100:1 Micro Metal Gearmotor HP with Extended Motor Shaft

These tiny brushed DC gearmotors 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.
The micro metal gearmotors are available in a wide range of gear
ratios—from 5:1 up to 1000:1—and offer a choice between two different motors:
high-power (HP) and standard. With the exception of the 1000:1
gear ratio versions, all of the micro metal gearmotors have the same physical dimensions, so one version
can be easily swapped for another if your design requirements change.
Please see the micro metal gearmotor comparison table for detailed
specifications of all our micro metal gearmotors.

This dynamically-sortable table
can help you find the gearmotor that offers the best blend of speed, torque, and current-draw for your
particular application. A more basic comparison table is available below.

Some versions of the gearmotors are sold with an additional 1mm-diameter output shaft that protrudes from the rear of the motor.
This 4.5mm-long rear shaft rotates at the same speed as the input to the gearbox and
offers a way to add a custom-built encoder to provide motor speed or position feedback.
 

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