Beefy Torque Nema 23 Bipolar Stepper Motor With 5 To 1 Planetary Gearbox MG Series 54.5mm Length Low Noise Long Life Built In Shaft Coupling For Easy Swap Backlash Up To 30 Arc Minutes A Solid Cost Effective Precision Drive

Precision NEMA 23 Stepper Motor with MG5 5:1 Gearbox
✔️ 1.20 Nm torque, 5:1 MG5 gearbox, backlash ≤30 arcmin, 54.5mm

This high-torque, bipolar stepper motor ships with a built-in MG5 5:1 planetary gearbox. It’s designed for precise, cost-efficient motion control in CNC rigs, 3D printers, automation gear, and any project needing solid hold with compact form.

✅ Holding torque: 1.20 Nm (169.93 oz·in)
✅ Gearbox: MG5, 5:1, powder metallurgy gears, high efficiency
✅ Backlash: ≤30 arc minutes no-load
✅ Frame size: 57 × 57 mm; Motor length 54.5 mm; Gearbox length 55.5 mm
✅ Output shaft: Φ14 mm with keyway, 34 mm length
✅ Current: 2.90 A per phase; Resistance: 0.90 Ω ±10%
✅ Integrated shaft coupling for easy swap of motor or gearbox

Dimension	Metric	Imperial
Frame size	57 × 57 mm	2.24 × 2.24 in
Motor length	54.5 mm	2.14 in
Gearbox length	55.5 mm	2.18 in
Output shaft diameter	Φ14 mm	Φ0.55 in
Output shaft length	34 mm	1.34 in

💡 What is a handy question to ask about this gear motor setup?

This setup is handy for compact automation projects where strong holding torque and precise step control matter.

- Handy for CNC, 3D printers, and automation requiring reliable steps - Shows how a 5:1 gearbox boosts torque at low speed - Highlights the cost-performance balance with powder metallurgy gears - Emphasizes easy swaps via built-in shaft coupling