I cannot see damaging the bearing,unless you absolutely abuse the arm....Btw,the bearing is very robust....
Just lock the arm-tube in place(with the little latch),and hold the bearing block securely with one hand,while carefully unscrewing the tube with the other hand....It could not be easier!!
Good luck
Just lock the arm-tube in place(with the little latch),and hold the bearing block securely with one hand,while carefully unscrewing the tube with the other hand....It could not be easier!!
Good luck