semi-trailer
Sign in to savethumb|A tractor unit pulling a semi-trailer thumb|right|A truck pulling a semitrailer using a trailer dolly (trailer)|dolly
Article
9 sectionsContents
- Properties
- Couplings
- Fifth-wheel coupling
- Types
- Tank trailer
- Gallery
- See also
- References
- External links
thumb|A tractor unit pulling a semi-trailer thumb|right|A truck pulling a semitrailer using a trailer dolly (trailer)|dolly
A semi-trailer is a trailer without a front axle. 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).