What are some great examples of wheel and axle?

Examples of Wheel and Axle: The large disc is the wheel, and the small cylinder or rod is the axle. There may be two wheels attached to the axle like in the image to the left, or it could be a single wheel and axle. The wheel is one of the greatest inventions in history, but it does not work without the axle. read more

Some examples of wheels and axles include door knobs, rolling pins, record players and a ceiling fan. A wheel and axle is a simple machine, and other examples include a pencil sharpener and the wheels on roller skates. read more

For example, a screwdriver is an example of a wheel and axle. The handle is the wheel where the force is applied. It turns or spins and increases the force of the shaft or axle, which helps turn the screw. read more