What's the difference between a semi-trailer tractor and a tractor trailer?
The traction car is mainly used for traction trailers. It is divided into tow tractors and semi-trailer tractors. The quality of the trailer is part of the tractor, called semi-trailer, and the quality of all the trailers acting on the tractor is called a full - Trailer tractor.
Note: the front of the drive capacity is called the tractor, and there is no traction drive behind the trailer, and the trailer is towed by the tractor.
Semi trailer tractor is a commercial vehicle equipped with a special device for towing semi-trailer. The front half of the trailer is attached to the traction saddle on the rear section of the tractor, and the rear axle of the tractor bears part of the weight of the trailer;The tractor is: the front end of the trailer is attached to the rear end of the tractor, the tractor only provides the forward pulling force, and the trailer is towed, but it does not bear the downward weight of the trailer.
The difference between semi-trailer tractor and all tractor is that the connection between tractor and trailer is different.
