[Shotimes] Vibration or picky...replaced bearings...screwed...more screwed?

[Kevin & Cheryl Airth]

To prevent bearing damage during installation I use this tip: After removing
the old bearing (Usually with a hammer and brass punch)I take it to a bench
grinder and just slightly reduce the outer diameter. Grind enough off so it
will now slide into place without any interference. Now I use this modified
old bearing to install the new bearing. In case the inner race sticks up on
the new bearing I knock out the old bearing until just the outer shell or
race is left. Now you have a properly sized hardened steel shell to press
the new bearing in with. I tend to keep these old modified bearings around
as they are pretty useful for other stuff as well. Anybody can knock out the
old bearing so even if you are paying a shop to install the new one, handing
them the properly sized driver might prevent damage. Of course the guy has
to actually USE it!!
.
.



> > Every sleeved bearing that I've ever pressed required a drift(or
> > punch) the size of the outer race (or extremely close to it!) so
> > that the pressure is exerted on the OUTSIDE of the bearing, not on
> > the inner race.  If the inner race stuck out a bit, you used a
> > hollow drift or one that had a concave part that didn't touch the
> > inner race.