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CMVs are restricted by gross weight (total weight of vehicle and cargo), and by axle weight (i.e., the weight carried by each tire). The federal weight limits for CMVs are 80,000 pounds (36,000 kg) for gross weight (unless the bridge formula dictates a lower limit), 34,000 pounds (15,000 kg) for a tandem axle, and 20,000 pounds (9,100 kg) for a ...
Respectable diagram of the major points on a standard tractor trailer truck (or articulated lorry, if you happen to be from the other end of the pond). Admittedly not a particularly exciting image, however it does label and show and the standard points of a tractor trailer truck quite well, and that I judge is worth a shot here.
Original file (975 × 600 pixels, file size: 4 KB, MIME type: application/pdf) This is a file from the Wikimedia Commons . Information from its description page there is shown below.
Typically, it is written in the form x/y, where x is the percentage of weight in the front, and y is the percentage in the back. In a vehicle which relies on gravity in some way, weight distribution directly affects a variety of vehicle characteristics, including handling , acceleration , traction , and component life.
The combination of a semi-trailer and a tractor truck is called a semi-trailer truck (also known simply as a "semi-trailer", "tractor trailer", or "semi" in the United States). [1] A large proportion of a semi-trailer's weight is supported by a tractor unit, or a detachable front-axle assembly known as a dolly, or the tail of another trailer ...
Projected payloads for the M1300 and semi-trailer were stated to be a minimum of 82 tonnes and up to 90 tonnes (74,389 to 81,647 kg). To achieve this, the tractor required some weight redistribution from the front axle and a new multi-axle semi-trailer.
The tanker is designed to be towed by a 5-ton, 6x6 truck tractor or similar vehicle equipped with a fifth wheel. The M970 can be loaded through the bottom or through the top fill openings. A ladder is provided at the front of the semitrailer for access to the top manhole, and a 4-cylinder diesel engine and pump assembly provides self load ...
Peterbilt 386 sleeper-cab–style commercial 6×4 tractor unit. A tractor unit, also known as a truck unit, lorry unit, power unit, prime mover, ten-wheeler, semi-tractor, semi-truck, semi-lorry, tractor cab, truck cab, lorry cab, big rig tractor, big rig truck or big rig lorry or simply a tractor, truck, lorry, semi, big rig or rig, is a characteristically heavy-duty towing engine that ...