Solarbotics GM3 Gear Motor 3-12V (224:1)

The Solarbotics GM3 Gear Motor has a 224:1 gear ratio with a 90 degree output shaft.

This motor operates from 3-12V and provides an impressive torque of 48.61 oz-in at just 3V. It only consumes 40mA at 3V when free running at 24 rounds per minute.

The shaft on this motor is 7mm in diameter with two sides flattened and matches the Solarbotics Gear Motor Wheels perfectly. A built in safety clutch automatically kicks in at about 60 oz-in of torque. This motor is similar to the Solarbotics GM2 Gear Motor but has a 90 degree output shaft.

Note: please do not attach wheels to the "D" shaped output shaft because it is not designed to take a rotational load.

References

• Mechanical Drawing (Imperial)
• Mechanical Drawing (Metric)

Motor Specifications
Motor Type	Gearbox
Motor Voltage	3-12 V
Gear Ratio	224:1
No-Load Current at 3V	40 mA
No-Load Speed at 3V	24 RPM
Stall Current at 3V	400 mA
Stall Torque at 3V	3.5 kg-cm (48.6 oz-in)
No-Load Current at 6V	50 mA
No-Load Speed at 6V	46 RPM
Stall Current at 6V	710 mA
Stall Torque at 6V	4.1 kg-cm (57 oz-in)
Dimensions
Shaft Diameter	7 mm (0.3 in) two sides flattened
Weight	30 g (1.08 oz)

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