Ok, I went back out to the shop and removed both wheels. No burrs or bumps on either shoulder for either side of the motor. I put my dial indicator on both sides to check shaft runout. Left side, dial never budged from 0.000" and the other side moved to what I'd call 0.0002". I put the flat washers back on first (cleaning everything from shaft to both sides of each washer piece) that came with the spherical washers I ordered from Ken. Then I put on the 80 grit wheel, then both halves of one spherical washer and then the nut to hold it on the shaft. I left it a touch loose, turned on the grinder and it spun up and the wheel lined up pretty good. I did the same for the other side. Wobble with the 220 grit wheel. I put my dial indicator on each wheel (in the flat hub space near the grinding surface, but far enough back to not be effected by those surfaces) and measured each wheel. The dial indicator measured eactly the same for both wheels.....0.015"
The wheels I ordered came from Buffalo Woodturning Products. They look like really good wheels, but I'm lost at this point on how to get these mounted without the side to side wobble.