This ceramic ball is a high grade silicon nitride ceramic ball with a very bright appearance and a high accuracy level for a wide range of uses, such as: full ceramic bearings, hybrid ceramic bearings, tools and gauges, valve seals, pumps, vans and more.

Compared with steel ball, the main advantages of silicon nitride ball are :

01 59% lighter than steel balls, greatly reducing the bearing high-speed and accelerated operation of the centrifugal force on the groove, crushing and wear;

02 The modulus of elasticity is 44% larger than steel, which means that the amount of deformation in the force is greatly reduced than steel balls;

03 Higher hardness than steel, HRC reaches 78;

04 The coefficient of friction is small;

05 Coefficient of thermal expansion is 1/4 of steel, can withstand drastic changes in temperature;

06 Easy to obtain a high surface finish, Ra can reach 4 to 6 nanometers;

07 High temperature resistance: silicon nitride ceramic ball at a high temperature of 1050 ° C still has a high strength, hardness;

08 Never rust, can work in oil-free lubrication conditions;

09 More resistant to chemical corrosion than steel;

10 No metal pollution;

11 Non-magnetic;

12 Electrically insulated.

13 No adhesive wear;

The combination of these excellent properties makes silicon nitride the first choice for high-performance bearing rolling element materials.