Acceptable wobble in grinding wheel?

[Dan Forman]

Welcome to Anal Corner! I mentioned some time ago having bought a new Norton SG series grinding wheel, which caused my likewise new bench grinder to do a bit of a dance after installation. The stock wheels were dead true, with no vibration or discernable movement. Since that time, I purchased the Oneway balancing system, which tamed the vibration quite a bit, but there is still a bit of side to side wobble present. . Having recently mounted a sharpening jig, I have a way of measuring the wobble which comes out to a variation of .018 between innermost and outermost travel of the wheel relative to the side of the jig.

I had resigned myself to live with the residual wobble, but the jig makes it much more noticable. So my question is, should I return this wheel, or am I just totally nuts to worry about such a small amount of travel? I'm obviously still in the process of learning what tolerances apply to woodworking equipnment.

I have a diamond dresser to dress the cutting edge of the wheel, but this is clearly a case of the sides being out of whack, perhaps the center hole is not true to the rest of the wheel. The wheel balancing system provides a very solid aluminum arbor flange with no play in it, so it would seem the problem lies in the wheel itself. I haven't actually used the wheel yet, having been focused on other projects, but now I want to get into some serious sharpening.

Thanks for your help.

Dan

[Mike Cutler]

Return the wheel. I have never used a grinder that had any sort of wobble at all., or didn't run true.
It's not being anal, it's being safe. I would worry about a wheel that was wobbling having a void in it, or some sort of latent imperfection.

Bottom line, it shouldn't wobble at all, just like the one that came with the grinder. My .02 fwiw

[Chris Barton]

I'm with Mike, take it back. Completely unaceptable.

[Dar Lounsbury]

RETURN IT.

Grinding wheels have been known to fly apart, which would probably really hurt. Why take any chance.

[John Miliunas]

Ditto to what the other guys have said, Dan! I've seen one disintegrate and, while the guy was pretty lucky that it mainly blew off to the side, it still wasn't a pretty picture! Get a replacement before even using it!

[Jim Becker]

The OneWay wheel balancing system deals with it very nicely...