special motor Electric Gearbox Nema 23 Planetary Gearbox, Ratio 5:1/10:1/20:1/50:1 Stepper electronic starter Gearbox, Speed Reducer for 8mm Shaft Nema 23 57 electronic starter (Size : Ratio 20 to 1

It has maximum 15 arc-min backlash. It's an excellent choice for applications that require good accuracy and reliability at an exceptional value. This inline planetary gearbox built-in an input shaft coupling which can match standard 8mm diameter shaft of Nema 23 stepper electronic starter, brushless dc electronic starter and servo electronic starter. and novel box structure, beautiful appearance is made of high-quality aluminum alloy die-casting. Stable operation, low noise, and .