Tamiya 70186 Underwater Gearbox STEM Kit  [70186]

Underwater Gearbox Overview

The Tamiya 70186 Underwater Gearbox Set is a flexible addition to any STEM toolkit. It encourages practical learning in mechanical design and motion by guiding users through hands-on assembly. The set's adaptable parts make it suitable for building swimmer models and simple amphibious craft.

Features and Learning Benefits

This gearbox includes a Submarine Motor Mini (High Speed Type) and uses a gear ratio of 28.9:1. An attachment plate is supplied to fasten the unit to foam boards (sold separately) using screws, simplifying integration into model hulls and classroom projects. The unit runs on one R03/AAA/UM4 battery (not included) and its straightforward layout is ideal for experimentation with gearing and propulsion.

Uses and Project Ideas

Whether expanding a hobby collection or equipping a lesson plan, the Tamiya 70186 Underwater Gearbox Set fits a range of builds and creative prototypes. Compatibility with other Tamiya parts lets builders link this gearbox into larger machines and hybrid models.