

Solarbotics GM3 224:1 Gear Motor 90 deg. Output
This 224:1 gearmotor (gearbox with brushed DC motor) has a low-current motor and provides power and speed that is comparable to an RC servo at a fraction of the cost.
This 224:1 gearmotor (gearbox with brushed DC motor) is a great low-cost alternative to modified hobby servos or Tamiya gearboxes. The low-current motor is a perfect match for our qik 2s9v1 dual serial motor controller, and the compact size makes this unit an attractive choice for small robot designs.
This gearmotor comes pre-assembled, with the gears fully enclosed. There are built-in mounting holes, and the output shaft is 7mm in diameter with two sides flattened (the “D” output is not meant to be used). A built-in safety clutch engages at approximately 60 oz-in.
Compatible products include a custom-molded GMPW plastic wheel, and the Solarbotics GMW motor mount, which can be used as a wheel itself or as a mounting point for other wheels or mechanisms. A mounting bracket is not required but can be purchased separately for more versatile installation.
For similar gearmotors, you might want to take a look at:
To increase the power of this gearbox, you can replace the motor with a higher-power RM2 motor. For a replacement motor, see the RM3 motor.
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Solarbotics GM3 gearmotor dimensions (in mm). |
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You can download a pdf version of this drawing with imperial dimensions (126k pdf) or metric dimensions (126k pdf).
Though the product picture shows two gearmotors, this product is for a single motor.
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Solarbotics GM2 224:1 Gear Motor Offset Output |
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Solarbotics GM7 120:1 Mini Gear Motor 90 deg. Output |
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Tamiya 70103 Universal Gearbox Kit |
Data sheet
Manufacturer BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
Responsible person BTC Korporacja sp. z o. o. Lwowska 5 05-120 Legionowo Poland sprzedaz@kamami.pl 22 767 36 20
DC motor with 1:84 planetary gear with a supply voltage from 6 to 24 V and a rotational speed of 140 RPM. Maximum current consumption up to 1.3 A. SparkFun ROB-15277
Solarbotics GM6 120:1 Mini Gear Motor Offset Output
This tiny, cylindrical gearmotor consists of a coreless brushed DC motor and a 26:1 plastic planetary gearbox. The entire assembly has a diameter of just 6 mm (0.24″) and an extremely light weight of 1.2 g (0.042 oz), making it a great actuator for miniature robots and very small mechanisms.
Key specs at 6 V: 2500 RPM and 35 mA free-run, 1.5 oz-in (0.1 kg-cm) and 400 mA stall.
No product available!
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No product available!
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DC motor with a two-sided shaft with built-in 48: 1 gearbox.
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No product available!
High-power brushed DC motor, 120:1 reduction gearbox, intended for operation at 4.5 V, 9.7mm-long gearbox, 3 mm-diameter D-shaped output shaft that is offset from but parallel to the motor shaft, built-in safety clutch. Pololu 1512
No product available!
DC motor equipped with a gear ratio 120: 1, powered by 6V with a torque of 0.8 kg * cm (0.08 Nm). The current consumed by the unloaded motor is about 170mA, while the maximum current drawn under load is 2.8A. It has an integrated quadrature encoder. DFRobot FIT0450
DC motor equipped with a metal gear 1:90 with a cut shaft on both sides
This compact, inexpensive plastic gearmotor (high-power brushed DC motor with a 120:1 reduction gearbox) is well suited for use in small robots. While intended for operation at 4.5 V, it should run comfortably in the 3 V to 6 V range.
A small motor with a plastic gear 120:1, operating voltage 4.5 V, current consumption from 0.08 A to 0.8 A, speed 120 RPM and a maximum torque of 1.4 kg*cm. Pololu 1122
Solarbotics GM9 143:1 Gear Motor 90 deg. Output
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DC motor with plastic gear 1:48. Equipped with an incremental encoder with Hall sensors.
Solarbotics GM3 224:1 Gear Motor 90 deg. Output