In the Rega arms, there are 2 sets of bearing. Horizontal, and vertical. Bearing damage when doing re-wiring is most likely to occur, if you hold the arm in such a way, as to place pressure on the arm at the extreme ends of the range of movement, or by twisting the arm tube while holding the yoke. They are delicate, but can take a moderate amount of stress. I don't recommend stressing them at all, though.
Wear is a different matter altogether, and might happen if dirt gets into the bearing somehow, or if your cartridge is causing a "chatter" condition. Possibly if something is causing pressure on the system in a certain direction. And, transporting the turntable with the counterweight still on the arm tube, can cause damage, if it subjected to inordinate bumping or vibration from driving in a car.
My advice is to let someone that knows what they are doing, to handle this job.
Wear is a different matter altogether, and might happen if dirt gets into the bearing somehow, or if your cartridge is causing a "chatter" condition. Possibly if something is causing pressure on the system in a certain direction. And, transporting the turntable with the counterweight still on the arm tube, can cause damage, if it subjected to inordinate bumping or vibration from driving in a car.
My advice is to let someone that knows what they are doing, to handle this job.