What semi-trailer uses a BPW 13 ton axle (axle)? What are the common ones

Semi-trailers with a load of less than 40 tons can use BPW 13 ton bridge. Full trailer refers to a car with only a truck and no power part. In fact, it is a car with four wheels, just like a train carriage.

Semi-trailer is a carriage (usually flat) with wheels at one end (usually two axles and eight wheels), and only the traction seat without wheels at the other end, so it can only be placed on the ground without hanging the tractor head.

Extended data:

According to different driving modes, axles are also divided into four types: steering axle, driving axle, steering driving axle and supporting axle. Among them, the steering bridge and the supporting bridge belong to the driven bridge. Most cars use front and rear drive (FR), so the front axle is used as the steering axle and the rear axle is used as the driving axle. On the other hand, the front axle of a front-drive (FF) vehicle is the steering drive axle, and the rear axle is the support axle.

The structure of the steering axle is basically the same, consisting of two steering knuckles and a cross beam. If the beam is compared to the car body, the steering knuckle is his head swinging from side to side, the neck is often said to be the kingpin, and the wheels are mounted on the steering knuckle, as if he were wearing a straw hat.

However, when driving, the straw hat turned, but the head did not turn. The middle is separated by bearings, and the head just shakes left and right. Neck-the kingpin is the axis of the wheel rotation, and the axis of this axis is not vertical to the ground, and the wheel itself is not vertical. We will discuss it in detail in the section on wheel alignment.