Jim,
Can't help with how to get the bearing apart again, but I suspect that
the rollers are tapered and you have at least one in backwards. Is there
a lip at the small end of the inner race that could be causing the
rollers to hang? Try rotating the race to see if the rollers will let
go. If the bearing seems to have some play in some of the rollers you
might be able to use a paper clip or similar pick to lift each of the
rollers from behind the lip on the race.
Using compressed air should not be used to spin bearings, as you have
found. I've seen some other ones come apart, but as I recall the main
reason to not do it is that, even though they are not under load when
you spin them up, the lack of lubricant can cause damage to the
rollers/balls and races. Not sure exactly how this happens, but I have
heard it from more than a few sources, so I put at least enough stock it
to not spin them with air!
Peace,
Pat
Thusly spake Jim Franklin, On 4/1/2010 5:07 PM:
> One of the motorcycle swingarm bearings was a little notchy so I thought I'd
> grease it. They're tapered rollers. Cake, right? Unable to pull the inner race
> out because of the seal stiction, I used the puller. Came out fine. Cleaned it
> up, hit it with compressed air and was almost done when the air hit that sweet
> spot and rollers went EVERYWHERE.
>
> Picked them all up and cleaned them and found the plastic cage and greased
> everything. Snicked the bearing-laden cage onto the inner race. Pushed it into
> the outer race which was still in the swingarm. It didn't go in all the way.
> Tap tap with a plastic hammer. Nothing. Hm. Tried pulling it out. Nothing. Got
> the puller again. Nothing. Pulled REALLY HARD and the outer race came out.
>
> Somehow I managed to wedge the rollers in the races so that they can't come
> apart. They seem stuck between the bottom of the inner race and the top of the
> outer race. Anyone debugged this before?
>
> List for a new one is $62. It'd be real nice if I could fix this one...
>
> thanks,
> jim
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--
Pat Horne, Owner, Horne Systems
(512) 797-7501 Voice 5026 FM 2001
Pat@HorneSystemsTx.com Lockhart, TX 78644-4443
www.hornesystemstx.com
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