[Shop-talk] Bench Grinder, new grinding wheel

[Steven Trovato]

The grinding wheel on my Grizzly bench  grinder was in need of 
replacement.  It has a 1/2" arbor.  At Sears I found an appropriate 
wheel, but with a larger hole.  It comes with three concentric 
plastic pieces that adapt the hole to smaller sizes.  So, I put this 
all together and the wheel does not seem to be centered.  There is 
enough play in these adapter pieces that I can "adjust" the wheel 
slightly before I tighten the nut.  I can't get it  centered well 
enough like this, though.  So, what's the deal here?  Is this "one 
size fits all" concept just a bad idea?  I'm thinking I should just 
go buy a wheel with a 1/2" hole.  Is that the way to go, or is there 
some kind of special trick to this?  Thanks.

-Steve Trovato
strovato at optonline.net