High Torque Planetary Gearbox Reducer With 100 To 1 Gear Ratio For 80mm Servo Motor 19mm Input Shaft 20mm Output Shaft Backlash Under 12 Arcmin 750W Power 136mm Body 3500RPM CNC Lathe Gearbox
✔️ 100:1 ratio, 56N torque, backlash ≤12 arcmin, 3500RPM
This planetary gearbox reducer is designed for an 80mm servo motor, featuring a 19mm input shaft and a 20mm output shaft. It delivers strong torque at low speeds, ideal for compact CNC setups such as engravers, milling machines, lathes, and grinders. The 136.5mm body length keeps the unit compact while handling up to 750W input power with high efficiency, and it’s built from wear‑resistant 20CrMnTi steel with hard hobbing and carburizing to minimize tooth chipping.
✅ Gear ratio: 100:1 for high torque at low speed✅ Input shaft: 19mm; Output shaft: 20mm; fits 80mm servo motors
✅ Max input speed: 6000rpm; Rated input: 3500rpm
✅ Backlash: <= 12 arcmin; Full-load efficiency: 94%
✅ Torque: 56N; Body length: 136.5mm (5.37in)
✅ Material: 20CrMnTi steel; carburized gears for wear resistance
✅ Includes: 1 gearbox, 4 screws
💡 What is a planetary gearbox used for in CNC machines? Planetary gearboxes provide compact, high-torque drive solutions for precise motion control in CNC setups. - Handy high-torque at low speeds for engraving, milling, turning - Low backlash improves accuracy and repeatability in CNC drives - Fits 19mm input shaft and 20mm output shaft on 80mm servo motors - Great for space-limited CNC rigs where speed isn’t the main goal