20.4:1 Metal Gearmotor 6V 25Dx50L mm HP, 1572

This gearmotor consists of a high-power, 6 V brushed DC motor combined with a 20.4:1 metal spur gearbox. The gearmotor is cylindrical, with a diameter just under 25 mm, and the D-shaped output shaft is 4 mm in diameter and extends 12.5 mm from the face plate of the gearbox.

• Key specs at 6 V: 460 RPM and 550 mA (max) free-run, 75 oz-in (5.5 kg-cm) and 6.5 A stall.