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A train wheel or rail wheel is a type of wheel specially designed for use on railway tracks. The wheel acts as a rolling component, typically press fitted onto an axle and mounted directly on a railway carriage or locomotive , or indirectly on a bogie (in the UK), also called a truck (in North America).
Worn tires or tires with flats are reprofiled on a wheel lathe if there is sufficient thickness of material remaining. A damaged railway tire was the cause of the Eschede train disaster , when a tire failed on a high-speed Intercity Express train, causing it to derail and killing 101 passengers.
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.
The unit was commissioned by C. K. Jaffer Sharief, the then Railway Minister, in 1984. This factory uses cast steel technology in the manufacturing of wheels which utilizes scrap steel collected from Railways' own workshops as raw material. The products (Wheels, Axles and wheel sets) are engineered with little scope for human errors. It has a ...
The Sapporo system and Lille Metro use a single central guide rail only. [4] On some systems, such those in Paris, Montreal, and Mexico City, there is a conventional 1,435 mm (4 ft 8 + 1 ⁄ 2 in) standard gauge railway track between the roll ways. The bogies of the train include railway wheels with longer flanges than normal.
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] Several notations exist to describe the wheel assemblies of a locomotive by type, position, and connections, with the adopted notations varying by country.
A preserved Mansell wheel set at the Buckinghamshire Railway Centre. The reason for using wood was to reduce the noise. Having a wooden centre eliminated the ringing noise that emanated from early railway wheels. Made from teak, this type of wheel endured for a long time. Besides the reduction in noise, there was an increased safety factor.
Plate rail was an early type of rail and had an 'L' cross-section in which the flange kept an unflanged wheel on the track. The flanged rail has seen a minor revival in the 1950s, as guide bars, with the Paris Métro (Rubber-tyred metro or French Métro sur pneus) and more recently as the Guided bus.