for some high-quality bearing processing and production enterprises to choose foreign similar high-quality products. In desperation, the abrasives lost a large part of the users. The lack of communication between bearing companies and abrasive tool manufacturers has made the gap between this increasingly widening.