Using the trusty whack-it-with-a-drift technique I've done twice before, this time, the bearings have exploded - inner race and balls everywhere, and the outer still stuck in the shell, obviously with no exposed surface to 'catch my drift'.
Is there a way to get the outer shell out without damaging the cups? dremel? my mate's van-spec blind bearing puller?
Or should I just whack out the cups as well and replace? if so, what to replace with? and *can* you just knock them out with a bearing stuck in?
Heat the shell with a hot air gun then the race with a can of spray air? May shrink it enough to easily pull out?
PF30 or BB30? PF30 surely you can just knock the shells out?
BB30 might be a PITA if there's a lip that occludes the outer race from the inside. Did you remember to pop the circlip out of the outside?
PF30 I think - it's a spesh?
If I knock the shells out does that mean new BB? what's the sensible choice?
If it's a specialized I'm guessing it's a SRAM plastic shell in there. Knock em out and fit something with aluminium cups like wheels manufacturing. Then next time you can just change the bearings. With the right tools of course!
A blind puller and slide hammer can be used to remove the outer bearing race. It might pull the bearing out the cup, or pull the bearing and cup out the frame.
Depends how much money you want to spend, cup condition etc. Cheaper PF30 BBs you normally just replace the BB, you can often remove the bearings and press new bearings into the cups if you want.
In the end I didn't have a large enough blind puller so I resorted to a dremel. Wee bit of damage to the plastic shell in the process so we'll see how long it lasts.
Feeling a bit silly though because having done the cutting I realized that during my initial bashing with a drift, I'd shifted the bearings enough that - once I'd removed the inner dust seal from the stuck outer race - I could have got a screwdriver behind them from the same side all along. Doh! Live and learn. 😀
If you're living with pf30 then I'd recommend one of these. Makes removal of bearings much easier.