... car, mini instrument, financial apparatus, medical device, etc.• 25mm gear motor provide 0.5Nm torque• Voltage range: DC 3V-12V ... length depends on the gear ration• 3.5mm D shaft , shaft length can be customized• Can match with pins, wires, and ... encoders(11ppr)• Reduction ratios & gearbox length:Gear Reduction Ratio Length (mm)Gear Reduction Ratio Length (mm)Gear ...