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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 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).
Improperly trued wheels increase rolling resistance, reduce energy efficiency and may create unsafe operation. A railroad wheel typically consists of two main parts: the wheel itself, and the tire around the outside. A railway tire is itself steel, and is typically heated and pressed onto the wheel, where it remains firmly as it shrinks and cools.
Unit Train A unit train, also called a block train or a trainload service, is a train in which all cars (wagons) carry the same commodity and are shipped from the same origin to the same destination, without being split up or stored en route. [244] [circular reference] UP (US) The common name and reporting mark for the Union Pacific Railroad [245]
The bogies of the train include railway wheels with longer flanges than normal. These conventional wheels are normally just above the rails, but come into use in the case of a flat tyre, or at switches (points) and crossings. In Paris these rails were also used to enable mixed traffic, with rubber-tyred and steel-wheeled trains using the same ...
The tire, which was introduced at this year's Consumer Electronics Show, is comprised of two lobes of braided steel and is designed to be able to easily trek over hills of fine-grained, abrasive ...
The point where two tracks join and the vehicle can take one of two directions is called a railway switch. This works on the same principle, except that the inner rail is almost continuous and the outer rail has a gap for the flange to pass through. With a train this problem is solved by using a wide tire. Train rails usually cross at a shallow ...
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