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Route diagram templates (RDTs) for rail lines and services in the United States. The pages listed in this category are meant to be navigation templates. This page is part of Wikipedia's administration and not part of the encyclopedia.
A wheelset is a pair of railroad vehicle wheels mounted rigidly on an axle allowing both wheels to rotate together. Wheelsets are often mounted in a bogie (" truck " in North America ) – a pivoted frame assembly holding at least two wheelsets – at each end of the vehicle.
The main notations are the Whyte notation (based on counting the wheels), the AAR wheel arrangement notation (based on counting either the axles or the bogies), and the UIC classification of locomotive axle arrangements (based on counting either the axles or the bogies).
An axlebox, also known as a journal box in North America, is the mechanical subassembly on each end of the axles under a railway wagon, coach or locomotive; it contains bearings and thus transfers the wagon, coach or locomotive weight to the wheels and rails; the bearing design is typically oil-bathed plain bearings on older rolling stock, or roller bearings on newer rolling stock.
The small rail wheels fitted to road–rail vehicles allow them to be stowed away when the vehicle is in road-going mode. Wheels used for road–rail vehicles are normally smaller than those found on other types of rolling stock, such as locomotives or carriages, because the wheel has to be stowed clear of the ground when the vehicle is in road-going mode.
For information on using this template, see Template:Routemap. For pictograms used, see Commons:BSicon/Catalogue . Note: Per consensus and convention, most route-map templates are used in a single article in order to separate their complex and fragile syntax from normal article wikitext.
Route diagram templates (RDTs) for rail transport including lines, services, and networks. The pages listed in this category are meant to be navigation templates. This page is part of Wikipedia's administration and not part of the encyclopedia.
The AAR wheel arrangement system is a method of classifying locomotive (or unit) wheel arrangements that was developed by the Association of American Railroads.Essentially a simplification of the European UIC classification, it is widely used in North America to describe diesel and electric locomotives (including third-rail electric locomotives).