What is this?Widely use for lifts, landing gear, mechanical arm, electronic devices, DIY, RC Aircraft, Model Car, Electric door, etc.What will I get?Voltage: 6V; Speed: 170RPM; Output Shaft Diameter:4mm/0.16-inch; Output Shaft Length: 9.5mm/0.37-inch;Motor Length(Not including shaft): 51mm/2.01-inch; Total size: 67 x 24.5mm/2.64 x 0.96-inch(LxW); Shaft type:D typeIn the package of: 1 x MotorIs there any advantages of the product?Made of copper and steel. It has good wear resistance, high-temperature resistance, and vibration resistance, good reliability, fine craftsmanship, and durable; Metal gear can effectively improve the torque of the motor, is corrosion-resistant, is not easy to rust, and has fast heat dissipation speed; D-shaped shaft, convenient for fixed connectionHow to use it?Steps of installation: 1. Select the gear motor with appropriate specification; 2. Remove the gear motor to be replaced; 3. InstallationWhat should I notice?Please note the rated voltage of the gear motor