Truck

Truck
Tractor — propelled trackless land transport vehicle designed to tow trailers and semi-trailers, self-propelled machinery (construction, agricultural), cargo sleigh and sweeps, as well as for towing the art and missile systems, faulty self-propelled vehicles (cars, tanks, etc.) and the aircraft aerodrome.

Trucks are classified by several criteria:
the type of machine;
the propulsive class;
by number of axles.
Truck tractor
this is a special type of truck used in the transportation of trailers and semi-trailers,which are connected to the truck with a special hitch mechanism of the fifth wheel. The truck tractor is a truck without a body. Instead of the body, the tractor is a special pull-type mechanism (saddle), with which the tractor can attach different trailers and semitrailers.
Tractor is widely used around the world, as this type of technology has great versatility and is capable of carrying a large variety of cargo over long distances. This is a great advantage of tractors before any other form of freight transport. This tractor is a reliable machine that has high maneuverability and can carry large amounts of cargo.
In the market of sales of tractors, you can find various brands of trucks such as the well-known Freightliner, Volvo, Peterbilt, Kenworth, Scania, Mann or low-cost tractors from China. A lot of vehicle companies offer their clients to buy tractors of various modifications and configuration. It should be noted that every year, this kind of technology continues to improve. The most popular among buyers are American and European tractors.
Their main advantages and differences are seen in the following characteristics:
a large part of European tractors are compact steel cabover cab, and most of the tractors made in the USA spacious bonneted cab, and material for their manufacture are plastic and Khimvolokno;
tractors European manufacturers are equipped with disc brakes, and the U.S. — drum;
European tractors have light bridges, and for American tractors are rare;
European trailers are equipped underrun bars, which prevent cars and other small vehicles under the semitrailer. American tractors of this type of bars is not equipped;
the voltages on Board are the «Americans» 12 volt «Europeans» — 24;
One important factor is the repair and maintenance of the truck tractor. It should be noted that American tractor has more available and cheap components and is characterized by high comfort and safety. European brand trucks differ maneuverability, progressiveness, increased comfort and great attention to the safety of the driver and passengers.