20 To 1 Planetary Gearbox Reducer For Nema 23 Stepper Motors With 57 To 83 mm Body And 20 Arcmin Backlash 8 mm Input Shaft 14 mm Output Shaft Beefy Enough For CNC 3D Printer And Lathe Builds Includes Screws Plugs And Key

20:1 Planetary Gearbox for NEMA23, 57-83 mm(2.25-3.27 in)
✔️ 20:1 gearbox, input Ø8, output Ø14, body 57-83 mm(2.25-3.27 in)

This compact planetary gearbox reducer is designed for NEMA 23/24 stepper motors. It’s ideal for CNC routers, 3D printers, and small lathes, delivering strong torque at low speeds with smooth, quiet operation. Includes screws, plugs, and a key for quick mounting.

✅ ✅ Ratio: 20:1 planetary gearbox for NEMA23/24
✅ ✅ Input shaft: Ø8 mm, length 21 mm
✅ ✅ Output shaft: Ø14 mm, length 35 mm
✅ ✅ Body length: 57-83 mm, installation hole distance 47.14 mm
✅ ✅ Weight: 235 g
✅ ✅ Backlash: ≤ 20 arcmin
✅ ✅ Efficiency: ≥ 95%
✅ ✅ Nominal torque: 35 Nm, max torque 70 Nm
✅ ✅ Max input speed: 2000 rpm
✅ ✅ IP65 waterproof and -15°C to +80°C operation

Parámetro	Especificación
Gear ratio	20:1
Input shaft	Ø8 mm, 21 mm long
Output shaft	Ø14 mm, 35 mm long
Longitud del cuerpo	57-83 mm (2.25-3.27 in)
Peso	235 g
Backlash	≤ 20 arcmin
Efficiency	≥ 95%
Max speed	2000 rpm
Environmental	IP65; -15°C to +80°C; 20000 h

💡 What is a NEMA 23 planetary gearbox used for in precision CNC and 3D printer projects? This handy gearhead boosts torque and stabilizes low-speed motion.

- It provides high torque at low speeds for accurate, repeatable motion - It reduces wear and vibration, extending machine life - It keeps motion smooth and quiet in compact setups - It seals out dust and grime in workshop environments