5:1 Planetary Gearbox for NEMA 17 Stepper Motor 30 Arc-Min Backlash 9.5mm Shaft Compact Precision Reducer

Planetary Gearbox 5:1 for NEMA17 Stepper Motor 1 Pack
✔️ 30 Arc-Min Backlash 9.5mm Shaft Length

This 1 pack planetary gearbox is built to pair with NEMA 17 stepper motors when you need more torque and tighter motion control in a compact setup. With a 5:1 reduction ratio and 30 arc-min backlash, it is a handy add-on for 3D printers, small CNC machines, and robotics projects where space is tight but precision matters.

✅ Pack size: 1 planetary gearbox
✅ Gear ratio: 5:1 reduction
✅ Backlash: 30 arc-min
✅ Output shaft length: 9.5 mm, 0.374 in
✅ Compatible with standard NEMA 17 motor frames
✅ Compact planetary design for smooth torque transfer
✅ Mounting pattern matches NEMA 17 for easy integration

💡 How does a 5:1 planetary gearbox improve torque and positioning accuracy in NEMA17 stepper motor systems?
It reduces speed while multiplying torque and tightening motion response.

• Increases output torque by reducing motor speed

• Improves positioning control with lower effective step resolution

• Helps maintain compact drive length compared to belt systems

• Enhances repeatability in robotics, printers, and light CNC axes

If you want stronger torque and cleaner positioning without making your build bulky, this 5:1 planetary gearbox is a solid upgrade for your NEMA17 setup.