European type dolly trailer

A dolly is an unpowered vehicle designed for connection to a tractor unit, truck or prime mover vehicle with strong traction power.

United States

Classification by axle configuration

Single axle dolly owned by UPS

There are several types of dolly bogie:

Classification by coupling configuration

There are two basic types:


Converter dollies are used in road trains in Australia, most commonly with two or three axles and a hinged drawbar. They are also frequently referred to as road train dollies.

The C-dolly design is not allowed in Australia, as it prevents articulation between the dolly wheels and the axles of the truck or trailer in front of the dolly. Australian rules require articulation between axle groups.

Low-loader dollies – which present a kingpin rather than a drawbar coupling – are used with many low loaders to allow heavy cargo to be carried without overloading the wheels of the prime mover or the low loader.

Airport dolly

An airport dolly holding two aircraft cargo Unit Load Devices

Main article: Airport dolly

Dollies are used for the transportation of loose baggages, oversized bags, mail bags, loose cargo carton boxes, etc. between an aircraft and the terminal or sorting facility. In the US, these dollies are called baggage carts, but in Europe baggage cart means baggage trolleys used by individual passengers.

See also


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