Bearings, Bushings, Seals
Lip Seals and O-Rings: when these start leaking, severe damage to more expensive parts becomes just a matter of time. Damage to bushings and shafts results rapidly.
Bushings or Rotary Joints
Wear to these components can result in leaking o-rings and lip seals, overburdening the transmission, with possible loss of the main shafts.