About Wheel And Axles

The wheel and axle is a simple machine.The form consists of a wheel that turns an axle and in turn a rope converts the rotational motion to linear motion for the purpose of lifting.The traditional form as recognised in 19th century textbooks is as shown in the image. This also shows the most widely recognised application, i.e., lifting water from a well.By considering the machine as a torque multiplier, i.e., the output is a torque, items such as gears and screwdrivers can fall within this category.