Tiny Gearbox w/Motor

This is a really small gearbox using a pager motor and 81:1 gear train to turn 370 RPM from a 5 volt power source drawing 24.6 mA. Stall current at 5 volts is 184mA and provides 3.6 in-oz torque.

See the DIY Robotics: Wheel Sets for some nice wheels that are compatible with this gearbox.

Sizes: 1" wide, 0.564" thick and 1.135" long. The square output shaft measures 0.14" per side. It weighs only 5 grams. The motor has 12" stranded wire leads.

The factory configuration includes stops that allow a total 120 degrees rotation. The motor has a centering spring to provide a fixed "power off" position. Applying DC power will result in a 60 degree swing in one direction. Reversing power swings the output arm 60 degrees from center in the opposite direction. For continuous rotation just remove the self-centering spring and clip the sixty degree stops.

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