The axle connects to the frame through suspension and installs wheels, mainly responsible for load transmission and maintaining driving functions.

The axle connects to the frame through suspension and installs wheels, mainly responsible for load transmission and maintaining driving functions. According to the structure, it can be divided into two categories: integrated and non independent suspension used in combination, and disconnected and independent suspension used in combination. According to the difference in driving modes, it can be divided into four types: steering axle, drive axle, steering drive axle, and support axle. For front wheel drive vehicles, the front axle is a steering axle and the rear axle is a drive axle. For front wheel drive vehicles, the front axle is a steering drive axle and the rear axle is a support axle