Tamiya Twin-Motor Gearbox Kit

The Tamiya 70097 twin-motor gearbox is a small (3-inch long) plastic gearbox. It contains two small DC motors that drive separate 3mm hexagonal output shafts.

There are two ways to put the kit together: with a high-speed 58:1 gear ratio or with a slower 203:1 gear ratio.

There are two ways to put the kit together: with a high-speed 58:1 gear ratio or with a slower 203:1 gear ratio.

Either way, the motors provide plenty of power to drive any small robot.

For a gearbox with a similar form factor and more gear ratio options, see the Tamiya #70168 double gearbox Product Code 114.

Typical operating voltage:  3 V 
Gear ratio options:  58:1 and 204:1 
Free-run motor shaft speed @ 3V:  12300 rpm1 
Free-run current @ 3V:  150 mA2 
Stall current @ 3V:  2100 mA 
Motor shaft stall torque @ 3V:  0.5 oz·in3 
Colour:  grey 

The low-voltage motors run on 3-6 volts and draw up to a few amps, making them perfect candidates for the the Pololu Orangutan LV-168 robot controller Product Code 775, which incorporates these low-voltage motor drivers.

• Typical operating voltage:  3 V 
• Gear ratio options:  58:1 and 204:1 
• Free-run motor shaft speed @ 3V:  12300 rpm1 
• Free-run current @ 3V:  150 mA2 
• Stall current @ 3V:  2100 mA 
• Motor shaft stall torque @ 3V:  0.5 oz·in3 
• Colour:  grey