Precision cross tapered roller bearings: a course towards the formation of specialized industrial clusters 

At present, the market environment for cross tapered roller bearings in China is changing, and the policy environment for the industry's development is also changing; If previously the government was inclined to use incentive measures to promote development, now it is looking for new driving forces for economic development through the comprehensive deepening of reforms. With regard to the transformation and modernization of enterprises, previously they preferred to use administrative methods, but now they increasingly rely on market forces pushing for this.

Likewise, in terms of product technology and industry scale, China's cross tapered roller bearing industry has already achieved significant breakthroughs. In the development process of the crossover tapered roller bearing industry, the Chinese market has consistently adhered to innovative development as the basis, strengthened technical exchange with developed countries, which has greatly enhanced the strength of the Chinese crossover tapered roller bearing industry and the competitiveness of products in the market. Many influential domestic and international precision bearing brands have emerged.

Although the level of international competitiveness of products has also improved in recent years, it is mainly concentrated in the mid- and low-end segment, such products have low added value, and some of the high-precision cross tapered roller bearings are still dependent on imports. Take, for example, the spindle bearings of precision machine tools: the spindle bearing is a basic component of machine tool bearings, its characteristics directly affect the machine speed, rotation accuracy, rigidity, resistance to vibration during cutting, noise, heating and thermal deformation, etc., and through this - the accuracy of the machined parts, surface quality, etc. As for the bearings of high-speed and high-precision spindles CNC machines, machining centers, etc., then it is necessary to select ultra-precision bearings of class P4 and higher. With the rapid development of CNC technology, "complexity, high speed, intelligence, precision, environmental friendliness" have become the main development trends of modern machine tool industry. At the same time, high-speed processing can effectively increase the processing productivity of the machine and reduce the part processing cycle. This requires the machine spindle and associated parts to meet the needs of high-speed machining. Currently, of the machine tool industry's demand for approximately 150 thousand sets of ultra-precision angular contact ball bearings of class P4 and above, about half come from foreign bearing companies such as FAG, NSK, SKF, etc. In addition to psychological factors and brand effect, the technical characteristics and reliability of bearings are the main reason why customers in the machine tool industry choose imported cross tapered roller bearings. And imported precision cross tapered roller bearings, although they have excellent performance and high reliability, have disadvantages such as high price, long delivery times, and lagging after-sales service.

In the future development, the industry and related enterprises must show determination, focus on research and development, pay serious attention to the research of new technologies and new processes, gradually form a research and development structure with division of labor, cooperation, covering multiple fields and comprehensive approach, produce precision cross tapered roller bearings with its own intellectual property rights, and by mastering advanced experience, advanced technology and attracting highly qualified specialists from abroad to improve the level of design and production of precision cross roller bearings.