How to properly remove bearings from shouldered-axle track hub I am trying to learn the right way to remove bearings from a track hub. The bearings are cartridge bearings pressed into the hub. The axle has a ridge that prevents it from being removed while both bearings are in place.




I know there are bearing pullers like this one from Enduro:



But these require that the axle already be removed.

So what is the proper way to remove these bearings? I know that I can just tap the axle out with a rubber mallet and force one of the bearings out, but I think this would damage the bearing.
With a trapped axle like that you use a hammer, ideally a soft face one or I use a bit of wood as a pad. Hold the block against the axle, tap the block with a hammer. Holding the wheel in your hand rather than blocking it against a solid surface also reduces the impact. You will still probably damage the bearings, so preferably don't do this until you have the replacements.

Arts Cyclery have a video tutorial and the hammer appears about 70 seconds in.

In my experience this is actually easier than the removable axles, because even a decent bearing puller often doesn't work, or work any better than just using a hammer and punch. The small hole in a bike wheel bearing (10mm) is often too small for the puller.

Press the new bearings in carefully making sure you press the outer races not the inner ones.