Coaxial planetary gearbox 8GP50, - Nominal output torque: 38 Nm - Gear ratio: i = 10, number of gear stages: 1 - Max-Average drive speed 100%: 4000 rpm - D3 output shaft diameter: 22 mm - Keyed shaft DIN 6885 - Backlash: Standard, 7 arcmin - Lubricant: Standard - IP54 protection