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Solarbotics GM6 120:1 Mini Gear Motor Offset Output


$10.68 AUD, inc GST
$9.71 AUD, exc GST

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Solarbotics GM6 120:1 Mini Gear Motor Offset Output
10.68 AUD


$10.68 AUD, inc GST
$9.71 AUD, exc GST
Shipping Offer


  • $6.95 Standard (2-4 days, tracked)
  • $8.95 Express (Overnight*, tracked)
  • $3 Economy Post* (3-7 days, no tracking)
  • FREE Pickup (Newcastle only)

Shipping costs may increase for heavy products or large orders.

Exact shipping can be calculated on the view cart page.

*Conditions apply, see shipping tab below.

This 120:1 brushed DC gearmotor is very compact and weighs only 0.7 ounces (20 grams) — perfect for building a quick, miniature robot.

This gearmotor starts rotation at 0.58 V, drawing only 46.5 mA at 7 RPM. At 5 V, the gearbox and motor provide 20 oz-in of torque and 145 RPM. The free-running current is 88 mA, and the stall current is 610 mA. The low-current motor is a perfect match for Pololu's qik 2s9v1 dual serial motor controller.

This gearmotor comes pre-assembled, with the gears fully enclosed. A clutch limits the output torque to approximately 25 oz-in (which is produced at 6.5 V, drawing 650 mA) to protect the gearbox and motor. The unit has one mounting hole, and the chrome-finish output shaft is splined with a 0.08" (2 mm)-crest diameter.

A custom plastic wheel is available for this gearmotor, as well as a LEGO wheel adapter that allows it to be used with a variety of LEGO wheels.

For a similar, less expensive version of this gearmotor, see the Pololu 120:1mini plastic gearmotor offset output. For a version of this gearmotor with a 90 degree output shaft, see the GM7 gearmotor. For a similar but larger gearmotor, see the GM2 gearmotor (224:1) and the GM8 gearmotor (143:1).


  • Description: Mini offset/inline
  • Gear ratio: 120:1
  • 3 V Operation:
    • No-load RPM: ~ 64
    • No-load current: ~ 64 mA
    • Stall current: ~ 325 mA
    • Stall torque: ~ 13.5 oz-in
  • 6 V Operation:
    • No-load RPM: ~ 157
    • No-load current: ~ 97 mA
    • Stall current: ~ 560 mA
    • Stall torque: ~ 21.1 oz-in
  • Weight: 18 g

Solarbotics GM6 gearmotor dimensions (in mm).

You can download a pdf version of this drawing with imperial dimensions (99k pdf) or metric dimensions (99k pdf).

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

Documentation and Resources:

Product Comments

Exact shipping can be calculated on the view cart page (no login required).

We deliver Australia-wide with these options:

  • $3 for Small Items (3-7 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.95 for Express Post (Overnight for Australia Post Next Day Network, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
NSW, 2289

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!