Why do some trailers on lorries not use all their wheels? Like some are raised up, why not use them all?
In: 15
You have multiple axes on trucks so you can support more weight so they are down when required.
The drawback with more wheels is that the rolling friction increase so lifting them up save on fuel.
If you look at their behavior when you take a turn it will be around the center point between a par so if they do not turn there will be some scrubbing against the ground. So the tire wear will be higher with an extra axis on the ground.
The result is that the cost for the operator is lower if they lift up an axis when it is not needed.
Latest Answers