The Tamiya 70121 Pulley Unit Set is aimed at hobbyists and learners who want to test real-world pulley arrangements. With clear components and a motor, it is designed for practical experimentation on motion, gearing and mechanical advantage.
You get five different pulleys, a universal arm, pulley mounts plus a motor and motor mount box so you can try multiple configurations. The parts let you set up direct drive, compound and stepped pulley systems to explore speed and torque changes.
This kit suits classroom projects, club workshops and independent tinkerers. The Tamiya 70121 Pulley Unit Set works alongside other Tamiya construction and robotics modules, allowing you to expand into conveyors, simple machines or automated demos.
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