STEM Construction Replacement Gear Set - Tamiya 70269  [70269]

Tamiya 70269 - Universal Gear Set
Price:
CAD$18.41
Brand:
Tamiya
Model:
70269
Condition:
Brand New
Write a review

Replacement gears for STEM construction projects

The Tamiya 70269 Universal Gear Set is supplied as a replacement gear pack intended for the STEM Series construction range. The following notes assume familiarity with Tamiya construction components and basic gear-driven drivetrains used in educational Mini 4WD projects.

Typical uses include swapping out worn plastic gears in classroom assemblies, keeping display models serviceable, and supporting iterative prototype work where simple, interchangeable gearing is useful. This set is presented as common spare parts rather than a high-performance racing upgrade.

Installation advice: confirm proper tooth engagement and minimal axial play before final assembly, align shafts to prevent binding, and inspect each gear for cracked teeth or distortion. If lubrication is needed, use a light hobby-grade grease on contact surfaces only and avoid excess that could attract dust.

Compatibility note: users should verify dimensional fit with their specific construction frames. The pack is intended for the STEM Series construction platform and related Tamiya educational kits; it is not specified for high-speed racing use on performance Mini 4WD chassis.

Which STEM kits typically accept these gears?

The pack is aimed at STEM Series construction kits and similar educational assemblies. Always check shaft diameters and gear mesh against your kit before fitting to ensure correct operation.

Are these suitable for Mini 4WD race tuning?

These are standard plastic replacement gears intended for school and display use. They are not intended as performance upgrades for high-speed racing chassis.

What checks should I do before installation?

Inspect tooth profiles, confirm shaft fit and end float, and remove any mould flash. Fit gears dry first to check for smooth rotation and correct mesh.

How should I lubricate these gears?

A light dab of hobby grease on contact spots helps reduce wear. Avoid heavy oils that attract grit and always wipe away excess after a test run.

Best method to store spare gears?

Keep spares in a dry, shaded container and separate by size or kit in labelled bags to prevent mix-ups with similar parts.

Can I swap these across different STEM sets?

Compatibility depends on shaft diameter and gear spacing. The gears are general-purpose for Tamiya STEM construction parts, so measure and compare before committing to an install.

Copyright © 2008-2026 rcjaz.ca All rights reserved