i would suppose its because the weight in which they carry must be distributed on 18 wheels instead of 4, 4 wheels would not work
Each wheel has a specific load rating as does the axle. The more tires you have hitting the road at a given time helps to reduce the stress on the truck/trailer and the road. The more wheels a vehical has, the higher (in most cases) the gvwr of the vehical is.
A vehicle with 18 wheels is commonly known as a "semi-truck" or "tractor-trailer."
18, The truck has 10, the trailer has 8, = 18.
18 = Wheels on a Semi Truck
They differ , but the answer your lookong for is 18.
An 18 wheeler is a semi-truck and trailer. A truck, and trailer, has 18 wheels, including 10 on the semi, and 8 more on the trailer. 18 Wheelers are responsible for the majority of products the user buys everyday.
yes they do there bigger then semi truck wheels also the mall truck has the biggest wheels
A semi-trailer truck usually has eighteen wheels. For this reason, many people call semitrailers "18-wheelers". They're also known as "mack trucks", "tractor-trailers", and "big rigs".
Hard Truck 18 Wheels of Steel - 2002 VG is rated/received certificates of: USA:E
The amount of tons a Mac truck can carry will depend on the size of the truck. A six wheel Mac truck with a dump can carry up to 30 tons or more. A Mac truck with 18 wheels and a semi trailer can carry up to 23 tons in the trailer.
semi truck, or semi tractor trailer, and 18 wheeler.
Because the truck alone is only half the unit, not complete with the trailer. Also, because it is based on the type of trailer. A "full" trailer has wheels at the front as well as at the rear. A "simi-trailer" only has wheels at the rear, and its front end is supported by the towing vehicle.
18 wheels on a three-ton truck?