Remove bearing cartridge on a Formula RX-142 hub
Ideally you'll need a blind bearing puller to extract the bearing, most decent bike shops should have one handy.  There doesn't appear to be anything preventing removal of the bearing, so the indents are not for bearing extraction. 
If you're lucky you can get in from the back of the bearing and simply punch it out with a hammer and punch, as bearings are simply a press fit.
The tooling indents are most likely for the freehub mechanism removal.  You may have to remove the freehub if you choose to go with the hammer/punch technique; they're not always easy to undo, as most designs tighten under pedalling forces.