1000:1 High Power Micro Metall GetriebemotorPololu
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These tiny, high-torque gearmotors have the highest gear ratio of any motor we sell, which makes them a great choice for applications that require extremely low motor speeds. With no load, the 1000:1 micro metal gearmotor HP output shaft turns at approximately 32 RPM at 6 V, and we were able to achieve rotation rates of around 2.5 RPM at 0.5 V on a test unit (note that performance will vary slightly from unit to unit). The lower-power 1000:1 micro metal gearmotor is even slower, with a no-load rotation rate of approximately 14 RPM at 6 V, and we were able to achieve a smooth rotation speed of around 1 RPM at 0.6 V on a test unit.
Note: Because of the high gear ratio, these motors can generate enough torque to damage themselves, so you should avoid stalling them.
These 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.
- Size: 27.5 x 10 x 12 mm
- Weight: 0.37 oz
- Shaft diameter: 3 mm
- Gear ratio: 1000:1
- Free-run speed @ 6V: 32 rpm
- Free-run current @ 6V: 70 mA
- Stall current @ 6V: 1600 mA
- Stall torque @ 6V: 125 oz·in
- Extended motor shaft?: N