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Gates Corporation sign at company headquarters in 1144 Fifteenth, Denver, Colorado Gates Industrial Corporation plc , based in Denver, Colorado , is a manufacturer of power transmission belts and fluid power products, which are used in diverse industrial and automotive applications. [ 1 ]
An illustration showing how pulleys are used to obtain a mechanical advantage. Using additional pulleys decreases the force required but increases the distance required to raise a load the same amount. In each instance here the mechanical work done is the same, work being the product of force and distance. F Z × s = F L × h 10 cm × 100 N = 10 J
Because flat belts tend to climb towards the higher side of the pulley, pulleys were made with a slightly convex or "crowned" surface (rather than flat) to allow the belt to self-center as it runs. Flat belts also tend to slip on the pulley face when heavy loads are applied, and many proprietary belt dressings were available that could be ...
A pulley is a wheel on an axle or shaft enabling a taut cable or belt passing over the wheel to move and change direction, or transfer power between itself and a shaft. A sheave or pulley wheel is a pulley using an axle supported by a frame or shell (block) to guide a cable or exert force.
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The image gives an immediate (and incorrect) impression that more pulleys do not lift the weight higher. Instead, we must look to the differing numbers to see that this is not the case. My recommendations: keep the lengths the same, adding pulleys each time and the depict weight rising successively higher off the ground.--
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