After a couple of millennia of fiddling with gears, you’d think there wouldn’t be much new ground to explore in the field of power transmission. And then you see something like an infin… ...

We tell you everything you need to know about pulleys and why your car is overheating at every stoplight.

If a sheave is not balanced, it will have an inherent uneven distribution of weight. This uneven weight distribution magnifies vibration and noise when rotated and as speed of rotation increases.

Variable speed belt drive sheaves are common on combines. At their simplest, a pair of sheaves at one end of a belt moves closer together or farther apart. Another pair of sheaves at the other end ...

Design incompatibility Growing composite pulley availability in universal sizes (A or 4L, for example) means more interchangeability with industry-standard AKtype pulleys. Design modifications ...

We look at the engine accessories such as the oil pump and water pump and the belts and pulleys that drive them and how to set them up effectively - Circle Track Magazine ...

With a simple pulley the force you must exert is equal to the weight of the load. With a compound pulley—two or more pulleys combined together—you can reduce the force required to lift the load.

Learn how pulleys, levers and gears can be used to lift and move heavy loads with these interactive learning resources for KS2 Science students aged 7-11 from BBC Bitesize.