Tamiya 70110 Crank Axle Gearbox 4-Speed Edition - Classroom and Hobby  [70110]

Tamiya 70110 4-Speed Crank Axle Gearbox Description

The Tamiya 70110 4-Speed Crank Axle Gearbox is designed for those studying mechanical linkages and simple robotics. It gives clear, repeatable examples of how gear choice affects an output shaft.

Key design points and gear options

The compact gearbox integrates easily into small models and trial rigs. Its gear options are 126:1, 441:1, 1543.5:1, and 5402:1, letting users compare low speed high torque settings with higher speed arrangements. Two crank arms are included for alternative motion setups.

Common uses and kit pairing

Well suited to both introductory lessons and hobby experimentation, the Tamiya 70110 pairs with other Tamiya parts to illustrate gearing, motor response, and mechanical advantage in a hands-on way.