Silicon Nitride (Si3N4) G5 Grade High Purity Ceramic balls
High-purity Ceramic ball for Bearings, Wind power etc.
According to demand, we can provide custom-made service.
Silicon nitride ceramic ball bearings have the following advantages:
- Low density, light weight, 59% lighter than steel balls, reducing the centrifugal force during bearing operation, thereby reducing friction.
- The coefficient of thermal expansion is low, 1/4 of that of steel, and it can withstand drastic changes in temperature.
- The modulus of elasticity is 40% higher than that of steel, and there is less elastic deformation after stress, which reduces the vibration of the machine tool.
- Low friction coefficient, high-temperature resistance, and long service life.
- Non-magnetic, electrically insulated, and there is no adhesion and wear.
Our Products and Service:



Shipping Worldwide:
After confirming the order, we will arrange the shipment within 1-3 working days.
We provide free shipping for products purchased above a certain amount.
Tolerance class |
Ra |
||
Rolling surface(max) |
End face(max) |
Chamfer(max) |
|
0 |
0.1 | 0.125 | 1.25 |
Ⅰ |
0.125 |
1.16 |
1.25 |
Ⅱ |
0.16 |
0.25 |
2.5 |
Ⅲ |
0.25 |
0.32 |
2.5 |