Pulley systems ease lifting with ropes over wheels. Single pulleys change force direction; fixed pulleys change direction; movable pulleys reduce effort. Adding pulleys creates mechanical advantage.

The 140-amp Powermaster alternator already had a billet pulley and fan installed so we only had to bolt it to the S-Drive system with one 25mm- and one 80mm-long cap screw. See All 26 Photos 14.

The simple fix is to replace the 211/42-inch alternator pulley with a smaller 2-inch pulley and raise the rotating rpm from 2,000 back to 2,500, which is only 150 rpm less than the original 2,650 ...

By making the pulley 20% smaller and 5 times lighter than the factory pulley, it takes less kinetic energy to spin a full revolution. The 2.0 TSI crankshaft pulley design is very complex design so ...

The 140-amp Powermaster alternator already had a fancy billet pulley and fan installed so we only had to bolt it to the S-Drive system with one 25mm- and one 80mm-long cap screw.

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.

A pulley system with two pulleys is used to lift a 240 N load. The effort required to lift the load is 120 N. Calculate the mechanical advantage of the pulley system.