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2. Fifth-wheel coupling - Wikipedia

   en.wikipedia.org/wiki/Fifth-wheel_coupling

   The fifth-wheel coupling provides the link between a semi-trailer and the towing truck, tractor unit, leading trailer or dolly. The coupling consists of a kingpin , a 2-or- 3 + 1 ⁄ 2 -inch-diameter (50.8 or 88.9 mm) vertical steel pin protruding from the bottom of the front of the semi-trailer, and a horseshoe-shaped coupling device called a ...

3. Towing - Wikipedia

   en.wikipedia.org/wiki/Towing

   In the United Kingdom, RV trailers are known as caravans. Trailers designed to be hauled in an 18-wheel tractor-trailer configuration, which come in many configurations: Roll trailer, Flat bed or open trailers, which are platforms with no sides or stakes. This type of trailer works well for hauling large or unconventional shaped objects.

4. Wheel chock - Wikipedia

   en.wikipedia.org/wiki/Wheel_chock

   Wheel chocks (or chocks) are wedges of sturdy material placed closely against a vehicle's wheels to prevent accidental movement. Chocks are placed for safety in addition to setting the brakes. The bottom surface is sometimes coated in rubber to enhance grip with the ground. For ease of removal, a rope may be tied to the chock or a set of two ...

5. M19 tank transporter - Wikipedia

   en.wikipedia.org/wiki/M19_Tank_Transporter

   Cable rollers and sheaves let the winch from the M20 truck pull tanks onto the trailer, chocks and chains were used to secure the load. [15] [16] The front axle suspension system was trailing beam assemblies on coil springs, with a dual tire wheel on each side of the beam. With an assembly on each side there were four wheels on the axle line. [17]

6. Semi-trailer truck - Wikipedia

   en.wikipedia.org/wiki/Semi-trailer_truck

   Conventional style cab tractor A cab-over semi-tractor Tractor with an end-dump trailer A FAW semi-trailer truck in China A semi-trailer truck (also known by a wide variety of other terms – see below) is the combination of a tractor unit and one or more semi-trailers to carry freight. A semi-trailer attaches to the tractor with a type of hitch called a fifth wheel. Other terms There are a ...

7. Wheel stops - Wikipedia

   en.wikipedia.org/wiki/Wheel_stops

   Wheel stops may refer to: Wheel chocks, for aircraft or road vehicles; Railway wheel stops This page was last edited on 22 October 2020, at 17:25 (UTC). Text is ...