TT Motor Gearbox – 1:120 Gear Ratio


Availability: In Stock

This “TT” Gearmotor is a compete DC motor and 1:120 Gearbox in one convenient, easy to mount package!


SKU: ROB-223 Category: Tags: ,


Using a basic DC motor to drive a wheel on a robot can be a bit tricky. Small DC motors tend to have a very high shaft speed, very low torque, and no easy way to connect to a wheel. These all in one “TT” Gearbox Motors take care of everything!

The DC motor is coupled to a 1:120 reduction gearbox in an easy to mount assembly. On each side of the gearbox there is a 5.5mm flatted output shaft – these can be used to connect wheels and rotary encoders. The “no load” output shaft speed is approximately 48 RPM at 3V and 100 RPM at 6V. This is the mid-range version of the TT motor we carry – a balance of torque and speed.

These motors cannot be directly driven by an Arduino, Raspberry Pi, micro:bit, or other similar microcontroller or single board computer. A motor driver will need to be used.

Please Note: Wheel and Encoder Disk sold separately.


  • Rated Voltage: 3-6VDC
  • Current Draw: ~150mA
  • Gearbox Ratio: 1:120
  • Torque: ~ -
  • Body Dimensions: 70 x 19 x 22.5mm
  • Weight: 30g
  • Maximum Voltage: ~8VDC
  • Stall Current: ~1.0 - 1.5A
  • Output Shaft RPM: ~48 to 100 RPM
  • Shaft Dimensions: 5.5mm flatted

Package Contents

1 x TT Motor Gearbox - 1:120 Gear Ratio

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  Difficulty Level

Soldering Skill: Beginner
Prototyping Skill: Beginner
Programming Skill: N/A

  Product Certifications

  Product Attributes

Weight: 30 g
Shipping Dimensions: 70 × 37 × 23 mm

  Warranty Policy

This product has a 30 Day Warranty from the date of delivery. The item must not be modified, abused, incorrectly hooked up, or used for purposes outside the original scope of design.

  Return Policy

This product is returnable Within 14 Days of delivery for a store credit. Item must be unopened, unused, and in re-saleable condition.

More Information:
For more information on our Warranty and Return Policies, please consult our   Terms of Service


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