Motovario NMRV worm reducers have led the industry in design innovation for more than 20 years. By using aluminum housings, Motovario can produce worm reducers that are maintenance-free, have low occurrences of leaks, run at higher efficiency and are easier to handle than standard cast-iron worm reducers. Using two bearings on the input shaft, o-rings instead of paper gaskets and painting the reducers limits problems caused by leaks, corrosion and vibration. Motovario also hardens all worm shafts to improve efficiency and prolong reducer life.