Aluminium worm reducer models:RV025-RV090;cast iron worm gearboxes:RV110-150,with speed ratio range,1:5---1:100 Aluminium worm reducer models:RV025-RV090;cast iron worm gearboxes:RV110-150,with speed ratio range,1:5---1:100Features:1) High quality aluminum alloy worm reducer,deceleration box, light weight and non-rusting2) Large output torque, stable transmission with lower noise3) High heat- ...