Yeah,
Angle Grinder (with diamond blade + wear goggles!) will work.
One just needs to be careful about cutting too far damaging the axle itself.
I did the REAR bearing on my 1998 528i, the trick is to either:
1. Cutting horizontal grooves on the inner race so the tool has a place to grab.
2. Dremel vs Angle Grinder.
I wrote the DIY below...
DIY: 1998 528i REAR Bearing the Easy Way! - Bimmerfest - BMW Forums