I found this tip elsewhere so I can't take credit for it but I've used it twice already and it is very helpful. This only works if you're replacing the bearings (which you should do anyway) since you will ruin one of the bearings. The hard part of removing wheel bearings is getting the first bearing out. You can usually push the spacer out of the way a little bit and tap the bearing out with a drift but this isn't the easiest or best way.
First, take a small screwdriver and pry off the seal of one bearing. Then drill one or several holes in the metal ring that holds the bearings in place. Remove the ring with pliers. Now tap all the bearings to one side, as close together as possible. You can now tap the inner race sideways towards the side with no bearings and it will drop out. (This also explains how bearings are assembled.) The spacer can now be removed and both bearings are easily accessible to tap out of the wheel.
Thanks,
Joe
First, take a small screwdriver and pry off the seal of one bearing. Then drill one or several holes in the metal ring that holds the bearings in place. Remove the ring with pliers. Now tap all the bearings to one side, as close together as possible. You can now tap the inner race sideways towards the side with no bearings and it will drop out. (This also explains how bearings are assembled.) The spacer can now be removed and both bearings are easily accessible to tap out of the wheel.
Thanks,
Joe