Wheel bearings typically just need to be driven out with a drift of some kind. A cold chisel will work, as will an appropriately sized bolt.
The first one is the hardest because you have to drop that spacer sleeve in the hub a little to expose the inner race on the far side. Then you get your drift on it and give it couple of good shots with a hammer to start it out. If you don't like so much violence, You could apply some heat to the hub to make the bearing come loose easier. Work around the inside of the bearing to drive it out evenly.
Placing the new bearings in the freezer and heating the hub makes putting the new ones in pretty easy. Don't forget the spacer between the 2 bearings though.
2004 Rebel 250, 2003 BMW K1200GT (roadburner), 2004 BMW R1200GS(all purpose),
1973 Norton Interstate (in a box in the basement)
1968 Triumph Bonneville