A semi-truck, also known as a tractor-trailer, is one of the largest types of trucks on the road. It’s made up of two parts: the tractor and the trailer. The tractor is the front part of a semi-truck and it’s what pulls the load. It has an engine, transmission, cab and axles.
The cab is where the driver sits, and it can be either a sleeper cab or a day cab depending on the driver’s needs. The transmission helps to ensure that power from the engine gets to the wheels in order for movement. The axles help to distribute weight evenly across all four wheels and provide stability when turning.
The trailer is what carries all of the freight that is being hauled by the semi-truck. It consists of box-like structures with walls, roof and flooring made out of metal or aluminum.
Inside these box structures are shelves, racks, or other cargo restraints to keep items secure during transport. The trailer also has its own set of axles that help to support its weight while moving down the road.
Overall, semi-trucks have many parts that work together in order to get freight from point A to point B safely and efficiently. These parts include:
- Tractor – engine, transmission, cab, axles
- Trailer – box-like structure with walls/roof/flooring; shelves/racks/cargo restraints; axles for support
Semi-trucks are essential for transporting goods across long distances due to their power and capacity to haul heavy loads safely over long distances. Without them, many businesses would not be able to operate as efficiently or effectively as they do currently.
In conclusion, semi-trucks are composed of two main parts—the tractor and trailer—and multiple smaller components such as engines, transmissions, cabs and axles that make up these two components in order for them to function properly when transporting goods over long distances safely and efficiently. Together these parts make up a total of six components in a semi truck—the engine/transmission/cab part making up three components while the box structure with walls/roof/flooring; shelves/racks/cargo restraints plus axles making up three more components—that work together in order for a semi truck to provide reliable transport services around the world today.