Bench Grinding Wheels

[pontiac428]

No, I haven't made one because I can get Deckel adapters off the shelf for $30 apiece. The Shars adapter won't work for you since it has an internal taper for the Deckel spindle, but that's the basic concept. You make a "hat" with a 1/2" bore for your grinder spindle on the inside and a 1-1/4" OD with threads for a nut. The nut has internal threads only. You cinch the nut onto the hat with the grinding wheel sandwiched between, then slip it over your grinder spindle. You can use internal threads on the 1/2" bore in place of a spindle nut, so the "hat" effectively replaces the spindle nut. Recessing the bore will have to be done to suit your grinder's spindle and nut configuration, but the basic idea is really easy. The arbor adapter could even be made of plastic or hardwood; it doesn't carry much load, since the load should be applied perpendicular to the spindle in theory.

 

[pontiac428]

Here's a picture of a "hat"

And a picture of a variation on the theme, this being an inverted setup:

 

[stioc]

Thanks for the info and the pic (second one didn't work). Looks like a 30 min project on the lathe but! with the sandwich design the width of the flange would depend on the thickness of the wheel. So a cup wheel vs. a disk wheel will prob require different flange widths.

 

[pontiac428]

Most 4" wheels are 1/2" thick. A quick browse through a catalog will give you that dimension. Or you can use spacers so you don't have to worry about every wheel you buy fitting perfectly.

Edit: this adapter is shown with two different spacers for wheel thickness:

 

[stioc]

Awesome, I think that'll work! thanks!