| Abrasive Wheel Grit Size | Superabrasive Wheel Grit Size | Feed depth per pass (Roughing)(mm) | Feed depth per pass (Finishing)(mm) |
| C 501 | 426~126 | 0.10~0.02 | 0.03~.02 |
| C 251 | 151~76 | 0.05~0.02 | 0.02~0.01 |
| C 126/A 126 | 64~40 | 0.03~0.01 | 0.02~0.01 |
| C 76/A 76 | 46~35 | 0.02~0.01 | 0.02~0.01 |
| C 54/A 54 | 40~20 | 0.015~0.005 | - |
| C 40/A 40 | 20~10 | 0.01~0.005 | - |
| C 20/A 20 | 10~5 | 0.01~0.005 | - |
Note
1. C means Green SiC grinding wheel, A means White corundum grinding wheel.
2. Both C and A abrasive wheels hardness code shall be J or L.
3. The abrasive wheel RPM shall be higher than superabrasive wheel RPM. The recommend RPM of abrasive wheel shall be 4-6 times of the superabrasive wheel RPM.
4. Normally, the abrasive wheel diameter shall be bigger than superabrasive wheel diameter.
PS: Do not use small diameter and low RPM abrasive wheel to dress large diameter and high RPM superabrasive wheel.
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