Steve H Graham
01-16-2020, 7:36 PM
I put CBN wheels on my 8" bench grinder because they are fricking incredible. Problem: the wheels don't mate up with the spacers included with the grinder. The spacers are made for wheels that are about an inch thick all the way across. My CBN wheels have prominent hubs, but they're recessed between the hubs and the outer grinding areas. The wheels work fine if I don't apply a lot of pressure, but if I push too much, they slip because they're not supported correctly.
I'm wondering if anyone else here has solved this problem. I'm more of a metal guy than a woodworker. I kind of wonder if people here have made wooden parts fill the gaps.
Each side of my grinder has an interior spacer which is basically a long tube with a flat disk on the end. The tube must rest on a bearing inside the grinder. I could machine new spacers with deep rims that press against the wheels, or I could make metal rings to fit between the old spacers and the wheels.
The exterior spacers are like giant washers that are convex in the middle. I could try similar tricks with them.
I'm a little concerned that whatever I make will introduce runout, but maybe I'm just overly cautious.
423848
I'm wondering if anyone else here has solved this problem. I'm more of a metal guy than a woodworker. I kind of wonder if people here have made wooden parts fill the gaps.
Each side of my grinder has an interior spacer which is basically a long tube with a flat disk on the end. The tube must rest on a bearing inside the grinder. I could machine new spacers with deep rims that press against the wheels, or I could make metal rings to fit between the old spacers and the wheels.
The exterior spacers are like giant washers that are convex in the middle. I could try similar tricks with them.
I'm a little concerned that whatever I make will introduce runout, but maybe I'm just overly cautious.
423848