special motor Electric Gearbox 57 Stepper electronic starter Reducer, Nema 23 Planetary Gearbox, 6.35mm Input 14mm Output Ratio 5:1/10:1/20:1/50:1 for Nema23 Stepping electronic starter (Size : Ratio

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 6.35mm(1/4 inch) 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 .