Wayne Cook wrote:
There must be a better way. Have been considering picking up some
carbide burrs for the grinder. Will these cut through hardened races
quickly? Any better choice of grinding points?


In this situation the best method is to weld a bead on the inside of
the race. I prefer 7018 stick for this but any welding process will
work. The main key is to get the race red hot fast and let it cool.
Once cool it will fall out of the bore. Larger bearings will require
more than one pass.


Wayne Cook

I tried heating with o/a to soften, although the carbide mills didn't
seem to need it. It sounds as though it's not the heat, but the hot
bead shrinking as it cools that does it.

Has anyone used the carbide burrs on something as hard as bearing
races?

John Martin