Do door handles and wrenches belong to axles?

Axle includes: steering wheel, faucet, wrench, door handle, etc.

Wheels, usually wheels, are round objects mounted on axles that can rotate to move cars, or objects mounted on machines that can rotate to move machines.

The shaft is a cylindrical object that passes through the middle of bearings, wheels or gears, but several of them are square; A shaft is a mechanical part that supports a rotating part and rotates with it to transmit motion, torque or bending moment. Generally, it is a metal round bar, and each section can have different diameters. The rotating parts in the machine are mounted on the shaft.

Features of the axle: ① When the power acts on the wheel and the resistance acts on the axle, it can save labor and change the direction of the force, but it takes a long distance. ② When power is applied to the axle, resistance is applied to the wheel, which is laborious and can change the direction of the force, but it saves the distance. ③ When the wheel shaft rotates, the wheel and the shaft have the same "rotational speed"-angular speed.