With the progress of social development and the advancement of science and technology, it becomes much more strict for the bearing’ using conditions and using environment. Therefore, the requirements for the bearing structure, performance, and materials also slowly grow. Some areas with high technology and some machines under certain environment (such as aviation, metallurgy, chemical industry, electronic, electric power and so on), their requirements for bearing, also developed from the initial low demand to working under high temperature, high-speed, high-precision, vacuum, strong acid and special environment.
With the increase of those latest requirements, it has been unable to meet the requirements if just by traditional metal bearings improving structure and improving the lubrication condition. So we have to exploit new materials, do the breakthrough and innovation fundamentally. Researchers found that the ceramic material has very special performance; it can be able to work under the much strict working environment with metal material and some polymer materials. And it also has all the features which the bearing materials need, so using ceramic material to make bearings, has already been a hot spot in the world’s high technological exploitation and application, and it also has been a symbol of mechanical work materials.
Zirconia ceramic bearings
Zirconia ceramic bearings have the features of anti-magnetic, insulation and other features; they can work in the very strict environment. The rings and rolling elements adopt the zirconia ceramic materials.
Silicon nitride ceramic bearings
Silicon nitride ceramic bearing rings and ceramic rolling elements adopt the silicon ceramic materials, and suitable for the higher temperature environment. At the same time it can provide the precision bearings which used in high-speed and high-precision main spindle.
Full ball ceramic bearings
One side of the full ball type full bearing has a notch, because of no cage design, it adds more ceramic ball than the standard structure of the bearing, thereby increasing the loading capacity, in addition to avoiding material limitations.