Planetary Gearbox MGL Series 50 To 1 Reducer For Nema 17 Stepper Motors With 5mm Shaft High Torque Low Noise Long Life Durable Metal Gearbox 42mm Flange Backlash Under 45 Arcmin Built For Smooth Rock Solid Motion

Inline 50:1 Planetary Gearbox for NEMA17 Motors
✔️ 50:1 ratio, 42mm flange, 8mm output, includes 4 screws

This inline planetary gearbox is designed to fit standard NEMA 17 motors with 5 mm shafts, delivering high torque and low noise for precise motion in compact automation projects, 3D printers, CNCs, and robotics. The built-in input shaft coupling ensures easy pairing with 5 mm shafts.

✅ Gear ratio: 50:1 with low backlash
✅ Backlash at no-load: ≤45 arcmin
✅ Frame size: 42 x 42 mm; length 66 mm
✅ Output shaft: Ø8 mm, 21.5 mm long, KeyWay
✅ Input shaft: Ø5 mm; length 21.5-25 mm
✅ Efficiency: 80%; Noise: ≤55 dB; IP54
✅ Max torque: 10 Nm; Moment: 20 Nm
✅ Lifetime: ~20000 hours
✅ In-line design with built-in coupling for 5 mm shafts

💡 What is a planetary gearbox used for with standard 5mm shafts?

A handy solution for precise motion in compact automation gear setups.

- Handy for small CNCs, 3D printers, and robotics - Increases torque while keeping motion smooth and controllable - Pairs easily with NEMA 17 motors thanks to 5 mm input shaft - Long life and low maintenance for ongoing projects