worm reducer with hollow shaft,motor direct connection Credible quality Delivery in time Long life time WJ series worm reducer with hollow shaftRV series worm gear reducer1.Ratio:7.5-1002.Configuration:worm shaft,worm gear,bearing,oil seal,housing,worm wheel,coupling flange,oil gauge,oil plug3.Function:reduce speed4.Power source:electrical5.Characteristics:Less noise and lower temperature ...