Solarbotics is the sole commercial outlet for these impressive 224:1 gearmotors, which are very comparable to hobby servos for power, at a fraction of the cost!

This model differs from the GM2 in that it has a 90 degree output shaft.

Mechanical Features:

• 7mm output shaft with double-flat outputs
• Secondary output shaft (D) for encoders (not meant for rotational loads)
• Built-in safety ratchet clutch set for 60 in*oz torque (easily modified for full "locked-up" operation)
• Built in mounting holes
• 70.1x22.3x37.7mm (2.76x0.878x1.48")
• 30.5 grams (1.08oz)
• 3-6VDC nominal operation

3V Features:

• 24RPM
• 48.6 in*oz torque
• 40mA free-running current
• 400mA stall current

Based on the original design by Mark Tilden for use in the B.I.O.Bugs & RoboSapien, these motors are the next generation with a variety of improvements such as dual output shafts and a lower current motor.

Do you need to mount something to the shaft of the motor? Try the GMW - it's a very effective platform for a variety uses. Alternatively, you'll also find that a #2x1/4" SMS screw will provide a snug fit for your need.

(Motors are sold individually, wheels are not included)

• [Data Sheet]: Solarbotics Gearmotors Specification Summary
• [Data Sheet]: GM3 Mechanical Drawing - Imperial (PDF)
• [Data Sheet]: GM3 Mechanical Drawing - Metric (PDF)
• [Data Sheet]: GM3 Performance Datasheet PDF (159KB)
• [Data Sheet]: Solarbotics GM3 Solid Model