Micro N20 Full Metal Gearbox Gear Motor DC 3V 5V 6V 62RPM Long Screw Shaft Worm Gear Motor Model Aircraft Folding Landing Specification: The new stock N20 micro reduction motor, with worm gear attachment and all-metal gear, was originally used on the folding landing gear of the model airplane. The rated voltage is 5V. The measured reduction motor can run at 3-6V. The reduction ratio of the reduction box is about 1:300, the reduction ratio of the output worm gear is 1:20, and the reduction worm can be pulled out by removing a pin. The reduction output shaft has a diameter of 3mm and a length of 10.7mm. The running sound of this reduction motor is very good, precision machining of gears, micro reduction requires high gear, especially tens of thousands of revolutions of high-speed motor deceleration, slightly almost gear running sound feels loose noise, this high-speed operation reduction box running sound is still very good. Motor measured 3V,5V and 6V voltage speed as follows: Voltage 3V, no-load current 30ma, no-load speed 31 rpm. Voltage 5V, no-load current 32ma, no-load speed 52 rpm. Voltage 6V, no-load current 33ma, no-load speed 62 rpm. The reduction motor weighs about 16g (including worm gear teeth). Package List: Gear Motor x 1pcs