

Solarbotics GM9 143:1 Gear Motor 90 deg. Output
This 143:1 brushed DC gearmotor is the right-angle version of the GM8 and the high-speed version of the GM3.
This 143:1 gearmotor (gearbox with brushed DC motor) is a faster version of the GM3 gearmotor. It 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 7 mm in diameter with two sides flattened. Please note that the output shaft is slightly shorter than on the GM2 and GM3 gearmotors. This motor also comes with a built-in safety clutch.
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.
![]() |
Solarbotics GM9 gearmotor dimensions (in mm). |
---|
You can download a pdf version of this drawing with imperial dimensions (100k pdf) or metric dimensions (100k pdf).
Though the product picture shows two gearmotors, this product is for a single motor.
![]() |
Solarbotics GM3 224:1 Gear Motor 90 deg. Output |
![]() |
Solarbotics GM8 143:1 Gear Motor Offset Output |
![]() |
Solarbotics GM7 120:1 Mini Gear Motor 90 deg. Output |
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 plastic gear 1:48. Equipped with an incremental encoder with Hall sensors.
DC motor equipped with a plastic gear 48:1 with a cut shaft on both sides and an additional shaft for connecting an encoder
DC motor with plastic gear 1:48. Equipped with an incremental encoder with Hall sensors.
DC motor with a two-sided shaft with built-in 48: 1 gearbox.
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
Solarbotics GM8 143:1 Gear Motor Offset Output
Solarbotics GM6 120:1 Mini Gear Motor Offset Output
Solarbotics GM10 81:1 Geared Pager Motor
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
A small motor with a plastic 120:1 gear, the output shaft at an angle of 90°, 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 1123
DC motor equipped with a metal gear 1:90 with a cut shaft on both sides
Tiny, cylindrical gearmotor consists of a coreless brushed DC motor and a 136:1 plastic planetary gearbox. 500 RPM and 45 mA free-run, 8 oz-in (0.6 kg-cm) and 400 mA stall. Pololu 2358
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
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!
DAGU gearmotors; 4.5V with a no load current of 190mA while possessing a gearbox ratio of 48:1 and a wheel speed of 140 RPM unloaded. axis. ROB-13302
High-power brushed DC motor with a 120:1 reduction gearbox, intended for operation at 4.5 V, 9.7mm-long gearbox, 3 mm-diameter D-shaped output shaft that is perpendicular to the motor shaft, and a built-in safety clutch. Pololu 1511
Solarbotics GM9 143:1 Gear Motor 90 deg. Output