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