I'd hit the bearing back on Mf then clean the axle with sand paper then lever the bearing off with a couple of big screw drivers .If the axle has damage that is stopping the bearing from being removed I would use a file on the axle.
Sometimes you can use some lubricant on the axle and lever the bearing a little bit then hit back on and after doing this a few times it will clean the rust off the bearing so it slides off completely .
Cheers
Max.