A bogie (/ ˈ b oʊ ɡ i / BOH-ghee) is a wheeled wagon or trolley.In mechanics terms, a bogie is a chassis or framework carrying wheels, attached to a vehicle. It can be fixed in place, as on a cargo truck, mounted on a swivel, as on a railway carriage or locomotive, or sprung as in the suspension of a caterpillar tracked vehicle.