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Solarbotics GM9 143:1 90 Degree Shaft Gearmotor
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BR770188 4.33
 

 

This 143:1 gear motor (gearbox with motor) is a faster version of the GM3 gearmotor. It is a great low-cost alternative to modified hobby servos or Tamiya gearboxes. The low-current motor is a perfect match for our micro dual serial motor controller, and the compact size of 2.78" x 1.06" x 0.91" (70.5mm x 27mm x 23mm) makes this unit an attractive choice for small robot designs.

At 5 V, the gearbox and motor provide 43 oz.in. of torque and 66 RPM, which a little faster than a servo. The free-running current is 74 mA, and the stall current is 670 mA. This motor also comes with a built-in clutch.

This gear motor comes pre-assembled, with the gears fully enclosed. There are built-in mounting holes, and the output shaft is 7mm in diameter with two sides flattened. Please note that the output shaft is slightly shorter than on the GM2 and GM3 gearmotors.

A custom molded plastic wheel for this gear motor is available.

For similar gearmotors, you might want to take a look at:

 

 

 

 

 

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Last modified: November 12, 2007