Pololu Metal Gearmotors
We offer a wide (and growing) selection of brushed DC metal gearmotors that will let you choose the optimal torque and speed for your application. The following link will take you to a parametric comparison table that can help you find a metal gearmotor that is just right for your project:
With a cross section measuring only 10×12 mm, these small brushed DC gearmotors are available in a wide range of gear ratios—from 5:1 up to 1000:1—and with four different motors: high-power with long-life carbon brushes (HPCB), high-power (HP), medium-power (MP), and low-power. Versions are also available with an optional extended motor shaft.
Measuring 37 mm (1.46″) in diameter, these brushed DC gearmotors are the largest and most powerful we carry. They are available in a range of gear ratios from 6.3:1 to 150:1 and with 12V or 24V motors. All versions are available with integrated 64 CPR encoders on the motor shafts.