Endless Screw

Purpose

To illustrate mechanical advantage.

Equipment

Endless screw, stand, and masses, as photographed.

Setup Time

5 min.

Images

b-23

Description

The endless screw is a simple machine which illustraates mechanical advantage. Using only a small torque, a relatively heavy weight can be lifted. Concommitantly, a fast rotation of the worm produces a slow angular displacement of the wheel. The mechanical advantage is 136.

References

(PIRA unavailable.)