"WardsSci100002"

This package of plastic pulleys contains 25 each of 20, 30 and 40 mm diameter pulleys with 3.2 mm bores and one 10 mm pulley with a push fit to a 2 mm motor shaft.

Jumbo-Sized Pulleys are Designed for Classroom Demonstrations

Teach your students about gear ratios and different gear configurations and how these concepts are used to change the amount of applied force to an object.

Identify All Three Classes of Levers and Their Key Parts

Economical and effective.

Versatile teaching kit contains enough materials for the whole classroom to learn about and experiment with a variety of pulley configurations. Because these activities are hands-on, students get a real feel for the forces at work.

Show the mechanical advantage of the wheel and axle.

This wooden machine is elegantly designed and easy for students to use. Study levers and mechanical advantage both qualitatively and quantitavely.

These free-running plastic pulleys are durable in design.

This wooden machine has a sturdy wooden construction ideal for classroom use.