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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 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.
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.
A bogie in the UK, or a railroad truck, wheel truck, or simply truck in North America, is a structure underneath a railway vehicle (wagon, coach or locomotive) to which axles (hence, wheels) are attached through bearings. In Indian English, bogie may also refer to an entire railway carriage. [4]
Locomotives of different types (Whyte and UIC wheel notation) In rail transport, a wheel arrangement or wheel configuration is a system of classifying the way in which wheels are distributed under a locomotive. [1]
With the permission of the Royal Railway Administration in Frankfurt a. M., wheelsets with paper discs were manufactured in the main railway workshop in Saarbrücken and in the railway car wheels factory of the van der Zypen brothers in Deutz and then put into use. Such wheelsets with paper pulp discs were in regular service on wagons for a ...
The primary reason that the original RoadRailer concept was not viable was the weight penalty imposed on the trailers because of the attached railroad wheelset. This was resolved in later designs which removed the integrated wheelset by having a dedicated rail bogie assembly that stayed in the rail yard, as seen today. [citation needed] [9]
Rail Wheel Factory, Yelahanka (RWF) (also known as Wheel and Axle Plant) is a manufacturing unit of the Indian Railways located in Yelahanka, Bangalore, Karnataka.It produces wheels, axles, and wheel sets for railway wagons, coaches, and locomotives, serving both Indian Railways and international customers.