Choosing The Right Grinding Wheel : Modern Machine Shop
A wise precaution is to be sure the spindle rpm of the machine you're using doesn't exceed the maximum safe speed of the grinding wheel. Always use a wheel with a center hole size that fits snugly yet freely on the spindle without forcing it. Never attempt to alter the center hole. Use a matched pair of clean, recessed flanges at least onethird the diameter of the wheel. Flange bearing surfaces must be flat .