This compact, inexpensive, low-current gearmotor (gearbox with motor) offers high rotation speed and decent torque, making it well suited for use in small robots.
At 4.5 V, it has a free-run speed of 120 RPM and a stall torque of approximately 20 oz-in. The D-shaped output shaft has a diameter of 3 mm and works with the Pololu wheels and 3mm universal aluminum mounting hub.
Key specs at 4.5 V: 120 RPM and 80 mA free-run and 800 mA stall current.
Motorgearbox dimensions (units in mm)
120:1 90degree motorgearbox with 90×10 mm wheel mounted