ZHAOWEI planetary gearbox combine planetary gear with DC motor, brush motor, brushless DC motor, stepper motor. Redcution ratio is up to 1500. Outer diameter is from 3.4mm to 38mm. Voltage:1.5-24V. Power: 0.01-40W. Output torque:1.0 gf.cm -50kgf.cm. All specifications can be customized according to customers’ need. The pdf product datasheet provides performance details of these gearboxes. Contact us for sample availability and your custom engineering requirements.