●● Compared to steel balls, the main advantages of silicon nitride balls are:

1. Weighs 59% less than steel balls, significantly reducing the centrifugal force, abrasion, and wear on the raceway during high-speed and acceleration operation of the bearing.

2. The modulus of elasticity is 44% higher than that of steel, meaning the deformation is significantly less than that of steel under load.

3. Higher hardness than steel, reaching HRC 78.

4. Low coefficient of friction.

5. The coefficient of thermal expansion is 1/4 that of steel, capable of withstanding drastic temperature changes.

6. Achieves an almost perfect surface finish with a Ra value of 4 to 6 nanometers.

7. High Temperature Resistance: Silicon nitride ceramic balls maintain high strength and hardness at temperatures up to 1050°C.

8. Rust-free, capable of operation under oil-free lubrication conditions.

9. More resistant to chemical corrosion than steel.

10. Metal-free contamination.

11. Non-magnetic

12. Electrical Insulation.

13. No adhesion wear present.

The combined superior properties make silicon nitride a material of choice for high-performance bearing rolling elements.

●●Application:

Silicon nitride ceramic balls are suitable for various bearings with stringent performance requirements: high-speed/ultra-high-speed bearings, high-precision bearings, vacuum bearings, high/low temperature bearings, non-magnetic bearings, and high-precision ball screws; they can also be used as valve balls and measuring balls in chemical process pumps, high-temperature pumps, and metering pumps.

Silicon nitride ceramic balls are generally assembled into mixed bearings and can be used in industries such as aviation, as well as in other fields like chemical, metallurgy, food, oil fields, and electronics.

●● Product Features: Consistent performance, high stability, meets ASTM F2094-03a standards.

Product Specifications: 0.4mm to 100mm.

●● Available Grades: G3 to G40.

●●Note:

1) Primarily in black silicon nitride balls.

2) We have a large stock available to meet immediate shipping requirements.

3) We can accommodate various non-standard size and specification requirements.