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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 Santa Fe was the first company to have roller bearing trucks made by Timken under their passenger cars, much to the delight of their passengers, and the bottom line for the company. Timken commissioned the construction of a demonstration boxcar in 1943 that was first displayed at the 1948 Chicago Rail Fair.
A rail vehicle wheelset, comprising two wheels mounted rigidly on an axle 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.
With this configuration, the cars have 6 wheels per assembly running on the main rails, and an additional 4 wheels per side running on the extra set of rails. On flying roller coasters , such as those produced by Bolliger & Mabillard and Vekoma , the running wheels and up-stop wheels are typically the same size due to the trains upright ...
A hot box is the term used when an axle bearing overheats on a piece of railway rolling stock. [1] The term is derived from the journal-bearing trucks used before the mid-20th century. The axle bearings were housed in a box that used oil-soaked rags or cotton (collectively called "packing") to reduce the friction of the axle against the truck ...
Rába engineers, manufactures and customizes automotive components, specialty vehicles and axles for commercial vehicles, agri-machinery and earth-movers. [2] The Rába has been building axles as well as complete vehicles since 1902. The company has three strategic business units. [2]