This is a 150 RPM low-cost single shaft DC geared motor. It is most suitable for lightweight robots requiring small power. This motor can be used with a 69mm Diameter Wheel for Plastic Gear Motors and an 87mm Diameter Multipurpose Wheel for Plastic Gear Motors. The Driveshaft has a clutch for non-continuous protection from overload which protects gears from sudden overload. Motor runs smoothly from 2V to 12V and gives a wide range of RPM, and torque. The table below gives a fairly good idea of the motorâs performance in terms of RPM, no-load current as a function of voltage and stall torque, and stall current as a function of voltage. Shaft length: 7 mm Motor Design: L-Shaped Shaft Diameter: 5.5 mm Size: 55 x 48 x 23 mm. Operating Voltage: 3 to 12V Current (without loading): 40-180mA RPM: 150 rpm Output Torque: 0.8 kg-cm. Cost-effectiveness of the injection-moulding process. Elimination of machining operations. Low density: lightweight, low inertia. Uniformity of parts. Capability to absorb shock and vibration as a result of elastic compliance. Ability to operate with minimum or no lubrication, due to inherent lubricity. The relatively low coefficient of friction. Corrosion-resistance; elimination of plating, or protective coatings. The quietness of operation. Tolerances are often less critical than for metal gears, due in part to their greater resilience. Consistency with the trend to greater use of plastic housings and other components.