A pulley is a simple machine using a wheel and a cord that's designed for lifting. A pulley is a simple machine using a wheel and a cord that's designed for lifting. Pulleys help make work easier by ...

Pulley systems are simple machines that make lifting heavy objects easier. They consist of a rope or cable that passes over one or more wheels (pulleys). A single pulley changes the direction of force ...

This video demonstrates the installation of a pulley saver for tree climbers, highlighting proper techniques to protect ropes and extend their lifespan. It provides step-by-step guidance for safe and ...