Example:If a pulley system allows you to lift a 300 N load with an effort of only 100 N, the mechanical advantage is 3. Mechanical advantage =300/100 This means the pulley system makes it three ...

The more pulley wheels you add to the mechanism, the less force is required to move the load. Pulleys are used to help lift many things. Lifts, window blinds and cranes often use pulley systems.

The solution? A pulley system to make everything easier. The concept is simple. [Barnso]’s system uses three pulleys. The headphone cable goes to the PC, and then runs over the first pulley.

which packages a two-ratio epicyclic gearbox into the belt drive pulley hub. To start the engine, the high ratio (3.1:1 in the development system) is engaged to substantially reduce the torque ...