Tamiya 72005 HE Series 6-Speed Gearbox Kit  [72005]

Tamiya 72005 6-Speed Gear Box for STEM Projects

The Tamiya 72005 6-Speed Gear Box is a useful component for educators and hobbyists working on STEM and introductory robotics builds. The unit provides multiple selectable gear ratios to suit a range of Tamiya models and experimental mechanical assemblies. Its compact footprint makes it easy to fit into small projects where precise gear selection matters.

Six Selectable Ratios and Mechanical Setup

This gearbox includes six gear ratios: 11.6:1, 29.8:1, 76.5:1, 196.7:1, 505.9:1, and 1300.9:1, giving a wide span of speed and torque options. The pack includes crank arms and an RE-260 motor that help demonstrate basic gear trade offs between torque and rpm in hands-on lessons and builds.

Integration with Tamiya Kits

The unit is compatible with a variety of Tamiya construction and robot kits, making it straightforward to add variable gearing to models. It is well suited to classroom demonstrations, hobby prototypes, and small-scale mechanical experiments that teach gear ratios and motion control.