Product Description High Precision Spur Gear Power Transmission Motor Planetary Gearboxes Planetary gearbox is a kind of reducer with wide versatility. The inner gear adopts low carbon alloy steel carburizing quenching and grinding or nitriding process. Planetary gearbox has the characteristics of small structure size, large output torque, high speed ratio, high efficiency, safe and … Continue reading China supplier High Precision Spur Gear Power Transmission Motor Planetary Speed Reducer gearbox engine