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Add toCeramic materials have excellent wear resistance, chemical corrosion resistance, high temperature resistance and antimagnetic properties, etc., can be used in the strip especially harsh environment, and does not pollute the material and environment. Commonly used materials include zirconia (ZrO2), silicon nitride (Si3N4), silicon carbide (SiC), alumina (Al203) and so on.
Precision grade | Ball diameter variation V dws | Spherical error (▲Sph) | Surface roughness(Ra) | Basic diameter tolerance |
---|---|---|---|---|
No more than | ||||
G3 | 0.08 | 0.08 | 0.012 | * |
G5 | 0.13 | 0.13 | 0.02 | * |
G10 | 0.25 | 0.25 | 0.025 | * |
G16 | 0.4 | 0.4 | 0.032 | * |
G20 | 0.5 | 0.5 | 0.04 | * |
G28 | 0.7 | 0.7 | 0.05 | * |
G40 | 1 | 1 | 0.08 | * |
G60 | 1.5 | 1.5 | 0.1 | * |
G100 | 2.5 | 2.5 | 0.125 | ±12.5 |
G200 | 5 | 5 | 0.2 | ±25 |
G500 | 13 | 13 | * | ±50 |
G100 | 25 | 25 | * | ±125 |