^^^
You're confusing the axle bearings with the two cartridge bearings in the right end of the cassette body. Campy really doesn't consider the cassette body to be repairable and they do not sell replacement bearings, but the bearings can be replaced.
There is a circlip holding the bearings in place. It's tricky to get the clip out, but once done the bearings can be pressed out from the right side, toward the left (inside). It requires two 6803 bearings.
Last edited by DaveSSS; 05-23-09 at 02:20 PM.