Gear Motor All Metal DC Motor Gearbox DC3-6v 1:90 110rpm for Robot car ROHS

Brands DAGU
Product Code: DG02D 1:90-2M
Availability: 99

These gearbox motors (also known as 'TT' motors) are an easy, low-cost way to get your projects moving.

This is a TT DC All-Metal Gearbox Motor with a gear-ratio of 1:90 aboutdouble of the 'standard' 1:48 ratio.

That gives them higher torque but slower rotational speed.

Since they're slower they're good for robots where strength is more important than speed.

They look a lot like our yellow all-plastic-gearbox motors but these have all of the motor gears machined from steel, so they won't strip as easily, and they're twice as slow (and twice as powerful) given their lower gearbox ratio. The metal gears also mean they're louder when running.

You can power these motors with 3VDC up to 6VDC, they'll of course go a little faster at the higher voltages. We grabbed one motor and found these stats when running it from a bench-top supply

  • At 3VDC we measured 80mA @ 60 RPM no-load, and 0.5 Amps when stalled
  • At 4.5VDC we measured 90mA @ 90 RPM no-load, and 0.8 Amps when stalled
  • At 6VDC we measured 100mA @ 120 RPM no-load, and 1.0 Amps when stalled

Note that these are very basic motors, and have no built-in encoders, speed control or positional feedback. Voltage goes in, rotation goes out! There will be variation from motor to motor, so a separate feedback system is required if you need precision movement.



Conditions of Standard Operation

Suggested Voltage

3.0V DC Constant between motor terminals

Direction of rotation


Gear box position

All directions

Storage Humidity Range with the exception of gear box


Operation temperature range with the exception of gearbox


Storage temperature Range with the exception of gearbox


Gear box noise: 70dB (Max)

Background noise: 35dB (Max)

Electrical Characteristics (DC 6V)



No load Current

 140mA  (140mA Max)

Current under rated load

 140mA  (140mA Max)

Speed under rated load

 105±10% Rpm
Starting Voltage 1.2V  (1.6V Max)
Current by qualified test 140mA Max  (DC3V)

Packaging & Delivery

Selling Units:
Single item
Single package size: 
6.4X2X2.2 cm
Single gross weight:
0.05 kg
Package Type:
Well Packed
Lead Time :
Quantity(Piece)1 - 1011 - 250251 - 1000>1000
Est. Time(days)5715To be negotiated

Write a review

Note: HTML is not translated!
    Bad           Good