hi,
no problem at all. you can't remove the rear endbell, only the metal cover. loosen the 3 screws of the back. then you loosen the screws of the front endbell.
then, you either push the axle on the rear endbell to loosen the front, or pull it on the front. to finally get the magnet out of the can, you need probably a gripper.
have a look at the carbon or kevlar bonding, if everything is ok. if there is a little damage, you can fix it with super glue.
then you push both bearings, and replace them. the both fit very firm. when you replace the front bearing, push it in carefully, take something to push it in, just touch the outer ring of the bearing (don't damage it).
to get the rear bearing in, is a bit tricky. the front bearing is a 16x8x5mm, the rear a 14x8x4 mm.
some more details on the motor:
http://www.rc-monster.com/forum/show...light=xcelorin
good luck
florian