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Towing capacity is a measure describing the upper limit to the weight of a trailer a vehicle can tow and may be expressed in pounds or kilograms. Some countries require that signs indicating the maximum trailer weight (and in some cases, length) be posted on trucks and buses close to the coupling device. Towing capacity may be lower as declared ...
A trailer coupler is used to secure the trailer to the towing vehicle. The trailer coupler attaches to the trailer ball. This forms a ball and socket connection to allow for relative movement between the towing vehicle and trailer while towing over uneven road surfaces. The trailer ball is mounted to the rear bumper or to a draw bar, which may ...
A tow hitch (or tow bar or trailer hitch in North America [1]) is a device attached to the chassis of a vehicle for towing, or a towbar to an aircraft nose gear. It can take the form of a tow ball to allow swiveling and articulation of a trailer , or a tow pin, or a tow hook with a trailer loop, often used for large or agricultural vehicles ...
In the 1920s he start making a line of automobile products, including trailers, truck body, coachbuilding and taxi cab conversions. [4] Before 1932, trailers used only jaw or hook couplings with an eyelet for trailer towing. In 1932, Franz Knöbel developed the trailer hitch with a ball head and socket joint. Franz Knöbel patented the ball ...
On travel trailers and fifth-wheel trailers, usually over a certain weight, a supplemental system of stopping the rig is needed. Within the towing vehicle's cab is a trailer brake device that uses the towing vehicle's 12-volt DC current to apply a current to electrically-operated wheel brakes on the trailer's wheels. Engine battery(s)
SAE J2807 is an SAE standard for determining the towing capacity of passenger cars, multipurpose passenger vehicles, and trucks. [1] It was written to allow consumers to more accurately compare vehicles from different manufacturers.
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 fifth wheel on the rear of the towing vehicle. As the connected truck turns, the downward-facing surface of the semi-trailer (with ...
Trailer (vehicle), an unpowered vehicle pulled by a powered vehicle Baggage trailer, a large flatbed baggage trolley; Bicycle trailer, a wheeled frame for hitching to a bicycle to tow cargo or passengers; Boat trailer to carry small boats; Horse trailer and other trailers designed to haul livestock; Semi-trailer, a trailer without a front axle