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used in occasions
such as high-precision rolling bearings,
also can be used for various types of instrumentation and measurem

Silicon nitride ball

Widely used in occasions such as high-precision rolling bearings, instead of the traditional ball; also can be used for various types of instrumentation and measurement head.

Ceramic ball is especially suitable for extremely poor working conditions, such as high temperature, chemical corrosion, erosion and other fluids. Three types of silicon nitride materials in the best overall performance, compared with steel, the main advantage of silicon nitride:

1, more than 60% of light steel;

2, modulus of elasticity than steel 50%;

3, the friction coefficient small, sports good performance;

4, coefficient of thermal expansion of steel, 1 / 3;

5, easy access to a higher finish than steel;

6, high-temperature hardness is 2 times that of steel, and 1000 in the past to maintain the high strength and hardness ;

7, does not rust, can be oil-free lubrication conditions; 8, more than the steel corrosion-resistant chemical.