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Fifth wheel of the truck

Fifth Wheel's Desciption The fifth wheel of the semi-trailer is a kind of pulling part used by the truck to pull the semi-trailer. It is mainly composed of the seat cover, the saddle base and the locking mechanism. Fifth Wheel's Data Sheet Fifth Wheel's Features High quality material...

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Features

Fifth Wheel's Desciption

The fifth wheel of the semi-trailer is a kind of pulling part used by the truck to pull the semi-trailer. It is mainly composed of the seat cover, the saddle base and the locking mechanism.

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Fifth Wheel's Data Sheet

Type	forging
Application	Traction system
Net weight	122kg
Vertical Load(Kg)	20000
Mounting Height(mm)	150/175/185
MGW(Kg)	65000

Fifth Wheel's Features

High quality material

The material is high-density wear-resistant material, the thickness of the panel is 8-10mm, which can effectively reduce the wear condition during use

Function

The fifth wheel used in the heavy transportation field adopts double pendulum type, in addition to swinging back and forth, it can also swing left and right.

Mature technology

Perfect welding technology and painting technology

How does a fifth wheel work

As mentioned, a fifth wheel is a key connection point between a semi-truck tractor and trailer.

To understand how this works, it's important to understand the key components.

First, you have a kingpin, which is a metal component that protrudes from the trailer.

Then, you have a fifth wheel, where the kingpin engages. A fifth wheel is a flat, non-rotating horseshoe-shaped coupling device that is installed on the semi-truck tractor.

The kingpin on the trailer installs into the fifth wheel on the tractor. The semi trailer's surface, with the kingpin at the center, rotates against the upward-facing fifth wheel. Grease is applied to reduce the friction of these two components rubbing together and works to extend the life of both the kingpin and the fifth wheel.

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