Tamiya 70188 Mini Motor Gearbox 8-Speed Model Kit Component  [70188]

Tamiya 70188 Mini Motor Gearbox - 8-Speed: Practical Model Component

The Tamiya 70188 gearbox is a compact unit tailored for model makers and instructors who want to demonstrate mechanical principles. Its eight gear positions let you study how gearing affects torque and speed in real setups.

Motor and Case Features

Driven by a type 030 motor, the assembly keeps current draw low and runs with minimal noise. The clear case both shields the gear train and lets you watch gear interactions during operation and testing.

Integration with Models

Providing a 3mm hex shaft and common mounting holes, the gearbox is straightforward to fit into other Tamiya kits and small-scale assemblies, making it handy for model upgrades and classroom experiments.

Changing Gear Ratios

The unit offers eight gear ratios from 7.5:1 up to 87.8:1 so you can pick the best balance of speed and pull for each build. Change the pinion and final gear positions to alter the output characteristics and observe the effects.