Bearing industry overview (2)?

Bearing industry overview (2)?

Second, the R&D and innovation capabilities are low. The basic theoretical research of the whole industry is weak, the participation in the formulation of international standards is weak, and there are few original technologies and few patented products.
At present, our design and manufacturing technology is basically imitation, and our product development ability is low. The supporting and maintenance bearings of the main engine are basically imported.

Third, the level of manufacturing technology is low. The development of manufacturing technology and process equipment technology in my country's bearing industry is slow, the numerical control rate of turning is low, and the automation level of grinding is low. There are only more than 200 automatic production lines in the country. 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, and many technical problems have failed to make breakthroughs. The research and development of new steel grades of bearing steel, the improvement of steel quality, and the research and development of related technologies such as lubrication, cooling, cleaning and abrasive tools cannot meet the requirements of improving the level and quality of bearing products. As a result, the process capability index is low, the consistency is poor, the dispersion of product processing dimensions is large, and the inherent quality of the product is unstable, which affects the accuracy, performance, life and reliability of the bearing.

STEAM TURBINE BEARINGS