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  • List of recreational vehicles

    serch.it?q=List-of-recreational-vehicles

    This is a list of types of RVs from the article recreational vehicle. Unimog based 6x6 overlanding capable RV

  • Drawbar (haulage)

    serch.it?q=Drawbar-(haulage)

    A large ballast tractor pulling a load using a drawbar General duty drawbar system on a truck A drawbar is a solid coupling between a hauling vehicle and its hauled load. Drawbars are in common use with rail transport, road trailers, both large and small, industrial and recreational, and with agricultural equipment.

  • Fifth-wheel coupling

    serch.it?q=Fifth-wheel-coupling

    The fifth wheel on a tractor unit A fifth wheel, already coupled The fifth-wheel coupling provides the link between a semi-trailer and the towing truck, tractor unit, leading trailer or dolly. Some camper trailers use a fifth-wheel configuration, requiring the coupling to be installed in the bed of a pickup truck as a towing vehicle, and "fifth wheel" is therefore sometimes used as a synonym for such campers in North America. The coupling consists of a kingpin, a vertical steel pin protruding from the bottom of the front of the semi-trailer, and a horseshoe-shaped coupling device called a fifth wheel on the rear of the towing vehicle. As the connected truck turns, the downward-facing surface of the semi-trailer (with the kingpin at the center) rotates against the upward-facing surface of the fixed fifth wheel, which does not rotate. To reduce friction, grease is applied to the surface of the fifth wheel. The configuration is sometimes called a turn-table in Australia and New Zealand, especially if it is a rotating ball-race-bearing type. The advantage of this type of coupling is towing stability.

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