I have received 2 white aluminum oxide cup wheels from a friend. They are 4 x1.25.
These wheels have a metal sleeve in them with a .435 arbor hole (correct term?). I have a Black and Decker Bench Grinder whose label says it has a ½ arbor. How do I fit this wheel to my grinder? Do I ream the sleeve to ½? Do I make a new arbor with pillow blocks? If I go that rout, I may design columns to mount the pillow blocks on and cast them out of aluminum.
The wheels are marked max rpm 5730, so I feel they would be safe on the B&D Grinder as it is 3500 rpm.
I would rather adapt them to the B&D Grinder if possible. I would have to make/modify the shields.
If I make a new belt driven arbor, where do I get the cupped washers that go against the wheel? I think the arbor should be made from ½ O-1 or W-1, fitted to ½ pillow blocks and driven by an ac motor(1725 rpm) by way of a 1:2 pulley ratio. I would thread the ends of the arbor 7/16, left hand on one end, right hand on the other. Sound doable?
Chuck