What is the bridge of the car?

The front axle is a device that transmits various forces between the frame and the front wheel and the bending moment and torque generated by them.

The function of the axle: to transmit various forces between the frame and the wheels, as well as the resulting bending moment and torque.

The axle is connected with the frame through suspension, and wheels are installed at both ends. The vertical load on the frame is transmitted to the wheels through the axle; Rolling resistance, driving force, braking force, lateral force, bending moment and torque on wheels are transmitted to suspension and frame through axles.

The front axle of modern cars;

In fact, there is no axle between the left and right wheels of most modern cars, but they are connected to the frame or body through their respective suspensions. However, they are still customarily called broken shafts.

The front axle of an automobile is mostly a steering axle, and the rear axle or middle and rear axle is mostly a driving axle. The front axle of off-road vehicles and some cars is both a steering axle and a driving axle, so it is called a steering driving axle.