The item is a professional and practical 3V-6V DC short shaft torque gear box motor, which is mainly made of durable hard metal materials, and features no-load rotating up to 40+/-10% . With easy and safe to use, it is a wonderful DC gear box motor for choice. Features - - Material: durable hard metal. - Overall size ( W ): Approx. 1.3 x 0.5 x 0.4inch / 3.2 x 1.2 x 1cm. - Shaft Length: Approx. 0.25 inch / 6.35 mm. Shaft Diameter: 0.12 inch / 3 mm - and DC Short Shaft Torque Gear Box Motor. - Voltage range: 3V-6V DC. - No-load rotating speed: 40 ±10% . - Ambient temperature: -5°C - 40°C. - Rotation direction: Positive pole to "+" contact; Negative pole to "-" contact. - Idle current: 0.018A (0.036A Max.). - Load torque: 0.5kg. cm. - Load current: 0. (0. Max.). - Load rotation: 31.4 ±10% . - Rotor current: 0.29A. - Rotor torque: 2.3kg. cm. - Axial play: 0.3mm or less. - Motor idle current: 0.030A. - Motor idle rotation speed: 11500±10 % . Package list: 1 * 3V-6V DC Short Shaft Torque Gear Box Motor