Planetary Gearbox Speed Reducer For Nema23 Stepper Motor 3 To 1 Reduction With Low Backlash 15 Arc Min 3000 RPM CNC Ready Tight Torque For CNC Projects Input Bore 6.35 Mm 0.25 Inch Output Shaft 14 Mm 0.551 Inch

Planetary Gearbox 3:1 for Nema23 Stepper, 1pc pack
✔️ 3:1 reduction, backlash ≤15 arc-min, frame 57.5x98mm input bore 6.35mm

Compact planetary gearbox speed reducer designed to mate with Nema23 stepper motors. This compact unit is ideal for CNC mills, engraving routers, lathes, and 3D printers needing low-speed, high-torque output.

✅ Reduction ratio: 3:1
✅ Backlash: ≤15 arc-min
✅ Frame size: 57.5 x 98 mm / 2.264 x 3.858 in
✅ Body length: 72 mm / 2.835 in
✅ Input bore: 6.35 mm / 0.25 in
✅ Output shaft: 14 mm / 0.551 in

💡 What is a planetary gearbox speed reducer used for in CNC applications?

A handy setup for boosting torque at low speeds while keeping precise control.

- Planetary gearhead increases torque with compact size for CNC machines
- Keeps backlash low for repeatable positioning in mills and 3D printers
- Suits Nema23 motor assemblies and tight-tolerance engraving routers
- Durable aluminum housing resists wear in industrial environments
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