Tamiya 69912 Double Gearbox Kit - Educational Clear Gearbox  [69912]

Observe gearing with a clear double-output gearbox

The Tamiya 69912 Double Gearbox is designed for model makers and educators who want to see internal mechanics at work. The transparent ABS resin case reveals gear engagement, while the two-motor arrangement gives independent control of left and right drives for simple R/C vehicles and kit-based constructions.

Four selectable gear steps for experiments

Choose between four gear ratios: 12.7:1, 38.2:1, 114.7:1, and 344.2:1 to evaluate performance under different loads. Compatibility with Type 130 motors makes it a reliable platform for studying gear reduction and torque transfer in classroom or workshop settings.

Mounting, outputs and kit use

Output shafts use a 3mm hex for easy attachment to wheels, pulleys or custom couplings, and the gearbox integrates smoothly with a wide range of Tamiya construction kits to support project-based learning.