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The production of silicon nitride ceramic ball for spindle bearing. Ceramic balls are much lighter than steel, centrifugal force and friction is distinctly ball small. This can be in the IKO bearing grease lubrication achieve very high speed, and long service life, low working temperature.
The performance of high temperature bearing sealing material is an important factor to ensure the effective seal, the seal material selection is mainly based on the sealing element, working environment, working medium such as temperature, pressure, use and movement mode. The following basic requirements for sealing material:
1 high temperature bearing wear resistance, no corrosion to metal;
2 oxygen resistant and good anti-aging, durable;
3 high temperature bearing high temperature and low temperature, high temperature decomposition, no softening, at low temperature hardening;
4 high temperature bearing and the working medium to adapt, no swelling, decomposition, hardening;
5 appropriate flexibility and hardness, compression permanent deformation small;
6 high temperature bearing has a certain mechanical properties, such as tensile strength, elongation;
7 easy forming, low price;