- Voltage: 5vdc
- RPM: 38
- Torque: 50oz.in (3.6 kg-cm)
- Current: 52mA
- Speed: 360 degrees/1.6 sec
- Reduction: 224:1
- Shaft length: 7mm double-flat (both sides)
- Size: 70x22.5x37 mm
- Weight: 37grams (1.31oz)
These GM3 - Gear Motor 3 - 90 degree Shaft are very comparable to a hobby servo for power, at a fraction of the cost! Fit perfectly with GMPW and GMW plastic wheels.
This gear motor rotate 360 degrees every 1.6 seconds (just a hair slower than a servo), at 5V, drawing 600mA at stall (free running at 52mA). With a 7mm double-flat output shaft (avoid using the "D" output - it's not meant to take rotational load), and a built-in clutch (limiting at 60 in.oz, but easily "locked"), and built-in mounting screw holes, you can see why we like these motors!
Based on the original design by Mark Tilden for use in the B.I.O.-Bugs (GM3 are now used for use in the Robosapien), these motors are the next generation with a variety of improvements such as dual output shafts and a lower current motor.
GM3 - Gear Motors are compatible with the Solarbotics Wheel Watcher Rotation Encoder. Use it if you need to control a robot for dead reckoning, tracking odometry (distance traveled), stalled motor, or closing the feedback loop for position/velocity/acceleration.
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