... box 2.Vertical distance between the centers of worm shaft and gear varies from 25mm to 150mm With years ... strong output torque Structure: base-mounted, input shaft, input flange, additional single or double output shafts Compact mechanical structure, light weight, ... E motor flanged coupling with worm extension shaft,NRV-E with double extension worm shaft, Power0.06----15KW Single unit reduction ratio ...