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5. Bearing maintenance
Wheel and flange profiles are subject to wear for a variety of reasons:
in the tapered part of the bearing, friction in contact with adhesion, which leads to deterioration of the surface finish through deformation and removal of material;
braking force, when applied by means of brake shoes rubbing on the wheel profile;
parasitic axle movements, particularly yawing, which accentuate wear, but do not significantly degrade the slope value;
crossing curves in the track, which, if accompanied by guiding contact on the flange, cause wear and therefore thinning of the flange;
the crossing of switches and crossings, which causes contact between the inner face of the flange and the guide rail
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Bearing maintenance
Railway rolling stock and the environment
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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