Page "Bogie" Paragraph 47

Some tanks and other tracked vehicles have bogies as external suspension components ( see armoured fighting vehicle suspension ).

This type of bogie usually has two or more road wheels and some type of sprung suspension to smooth the ride across rough terrain.

Bogie suspensions keep much of their components on the outside of the vehicle, saving internal space.

Although vulnerable to antitank fire, they can often be repaired or replaced in the field.