The wheel is a tool used to put wheels on things. You can edit the model, torque, and friction. The more torque the wheel has, the faster it can spin. The more friction the wheel has, the more the speed it can have.
If the torque is too high, and there is no friction, it might spin too fast and get very jumpy. Turning up axis friction (This does not make the wheel have more grip, it only controls the joint) or turning down torque can make it more controllable.
There are some models that appear like a propeller than a wheel those can be used for putting the propeller of a helicopter or an airplane