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The Tamiya double gearbox is a compact unit with two independent
motors and gear trains.
The kit includes two motors and all gears and parts to build any of
the four possible gear ratio configurations (12.7:1, 38:1, 115:1, and
344:1). Although it is not typical, it is possible to assemble each
side with different gear ratios. There are two possible output axle
locations (for any given gear ratio, only one output location is
The output shafts are 3 mm hexagonal axles that are 10 cm (about four
inches) from tip to tip. The axles work with any of the Tamiya wheels,
giving you many options for your robot speed.
The low-voltage motors run on 3-6 volts and draw up to a few amps,
making them perfect candidates for the DRV8833 motor driver carrier.
Motor overheating can be caused by excessive stalling, even at very
low voltages. We recommend that you use stall-detection sensors, or
just watch your robot, to make sure that it doesn't stall for more
than a few seconds at a time. For motor specs, see the Mabuchi motor
FA-130 data sheet.
Note: The universal gearbox kit is a kit; assembly is required. To use
the kit in robotics projects, you need to connect the motors to your
own robot controller.


Key specifications

Bewegungsgeschwindigkeit9100 RPM
Operating voltage6 V

General information

Manufacturer Tamiya
Product type Robotics module
Item number5999703
Manufacturer no.POL-114
Sales rank in Product type Robotics module5 of 107




Compatibility means parts work together.

More information...

Kompatibler Roboter
Tamiya Gearbox

Robotikmodul Eigenschaften

9100 RPM

Power supply


Power supply

All power supply related details.

Operating voltage
6 V

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Returns and warranty

Warranty 24 month Bring-in
30-day right of return

30-day right of return

This product may be returned within 30 days after shipment or collection. A minimum of 10% will be deducted from opened products. Unfortunately, we cannot accept a product if it is damaged, incomplete or missing its original packaging.

Returns and warranty

Please use our simplified returns and warranty process to return a product or register a warranty case. Returns and warranty

Please use our simplified warranty process to view the warranty period as well as any warranty extensions you may have purchased. This will ensure that your return or warranty case is processed quickly and effectively.


Mail delivery

 approx. 7–9 days
1 piece(s) ordered from the supplier.


All locations

 approx. 7–9 days
1 piece(s) ordered from the supplier.

If ordered immediately.
Information subject to change.

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Tamiya Double Gearbox Kit (Tamiya Gearbox) Tamiya Double Gearbox Kit (Tamiya Gearbox)