Domestic ceramic bearings and ceramic ball bearings problems in research and development

Domestic ceramic bearings and ceramic ball bearings problems in research and development
 First, we are now seen reported high-speed, high-precision ceramic ball bearings in the development, and usually many more around the silicon nitride balls, mainly to solve the problem, a  ceramic ball  preform research, the other is precision ceramic ball processing method, mostly in the use of high-speed machine tools, CNC machine tools, high-speed spindle occasions, long life and low noise requirements of the  ceramic ball  bearings, ball consistently failed to blank out SI3N4 manufacturing and processing of new materials such as: SiC, ZrO2, ZTA, Sialon materials such research is still a small amount of production proved, the application of the vast majority of manufacturers of ZrO2. As concerns about the cost of good causes massive use of materials and processes can not. Haining Kang Knight Bearing Manufacturing Co., Ltd. produces low noise, dry friction, anti-static ceramic ball bearings and Japan NMB's the same size ceramic ball bearings conducted a detailed contrast, the dB difference on the two db, a good product can do 20db., and the same foreign products. But the price was positioned at the NMB's about 15%. The motor can be directly supporting domestic appliances. But this price is still higher compared to plain bearings and a big slice, only in high-end appliances and export of motor in order to be used.
Secondly, ceramic bearings and  ceramic ball  bearings and bearing production is the high-tech ceramics manufacturing technology industry combined, both are very high degree of specialization, such as ceramics and do not solve the problem of bearing industry combination, to achieve high-quality high-volume, low- cost of production to meet the market demand is just empty talk. Today, the domestic manufacturing enterprises can not produce bearing ceramic materials, ceramic materials capable of producing not bearing manufacturing enterprises, professional and interdisciplinary serious gap in practical applications, and some bearing manufacturers of ceramic bearings and ceramic ball bearings in the professional knowledge especially ceramic materials science and engineering research is relatively small, well-known ceramic bearings and ceramic ball bearing surfaces content. Created a ceramic material made bearing is ceramic bearings, ceramic ball is added ceramic ball bearings of the situation. Domestic ceramic bearings and  ceramic ball  bearings can only corrosion resistant, absolutely electric, absolutely magnetic, low-speed, light-load environments. There is a domestic manufacturer of ceramic materials there is a big problem in the clearance process and technologies are not yet under the premise of the blind pursuit of low prices caused by the material properties can not reach the expected results. Makes ceramic bearings and ceramic ball bearings into the development of new astray, but also caused more use of units of the ceramic bearings and ceramic ball bearings lose confidence.
Furthermore, as a high-tech product development, to go through technology-intensive investment and capital-intensive investment in two stages, the industrial production of ceramic bearings, it is necessary to overcome many technical difficulties, and the use of challenges and requires a large capital investment, but also To take advantage of market positioning, industry insight needed to develop the domestic ceramic bearings and  ceramic ball  bearings high level responsibility. Low-cost competition and the market is bound to bring a further deterioration of shoddy. Primitive accumulation of capital and ongoing reinvestment must serve the ceramic bearings and ceramic ball bearings to developments in the field of higher quality. Stage of development of China's ceramic bearings showed scattered, fragmented, small-scale local production of awareness and lack of overall macro-strategic thinking.