Tamiya 69912 Clear Double Gearbox Kit with Independent 4-Speed Control for Educational Builds  [69912]

Tamiya 69912 Double Gearbox Overview for STEM Builders

The Tamiya 69912 Double Gearbox is designed to teach mechanical principles through assembly and observation. The clear ABS resin case exposes the gears so learners can see power transfer in real time, while the twin motor arrangement gives separate control of left and right outputs, ideal for simple wheeled robots or compact construction models.

Selectable Ratios and Motor Details

The unit offers four selectable gear ratios: 12.7:1, 38.2:1, 114.7:1 and 344.2:1, letting builders match speed and torque to their project needs. Type 130 motors are included with the gearbox to provide practical demonstrations of gear reduction and mechanical advantage.

Compatibility and Connection Features

This gearbox works with a range of Tamiya construction and robotics kits, making integration straightforward for custom assemblies. It uses 3mm hex output shafts so you can link it easily to drive components and accessory parts in larger builds.