Auto Vacuum Parts Features: 1) Shaft type: solid shaft, hollow shaft, multiaxial shaft 2) Housing type: flange type, bol Auto Vacuum PartsVacuum PartsBearings components ... Shaft(D) Housing type: Flange type(F), Bolt type(S), Nut type(M), Through hole type(T) Cooling Way: No Water Cooling(W), Water Cooling(F) Auto Vacuum ...