Will your CBN wheels fit/run on my grinder?

Most likely, yes. Almost all 8-inch grinders have a 5/8 shaft, and some (Baldor 8 inch) have ¾ inch shafts. We carry both sizes. Our 6-inch wheels have ½ inch shafts as most 6-inch grinders do. We do carry a step-down bushing from 5/8 to ½ inch for those oddball grinders. Our Radius Edge, Mega Square and 4-in-1 design wheels have hubs that are 1.25 inches wide so they will fit on a 2-inch-long shaft and have room for the self-alignment washer kits. Our Spartan wheel hubs are 1 inch wide and have a 5/8 arbor and 1-inch-long hub. It may be necessary to purchase additional flat washers to make sure the threads on the shaft can reach the Spartan wheel or if it is desired to keep the guard on the grinder. It may also be necessary to have a flat washer between the wheel and the motor to keep the guard on so there is enough clearance.