Homepage Contact Us Let us know how we are doing, what you think, what you would like to see, how we can improve. Pulleys are a derivation of the wheel and axle above. These devices are used to change the direction that force is being applied. An example can be seen below. This doesn't mean that they are rarely present in the arena.
Pulleys serve a very important function in a robot.
Their main use is gear reduction. The builder can do this one of two ways. One way is to use a gearbox that has different sized gears that mesh together and slow the rpm of the output axle. This is a nice way to slow the rpm and increase torque. The way to use pulleys is to connect different sized pulleys with a drive chain.