The axle is a shaft that transmits power between the main reducer (differential) and the drive wheels, and is mostly solid. Its inner end is connected to the half-axle gear of the differential, and the outer end is connected to the drive wheel hub. The function of the axle is to transmit the forces in all directions between the frame or load-bearing body and the wheels, as well as the bending moment and torque generated by them.
The axle (also known as the bridge) of the car is connected to the frame (or load-bearing body) through the suspension, and the wheels are installed at both ends. The function of the axle is to bear the load of the car and maintain the normal driving of the car on the road.
Depending on the suspension structure, the axle can be divided into two types: integral and disconnected. The middle part of the integral axle is a rigid solid or hollow beam, which is used in conjunction with the non-independent suspension) while the disconnected axle is a movable joint structure, which is used in conjunction with the independent suspension.
