This apparatus consists of a steel shaft, 6mm in length.
The steel shaft is mounted on a stand post with nylon/metal bearings.
One end of the steel shaft carries an aluminium āVā pulley which is 56mm in diameter, and the other end is fitted with a cord anchoring collar.
This apparatus is used for demonstrating the conversion from electrical energy via mechanical, to potential energy by winding up a weight on a cord.
It is supplied complete with a driving belt.