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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).
Rail vehicle wheels are usually mounted on a solid axle, so they turn at the same speed.When a vehicle turns the outer wheel has to travel further than the inner wheel. On a road vehicle, this is usually achieved by allowing the wheels to move independently, and fixing the front wheels in an arrangement known as Ackermann steering geometry.
3-wheeled handcar or velocipede on a railroad track Preserved railroad velocipede on exhibit at the Toronto Railway Historical Association. A handcar (also known as a pump trolley, pump car, rail push trolley, push-trolley, jigger, Kalamazoo, [1] velocipede, or draisine) is a railroad car powered by its passengers, or by people pushing the car from behind.
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 National 2.5 in Gauge Association continues to support live steam passenger hauling in 2.5-inch gauge using MES tracks. They use a "scale" appropriate to the original prototype modelling both standard and narrow gauge locomotives to run on 2.5-inch track. -1:16: 3 + 1 ⁄ 2 in (89 mm) A worldwide garden railroad scale.
However, if the degree of conicality is inappropriate for the suspension and track, an unpleasant oscillation can occur at high speeds. Recent research is also showing that marginal changes to wheel and rail profiles can improve performance further. [2] Not all railroads have employed conical-tread wheels.
Speeder in use in Santa Cruz, California. A speeder (also known as a section car, railway motor car, putt-putt, track-maintenance car, crew car, jigger, trike, quad, trolley, inspection car, or draisine) is a small railcar used around the world by track inspectors and work crews to move quickly to and from work sites. [1]
A railway track (CwthE and UIC terminology) or railroad track (NAmE), also known as permanent way (CwthE) [1] or "P Way" (BrE [2] and Indian English), is the structure on a railway or railroad consisting of the rails, fasteners, sleepers (railroad ties in American English) and ballast (or slab track), plus the underlying subgrade.
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