210:1 Micro Metal Gear Motor
This gearmotor is a miniature (0.94" x 0.39" x 0.47"), high-quality, high-power motor with 210:1 metal gearbox, similar to Sanyo’s popular 12 mm gearmotors.
These units have a 9.27mm long, and the brass faceplate has two mounting holes threaded for M1.6 screws (1.6 mm diameter, 0.35 mm thread pitch).
- 3mm diameter D shaped shaft
These tiny, high-quality motors are intended for use at 6 V, though in general, these kinds of motors can run at voltages above and below this nominal voltage, so they should comfortably operate in the 3 – 9 V range (rotation can start at voltages as low as 0.5 V).
Lower voltages might not be practical, and higher voltages could start negatively affecting the life of the motor.