Ahhhh, I misread your post. Sorry!
The only reason I replaced my clutch bearing was because I left the old one in there when I got the clutch sand blasted and powder coated as a sacrificial bearing.
Easiest ways to remove that bearing from the clutch half is either to get two blocks of wood and knock the clutch half onto the wood to let the bearing drop out between the blocks, or get a little punch and gently tap the bearing out from the other side. If you use the second method, be careful not to deform the housing otherwise you may end up needing a new bearing when there was no need for one.
