Other Machine HardwareChina 3mm Shaft 12mm Spur Gearbox N20 3V 6V 12V 24V 18rpm 30rpm 100rpm Solar Door Lock DC Electric Gear Micro Mini Motor, Find details about China DC Gear Motor, Brushless DC Motor from 3mm Shaft 12mm Spur Gearbox N20 3V 6V 12V 24V 18rpm 30rpm 100rpm Solar Door Lock DC Electric Gear Micro Mini Motor