High efficiency worm gear reducer Aluminum alloy and Cast Iron worm gear reducer,model:NMRV030-NMRV150,ratio speed:7.5-100 Features:1 ... with low noise and lower temperature increase3.High accuracy worm gear and worm shaft4.Installed in multiple surface,hollow output shaft, ... easily5.Compact,light,easy mounting and linking Technical data:1.Worm reducer ranging from 020 to 1502.Speed ratio:ranging from 7 ...