grinding wheel diameter

jpe52 | Posted in General Discussion on November 9, 2021 08:07pm

I just acquired an old Walker-Turner 1750 rpm grinder along with a heavy
cast iron pedestal. Unit works fine, but calls for 7×1 inch wheels. I’d like to
use Norton white AO wheels, but it seems they only come in 6 and 8 inch diameters.
Any reason I can’t just use the 6 inch wheels? The tool rests can easily move in to accommodate the smaller diameter. I’m hoping to use the thing to create hollow
ground bevels on my bench chisels (noting the recent FWW video by Bob Van Dyke…)

Replies

_mj_ | Nov 09, 2021 08:53pm | #1
No reason you can't use a smaller wheel. Check McMaster Carr brfore you give up.
john_c2 | Nov 10, 2021 02:33am | #2
Sooner or later, 7 inch wheels end up at 6 inches. I have 5 inch wheels that started out at 8.

I forget the source, but 7 inch wheels are still being made.
user-1118538293 | Nov 10, 2021 12:03pm | #3
From what I hear, for hollow grinding smaller wheels are better anyway. If someone with actual knowledge will confirm that, you may want to forget about 7” wheels entirely for that purpose.
jpe52 | Nov 10, 2021 12:22pm | #4
Thanks all. Will go for the 6" wheels.
_mj_ | Nov 10, 2021 12:33pm | #5
Smaller diameter hollow grind gives a deeper hollow. Nothing worth preferring IMO.