What is a semi-trailer axle structure

Through the suspension and the frame (or load-bearing body) connected,

It is installed at both ends of the wheel, its function is to transfer the frame (or load-bearing body) and the wheels between the direction of the force and its torque. According to the role of the wheels on the axle, the axle is divided into: drive axle, steering axle, steering drive axle, support axle, of which the steering axle and support axle belong to the follower axle.