Originally Posted by
smd4
You mean the wear from the inner plate? If there's wear between the pin and outer plate, why doesn't the pin fall out eventually?
C'mon, man. You know better than this. You can't tell me that after working on bikes as long as you have that you actually believe the pins rotate in any way in the outer plates? What, pray tell, would cause such rotation against a press-fit pin? If this is your sincere belief, then we really don't have anything to discuss.
I wouldn't be surprised if there were some slight fretting between the pin and outer plate - there's obviously enough movement that it's necessary to peen the pins, and peening may not be enough to eliminate all movement.