4 To 1 Planetary Gearbox For Nema 23 Stepper Motor 2.8A For DIY CNC Mill Lathe Router Upgrade High Torque 4.78Nm 60x60mm Frame 56mm Motor Length 43.5mm Gearbox 4 Wire Cable

Compact 4.25:1 Planetary Gearbox for NEMA 23 Stepper - 1 Unit
✔️ Holding torque 4.78Nm, 2.8A/phase, 60x60mm frame, 56mm motor

This compact, integrated motor combines a NEMA 23 stepper with a planetary gearbox, delivering high torque at low speeds. It's a great fit for DIY CNC mills, routers, and automated equipment where precise positioning matters.

✅ Bipolar stepper motor with 4-wire cable: Black, Green, Blue, Red
✅ Step angle: 0.42°
✅ Holding torque: 4.78Nm
✅ Rated current/phase: 2.8A
✅ Gearbox type: Planetary, ratio 4.25:1, efficiency 90%
✅ Backlash at no-load: ≤1.5°
✅ Frame: 60 x 60 mm; Motor length: 56 mm; Gearbox length: 43.5 mm
✅ Shaft: Ø12 mm, length 30 mm, key-way 4x20 mm
✅ Lead length: 500 mm; Leads: 4-wire
✅ Weight: 1.3 kg
✅ Connection: Black(A+), Green(A-), Red(B+), Blue(B-)

💡 What is a planetary gearbox motor used for in CNC machines and automation projects?

Handy overview of practical uses and benefits for builders and makers.

• High-torque, low-speed drive for CNC mills, routers, and lathes
• Compact integration reduces assembly steps and wiring
• 0.42° step angle enables precise positioning with a NEMA 23 frame
• Requires a constant-current or chopper drive controller to prevent damage

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