Mini Metal Gearmotor 26:1 (438 RPM)

This motor has a 3mm D-shaped metal output shaft that matches the Pololu wheel 42x19mm and 32x7mm. The face plate has two mounting holes threaded for M2 screws.

These motors are intended for use at 6V. 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. Lower voltages might not be practical, and higher voltages could start negatively affecting the life of the motor.


  • 25:1 gear ratio
  • 438rpm @ 6V
  • 44mA @ 6V
  • 6 oz inches torque @ 6V

Mini Metal Gearmotor 26:1 (438 RPM) Product Help and Resources

Core Skill: Robotics

This skill concerns mechanical and robotics knowledge. You may need to know how mechanical parts interact, how motors work, or how to use motor drivers and controllers.

2 Robotics

Skill Level: Rookie - You will be required to know some basics about motors, basic motor drivers and how simple robotic motion can be accomplished.
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Core Skill: Electrical Prototyping

If it requires power, you need to know how much, what all the pins do, and how to hook it up. You may need to reference datasheets, schematics, and know the ins and outs of electronics.

2 Electrical Prototyping

Skill Level: Rookie - You may be required to know a bit more about the component, such as orientation, or how to hook it up, in addition to power requirements. You will need to understand polarized components.
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Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • bbase / about 10 years ago / 1

    Will this motor interfere with this?

  • GiladKap / about 10 years ago / 1

    from my experience, these are EMI bombs. Make sure you don't have any non-differential encoders or other sensitive parts in the system.

    • bbase / about 10 years ago / 1

      like this maybe?

    • Dustin Lundquist / about 10 years ago / 1

      Have you tried placing a small ceramic capacitor across the motor terminals?

  • dragonet80 / about 10 years ago / 1

    In description you say it has a 7mm D-shaped shaft, but it is 3mm. And wich reduction ratio is correct 26:1 (title) or 25:1 (features)?

  • doobie / about 10 years ago / 1

    Will sparkfun carry motors that are good for DIY multi-copters?

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