Bogie

A bogie (/ˈboʊɡi/ BOH-ghee) (or truck in North American English) is a chassis or framework that carries a wheelset, attached to a vehicle—a modular subassembly of wheels and axles. Bogies take various forms in various modes of transport. A bogie may remain normally attached (as on many railroad cars and semi-trailers) or be quickly detachable (as the dolly in a road train or in railway bogie exchange). It may include a suspension component within it (as most rail and trucking bogies do), or be solid and in turn be suspended (as most bogies of tracked vehicles are); it may be mounted on a swivel, as traditionally on a railway carriage or locomotive, additionally jointed and sprung (as in the landing gear of an airliner), or held in place by other means (centreless bogies).^{[citation needed]}

Although bogie is the preferred spelling and first-listed variant in various dictionaries,^[1]^[2]^[3] bogey and bogy are also used.^[1]^[2]

^ ^a ^b Merriam-Webster, Merriam-Webster's Collegiate Dictionary, Merriam-Webster.
^ ^a ^b Houghton Mifflin Harcourt, American Heritage Dictionary of the English Language (5th ed.), Houghton Mifflin Harcourt, archived from the original on 14 July 2015, retrieved 24 November 2014.
^ Oxford Dictionaries Online, Oxford Dictionaries Online, Oxford University Press, archived from the original on 2 December 2014.

[MWCD-1] Merriam-Webster, Merriam-Webster's Collegiate Dictionary, Merriam-Webster.

[AHD5-2] Houghton Mifflin Harcourt, American Heritage Dictionary of the English Language (5th ed.), Houghton Mifflin Harcourt, archived from the original on 14 July 2015, retrieved 24 November 2014.

[OxfordDictionaries-3] Oxford Dictionaries Online, Oxford Dictionaries Online, Oxford University Press, archived from the original on 2 December 2014.

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