Hardware bearings urgently need to improve process technology

China's hardware bearing industry manufacturing technology and process equipment technology development is slow, the car processing CNC low rate, grinding processing automation level is low, the country has only 200 automatic production lines. Most enterprises, especially state-owned and old enterprises, still have traditional equipment as their 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, and bainite quenching, have low coverage, and many technical challenges have failed to achieve breakthroughs.

The research and development of new steel grades for bearing steels, the improvement of steel quality, and the development of related technologies such as lubrication, cooling, cleaning, and abrasives, etc., have not yet been able to meet the requirements of bearing product level and quality improvement. 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 development of high-end abrasives has been greatly deficient. This has made the selection of foreign high-quality products the only way for some high-quality bearing manufacturers. In desperation, abrasives have lost a large part of their applications. The lack of communication between bearing companies and abrasive manufacturers has made this gap widening. Therefore, to promote the further development of China's bearing industry, it is bound to further improve the level of technology and equipment of the bearing industry.