NMRV+NMR 1)High accuracy worm gear worm shaft 2)Less noiselower temperature increase 3Easy mounting, linking, high efficiency ... 1. Trassimision Ration:2.Configuration: worm shaft,worm gear,bearing,oil seal,housing3.Function: reduce4.Power Source ... and Others Industries10.Inner packing: Carton Outer packing: Wooden cas wind turbine gearbox NMRV and NMRV