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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.
|Motor Voltage||3-12 V|
|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)|
|Shaft Diameter||7 mm (0.3 in) two sides flattened|
|Weight||30 g (1.08 oz)|