Mini Pulley Set

This set of four different-sized gears allows you to experiment with motorized cars and equipment of your own design.

This small DC motor runs off any battery or solar cell ranging from 0.5-volts to 6-volts and is a great all-purpose electric motor for science projects.

Constructed with a low-friction plastic wheel (48mm diameter), a steel housing, and hooks on both ends.

Use with our electric motor to make a fan or for other projects.

This low speed DC electric motor rotates at about 1000 rpm at 1.5 volts and 1400 rpm at 3.0 volts.

This 50 mm metal pulley is mounted in a clamp that can be attached to any board or table top up to 3 cm (1.18") thick.

This pulley is constructed with two low-friction plastic wheels (48mm diameter), a steel housing, and hooks on both ends.

Constructed with three low-friction plastic wheels (48mm diameter),a steel housing, and hooks on both ends.

This 38mm plastic pulley is mounted on a rod.

Discover how eight simple machines work as you construct a balance, wheelbarrow, scissors, a block and tackle, and more.