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Solarbotics GM8 143:1 Gear Motor Offset Output

Solarbotics GM8 143:1 Gear Motor Offset Output


 
Our PriceHK$59.00
CodeAMW-0105-001
Stock 0
Weight 35
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The GM8 is essentially a 143:1 version of the GM2 gearmotor. If you want a bit more speed than what the GM2 will give you, this is the motor for you!

This 143:1 gearmotor (gearbox with motor) is a faster version of the GM2 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 of 2.17" x 1.89" x 0.91" (55 x 48 x 23 mm) 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. Also, the green end of the output shaft should not be used (it is difficult to get to, anyway). 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.

Specifications

  • Description: Offset/inline
  • Gear ratio: 143:1
  • 3 V Operation:
    • No-load RPM: ~ 40
    • No-load current: ~ 50 mA
    • Stall current: ~ 400 mA
    • Stall torque: ~ 44 oz-in
  • 6 V Operation:
    • No-load RPM: ~ 78
    • No-load current: ~ 52 mA
    • Stall current: ~ 700 mA
    • Stall torque: ~ 76 oz-in
  • L x W x H: 55 x 48 x 23 mm
  • Weight: 32 g

Though the product picture shows two gearmotors, this product is for a single motor.

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Dimensions

Size: 55 x 48 x 23 mm
Weight: 32 g

General specifications

Gear ratio: 143:1
Free-run speed @ 6V: 78 rpm
Free-run current @ 6V: 52 mA
Stall current @ 6V: 700 mA
Stall torque @ 6V: 76 oz - in
Free-run speed @ 3V: 40 rpm
Free-run current @ 3V: 50 mA
Stall current @ 3V: 400 mA
Stall torque @ 3V: 44 oz - in

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Documentation and other information

Comparison of Solarbotics Gearmotors (GM Series)

Table comparing specifications for the Solarbotics GM motors that we carry.


File downloads

GM8 performance datasheet(164k pdf)

Dimensions (in)(118k pdf)
Dimension diagram for the Solarbotics GM8 gearmotor in inches.

Dimensions (mm)(117k pdf)
Dimension diagram for the Solarbotics GM8 gearmotor in millimeters.

GM8 Solidworks files(1MB zip)


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