Tamiya 70188 Mini Motor Gearbox 8-Speed STEM Module  [70188]

Tamiya 70188 Mini Motor Gearbox - 8-Speed: Hands-On STEM Gearbox

The Tamiya 70188 Mini Motor Gearbox is a compact, hands-on component that lets hobbyists and instructors demonstrate basic mechanics and drivetrain behavior. With eight selectable gear ratios, it is well suited to classroom demos and small personalised builds.

Build and Motor Details

This small gearbox is driven by a type 030 motor that keeps power draw low and runs quietly. The clear housing protects the gears while giving a clear view of the internal movement for practical learning and troubleshooting.

Fitment and Typical Uses

Featuring a 3mm hex output and standard mounting holes, the unit links easily to other Tamiya craft parts and model assemblies, including smaller scale military and vehicle kits. Its adaptability makes it useful for education projects and hobby bench work.

Selectable Gear Ratios

The gearbox offers eight gear ratio settings ranging from 7.5:1 to 87.8:1 so you can fine tune speed versus torque. Ratios are changed by repositioning the pinion and final gears, giving clear hands-on experience with mechanical gearing concepts.