The grinding wheel is a circular bonded abrasive tool with a through hole in the center made of abrasives and binders.
Take the following product code as an example: 41-A30Q4BF MAX SPEED R.P.M.
41, according to international convention, refers to:
T41- Parallel Grinding Wheel, T42- Cymbal Cut-off Grinding Wheel, T27- Cymbal Grinding Wheel
A means Abrasive:
A- Brown Corundum,
WA- White Corundum,
C- Black Silicon Carbide,
GC- Green Silicon Carbide,
AC- Mixed Abrasive,
SA- Single Crystal Corundum,
MA- Microcrystalline Corundum,
BA- Black Corundum,
ZA- Zirconium Corundum,
PA- Chrome Corundum,
FA- Semi-Brittle Corundum,
SG- Ceramic Corundum,
SC- Cubic Silicon Carbide,
BC- Boron Carbide,
D- Diamond
30 means Abrasive Grit: 16, 20, 24, 30, 36, 40, 46, 54, 60, 70, 80, 90, 100, 120, 150, 180, 220 (the finest is called micro powder)
Q means Grinding wheel hardness: F, Q, H, J, K, L, M, N, P, Q, R, S, T, Y
4 means Organization number: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 based on the volume ratio of the abrasive in the grinding wheel
B means Bond type
F means Enhanced type
MAX SPEED Maximum allowable linear speed (m/s)
R.P.M Maximum allowable rotational speed (rpm)
