Ratio 10:1 Planetary Gearbox for Nema 17 Stepper Motor 42-40mm Backlash 15 arcmin Input Shaft 10.8mm φ5mm Planetary Reducer for 86 Step Motor incl. 4 Screw 2 Plug 1 Key CNC 3D Printer Lathe

10:1 planetary gearbox for NEMA 17 motors, compact 42x40mm body
✔️ Single unit, for CNC, robotics, and 3D printers; 15 arcmin backlash

✅ Nominal output torque 45Nm (6372.54 oz-in)
✅ Moment permissible torque 90Nm (12745.07 oz-in)
✅ Backlash ≤ 15 arcmin
✅ Efficiency ≥ 96%
✅ Nominal input speed 1000 rpm; Max input speed 2000 rpm
✅ Input shaft Ø5 mm (0.196 in), length 10.8 mm (0.425 in)
✅ Output shaft Ø8 mm (0.315 in), length 21.5 mm (0.846 in)
✅ Body size 42x40 mm (1.66x1.58 in), mounting hole distance 31 mm (1.22 in)
✅ Weight 235 g (0.518 lb)
✅ IP54 waterproof, operating temp -10 to 90 C
✅ Lifetime up to 20000 hours

💡 What is a planetary gearbox used for in precision motion control applications?

Planetary gearboxes are handy for high torque in tight spaces with smooth, repeatable motion. Handy for precise positioning in machinery that runs fast or under load.

- high torque density in a compact form - low backlash for accurate positioning - efficient energy transfer for steady motion