Item Type: Stepping Gear Motor Weight: 75g / 2.6oz Material: Iron, Stainless Steel, Copper Motor Outer Diameter: Approx. 2.18cm / 0.86in Motor Length: Approx. 4.52cm / 1.78in Shaft Diameter: Approx. 0.4cm / 0.16in Gear Ratio: 1:45.2 Applicable: Office automation, home automation, production automation, medical equipment, security equipment, consumer electronics, aeromodelling, automotive electronics field.1Prime Material: Adopts premium metal material, which is durable and not easy to rust, etc. The gear structure of helical gears makes the motor ratio stable and has high mechanical strength, thus prolonging the service life of the gearbox. 2Efficient Work: Strong working efficiency, low dynamic loss, three layer treatment good rust proof, working temperature 80 degree?200 degree. 3Good Performance: Pure copper wire, high accuracy of resistance value, stable and reliable, faster speed, stronger torque with gearbox, small temperature coefficient, can withstand high temperature. 4Superior Conductivity: This gear motor has superior conductivity, is not easy to wear, reduces energy consumption, high efficiency, and long life. 5Applicable Occasion: This motor is suitable for a variety of occasion, such as office automation, home automation, production automation, medical equipment and so on. 1 xGear Motor