172:1 Metal Gearmotor 25Dx56L mm HP

172:1 Metal Gearmotor 25Dx56L mm HP
Pololu item #: 1577 81 in stock

Price break Unit price (US$)
1 21.95
10 19.76


backorders allowed

This cylindrical, 2.2" x 0.98" x 0.98" gearmotor uses a brushed DC motor with extra-strong magnets and a 171.79:1 metal gearbox to deliver a lot of power in a relatively small package. These units have a 0.315"-long, 4 mm-diameter D-shaped output shaft. We also carry a lower-power version of this gearmotor.

Key specs at 6 V: 57 RPM and 450 mA free-run, 260 oz-in (18.7 kg-cm) and 6 A stall. (Note: stall torque and current specifications are theoretical values; stalling the motor is likely to damage the gearbox.)

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Pololu 60×8mm wheel on a Pololu 25D mm metal gearmotor.

Pololu 60×8mm wheel on a Pololu 25D mm metal gearmotor.

Dagu Wild Thumper wheel 120×60mm (chrome) with Pololu 25D mm metal gearmotor.

Dagu Wild Thumper wheel 120×60mm (chrome) with Pololu 25D mm metal gearmotor.

Partially disassembled Dagu Wild Thumper 6WD chassis with one of the gearmotors visible.

Partially disassembled Dagu Wild Thumper 6WD chassis with one of the gearmotors visible.