Originally Posted by
bluehills3149
Although I rate this as a desperate measure, you can attempt to grind the cones by spinning them using an electric drill and some sandpaper wrapped around a round object like a pencil or appropriate sized drill-bit. See here:
https://bicycleobsession.wordpress.c...ted-hub-cones/
That is interesting.
Only thing is--you are still using the same diameter ball bearings. So the surface is smooth but it may be too large now?