20:1 Planetary Gearbox for Nema 17 Stepper Motor, Compact 42-51mm Body, Beefy Torque Reduction, Output Shaft Diameter 8mm, Input Shaft Diameter 5mm, 10.8mm Input Length, Beefy Gear Train, Perfect for CNC, 3D Printer, and Robotics

20:1 Nema 17 Planetary Gearbox - Single Unit for High Torque
✔️ 20:1 ratio, input Ø5mm, output Ø8mm, body 42-51mm compact

The compact 20:1 Planetary Gearbox is designed to boost torque and control for Nema 17 stepper motors. Commonly used in CNC machines, 3D printers, and robotics projects, it provides smooth, precise motion and reliable power delivery under load.

✅ Ratio 20:1
✅ Input shaft Ø5 mm, length 10.8 mm
✅ Output shaft Ø8 mm, length 21.5 mm
✅ Body length 42-51 mm
✅ Backlash ≤ 20 arcmin
✅ Rendimento ≥ 96%
✅ Nominal output torque 12 Nm
✅ Moment permissible torque 24 Nm
✅ Velocità nominale in ingresso: 1000 giri/min; velocità Max : 2000 giri/min
✅ Radial 300 N; Axial 100 N
✅ IP54 waterproof; -10℃ to +90℃
✅ Weight 235 g

💡 What is a planetary gearbox used for with Nema 17 stepper motors in CNC, 3D printers, and robotics? This handy gear reducer helps maximize torque and control at low speeds. - Increases torque for precise motion control - Reduces motor speed to handle heavier loads - Provides compact, sealed performance for harsh environments - Widely used in small CNC machines, 3D printers, and robotic arms

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