Helical worm gearbox, speed reducer, gear reducer, gear unit Reduction ratio: ... 1:302.40 Output torque: 92~4000Nm MN series helical worm gearbox, speed reducer, gear reducer, gear unitReduction ratio: 1 ... efficiency and loading capability than those of single-stage worm wheel transmission, but also reduces space. Moreover, under ... and variators to meet the different requirements. Helical worm gearbox