What is a fifth wheel?

The fifth wheel in the hitch is an important accessory of the tractor and can be installed on the rear end of the body of a truck, trailer or similar vehicle. The fifth wheel distributes the load evenly on the truck or trailer by firmly connecting the cargo to its U-shaped interface. The fifth wheel cleverly relies on the hinge design, giving the vehicle excellent flexibility during driving.

The trailer fixing device, the king pin, is responsible for firmly locking the 5th wheel to the trailer, while allowing the front axle of the truck or tractor to rotate freely. This unique hitch mechanism greatly improves safety because it ensures that the weight of the cargo can be more evenly distributed throughout the vehicle's frame structure.

The first application of the 5th wheel is undoubtedly a revolution in the field of trailer and truck transportation. It not only greatly promotes transportation efficiency, but also ensures that large cargo can be transported safely and quickly, opening a new era of trailer truck transportation.