Tamiya 70242 Compact Universal Joint Set STEM Parts  [70242]

Tamiya 70242 - Joint Set Summary for STEM Builds

The Tamiya 70242 Universal Joint Set is a practical addition for hobbyists and educators wanting to broaden their STEM project toolset. It provides reliable power transfer options and helps illustrate mechanical motion through simple assembly tasks.

Performance and Compatibility

The universal joint set supports power transmission at angles up to 45 degrees, letting you arrange drives in constrained spaces. The kit includes three joint types that work with common shaft sizes: 3mm hex shafts used in many gearboxes, 2mm hex shafts often found in compact underwater gearboxes, and 4mm standard shafts used across the Tamiya Technicraft Series.

Use Cases and Kit Contents

These joints are moulded from low-friction plastic to keep motion smooth in moving models and teaching rigs. The set also includes special brackets for flexible mounting, plus two each of 2x33mm, 3x27mm, and 3x50mm hex shafts and a selection of 3mm screws and nuts for secure fittings.