Bearing/current problems of Chinese bearing industry

High-end bearing road development research has a long way to go, the industry has the problem of 'two weak three less', namely basic theoretical research is weak, participation in international standards can force is weak, less original technology, invention patent products less, less experimental technology research. Our bearing enterprises do not attach importance to basic research, testing technology and equipment research, lack of core technology; Poor product quality and stability, moreover, in the late 1990 s, the reform of scientific research institutes, industry under centralized enterprise as research institutes, on the basis of theory study and common technology research and development function weakened or even disappeared, the lack of leading the industry technology innovation, rely on and support. Industry common technology research and development and the lack of service platform, enterprises lack of independent innovation of endogenous power and vitality, the industry has yet to realize the technology imitation and technology to track the changes to the technology innovation strategy. Vigorously develop strategic emerging industry in China in recent years, the equipment manufacturing industry level, large complete sets of equipment and key host can basically meet the need of national economic construction and national defense construction, but it can't keep up with the host high-end bearing products and technology development request, has become a bottleneck restricting the development of China's major equipment and high-end equipment. High-end bearing, due to bearing accuracy and performance is at or near the host user requirements, but not enough life stability, consistency and reliability have larger gap or has not been verified, thus the following in the field of domestic bearing has not been recognised by the user, all or most of the imports: high-speed emu bearing, bearing large thermal power units, the plant main coolant loop device bearing, wind turbine drive system bearing ( Main shaft bearing, speeder bearing, generator bearing, etc. ) , the introduction of form a complete set of high speed and high precision metallurgical rolling mill bearings, including shield construction machine, large-scale construction machinery bearings, high speed and high precision CNC machine tools and electric main shaft bearing, bearing new urban rail transit, ship water lubricated bearing, and so on. At present, the large bearing companies include: shaft research science and technology, the shaft, shaft, wazhou, humanism, tianma co, wanxiang group money, xiangyang bearing, stream shares, northwest bearing, etc. Among them, the shaft research technology with bearing industry's only national comprehensive research institute of China, luoyang to railway bearing, etc special bearing, The shaft is given priority to with precision, high precision aerospace bearings; Tile shaft production of large precision bearing; Humanistic group mainly small household bearing; Tianma stake in the field of railway wagon bearing, wind power bearing has strong advantage; Universal money-is-coming is given priority to with car wheel bearing and hub unit products; Xiangyang bearings for automobile bearing; Stream co production joint bearing; Northwest bearing is oil machinery bearings and metallurgical machinery bearings is given priority to, at the same time in high speed railway bearing, the status quo of wind power bearing developed countries bearing industry characteristics: super bearing enterprise scale, the collectivization, formed the large-scale enterprise group and multinational companies, such as rolling bearing has Japan NSK, NTN, Swedish SKF company, the United States Timken company, Germany INA and FAG schaeffler group, Kingsbury, Waukesha sliding bearing with the United States, Britain's michelle and German RENK, etc. ; Second, bearing yield increased significantly, in the early 1950 s, the world no more than 900 million sets of bearing production, in the late 90 s has more than 10 billion sets; Three variety is bearing, use is becoming more and more widely, both traditional bearing, and a universal joint bearing, super thin wall bearing, air bearing, all kinds of the high speed, high temperature, low temperature, antimagnetic, fan corrosion resistant special conditions such as the use of special bearing, etc. ; Fourth, advanced equipment, high degree of automation, testing means the guru, processes between the computer management, less people or unmanned operation, high technical level, high production efficiency; Five is composite bearing material high level, and diversification, because has a lot to improve surface quality of bearing, bearing materials not only include high carbon chrome steel, carbon steel, stainless steel, heat-resistant steel and tool steel and other metal materials, and ceramics, plastics, graphite and carbon fiber etc. Nonmetal materials; Six axis bearing is an unprecedented development, international trade can say all the world bearing industry to promote the use of bearing areas of industry, industry, development and prosperity, for the world economy and made tremendous contributions to the progress of human society, the world's leading bearing company broken around 75% of the global market, relying on technological superiority, high-end bearing a few in number of foreign companies in China