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1. Steel wheel bearing – Steel rail
1.1 Bearing geometry
The railway bearing is a combination of two components:
the steel wheels that make up the axle;
the two rolling and guiding tracks, also made of steel.
The profile of the wheels is conical, with a half-angle at the apex α, enabling each wheel to travel the different lengths of each rail line in a curve by positioning itself on the corresponding diameter of the cone. The wheels are fitted with a circular shoulder called a "flange", of width b, helping to guide the axle. The bearing geometry is shown in figure 1 (see also
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Steel wheel bearing – Steel rail
Wheel bearing technology – track
Bibliography
Standards and norms
- Technical approval of monoblock wheels – Application document for standard EN 13979-1 - UIC 510-5 OR -
- Towed equipment – Axle spacing - UIC 511 O -
- Passenger transport equipment – Bogies – Running gear - UIC 515 OR -
- Passenger transport equipment – Carrier bogies – Rolling bearings – General provisions applicable to bogie components - UIC 515-1 OR -
- Méthode de détermination de la conicité...
Websites
Manufacturers – Suppliers – Distributors (non-exhaustive list)
ALSTOM Transport http://www.alstom.fr
GHH-VALDUNES Group: production of wheels, axles, wheelsets for railways http://www.ghh-valdunes.com
Régie autonome des Transports...
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