Why do the big trucks come with the front wheels and the rear wheels?
The twin is designed to increase the carrying capacity, but the front wheel is the steering wheel, and the steering resistance of the twin will increase.
Reduce the pressure behind the cargo on the ground, as well as the front light, and if the back of the area is not easy to roll over
Therefore, large trucks are usually rear twin, which are calculated by the axial load distribution.
Large trucks are divided according to tonnage, as follows:The limit is 16 tons, the 4x2 (the front single bridge is the rear axle, the single axle is the drive axle twin, and the whole vehicle is the two axle)The limit value is 25 tons, which is 6X4 (front single axle steering single tire, rear double axle is driving twin tire, and the whole vehicle is three axle)The limit value is 31 tons, 8x4 (front double axle is steering axle single, rear double bridge is drive axle twin; the whole vehicle is four axle)The chassis is 4x4 (front double axle for steering single, rear single drive twin, and vehicle three axle)
