View Full Version : Grinding wheel

03-19-2016, 06:42 PM
I need the radius for the four bolt mounting on this type wheel.



03-19-2016, 07:47 PM
Its not a radius, its a standard countersink screw. AFAIK the grinders usually come with those screws in the mounting plate?

Pretty sure they are standardish machine screws.

Protip: You can adjust runout by changing the order you tighten the screws. Those countersinks don't align things perfectly. every 0.001" counts when it comes to diamond wheels you have to dress down..

PS: Im pretty sure other places have 1/8" thick wheels for MUCH MUCH cheaper then that 1/16" thick wheel (thickness of diamond layer). I recall buying one years ago for like $80 so they must(haha..) be a lot cheaper now. There is a lot to be said for quality of binder and density of diamonds in the binder however, but that wheel is 75 concentration like my wheel so I suspect its not much better.

J Tiers
03-19-2016, 07:55 PM
He'll be wanting the bolt circle dimension...... which they do not seem to give, but I bet there is a standard somewhere.

Forrest says here that it is a 3 1/4" bolt circle:


03-19-2016, 07:56 PM
Here you go-

Says it's a 3-1/4" bolt circle assuming it fits a Baldor tool grinder mount.

03-19-2016, 10:42 PM
Yes, Bolt circle is what I was after...

Thank you

03-19-2016, 10:49 PM
Yes, Bolt circle is what I was after...

Thank you

Ah sorry, thought you meant on the screws themselves.