Planetary Gearbox For Nema 23 Stepper Motor 20 To 1 Gearhead With Backlash Under 12 Arcmin, 40 Nm Peak Torque At 4000 RPM, 14mm Output Shaft, Input Shafts 8mm Or 6.35mm, Flange 57mm, 58mm Body, CNC Ready Reducer Box

NEMA23 Planetary Gearbox 20:1, Low Backlash, Single Unit
✔️ 20:1 ratio, 58mm body, 14mm shaft; inputs 8mm or 6.35mm

Compact planetary reducer designed for Nema23 motors (60x60 mm frame) with a 57 mm flange and a 14 mm output shaft. This CNC-ready reducer box delivers high torque in a compact package, with sealed bearings and long-life lubrication, perfect for engravers, milling machines, lathes, and small CNC benches. Pack size: single unit.

✅ Gear ratio: 20:1; Backlash: ≤ 7 arcmin; Peak torque: 40 Nm @ 4000 rpm; Efficiency: 96%; Max input speed: 8000 rpm
✅ Output shaft: 14 mm (0.551 in) diameter; Input shafts: 8 mm (0.315 in) or 6.35 mm (0.250 in)
✅ Flange: 57 mm (2.24 in); Body length: 58 mm (2.28 in)
✅ Max radial force: 240 N (54 lbf); Max axial force: 220 N (49 lbf); Noise: < 58 dB
✅ Material: 20CrMnTi steel with carburizing; Hardness up to ~50 HRC; IP65 rating; Lubrication: long-life grease

💡 What is a planetary gearbox used for in precision CNC motion control?

Planetary gearboxes are handy for boosting torque and precise speed control in tight spaces. - They magnify torque while lowering speed for precise CNC motion - They provide low backlash for repeatable positioning in engraving, milling, and drilling - They fit NEMA 23 motors with multiple input shaft sizes for flexible setups