Lenze robust helical gearboxes are characterized by high permissible radial forces, closely stepped speed reduction ratios and a low backlash. They are available in a 2- and 3-stage design with a torque of up to 123910 lb-in (14000 Nm) and a ratio of up to i=370. Planetary, helical and shaft-mounted helical gearboxes are used in numerous industrial applications to produce an axial torque transmission.