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+--- Thread: Grinding wheel arbor question (/thread-4609.html)
Grinding wheel arbor question - rleete - 11-03-2024
As shown elsewhere, I bought a cup grinding wheel. It needs an arbor.
I have a length of 12L14 that I will be using to make said arbor. It goes into a 20mm (.787") hole in the wheel. As the stock is only 1" diameter, this doesn't leave much in the way of a flange to support the wheel. I plan on adding large (~2") washers either side of the wheel to help support it and distribute the forces more evenly. My problem stems from the fact that I don't seem to have any suitable steel available.
My question is, will aluminum (.13" thick) be strong enough to support the wheel, of do I need to get some steel? Note that this wheel is to be used on the mini mill, so maximum speeds will be well under 1100rpm.
RE: Grinding wheel arbor question - EdK - 11-03-2024
Can you get some 3/4" fender washers from the hardware store and bore them out to 20mm?
Maybe stack a couple together to get a thicker washer.
Ed
RE: Grinding wheel arbor question - rleete - 11-03-2024
I can. I was trying to avoid a trip to the store. I'll buy them on my way home from work tomorrow.