Scope
UIC 519
Railway Wheelset Equivalent Conicity Determination
This test method specifies procedures for determining the equivalent conicity of railway wheelsets, a critical parameter governing vehicle stability and steering behavior on curves. Conicity describes the geometric relationship between wheel profiles and rail geometry, affecting how vehicles negotiate curves and respond to track irregularities. The measurement is essential for wheelset manufacturers, vehicle designers, and track maintenance specialists to ensure stable, safe operation and minimize wear and derailment risk. Accredited testing provides objective verification that wheelsets meet design specifications and regulatory requirements for dynamic safety.
What it measures
- Wheel profile geometry and taper angles
- Equivalent conicity value (ฮป)
- Wheelset geometric parameters and deviation
- Contact point position relative to wheel center
- Stability characteristics and steering forces
๐ฉ๐ช
DIN EN 13262
๐ฌ๐ง
BS EN 13262
๐ซ๐ท
NF EN 13262
๐ฎ๐น
UNI EN 13262
๐ช๐ธ
UNE EN 13262
๐ณ๐ฑ
NEN EN 13262
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Hrabakova 1861/1 | 702 00 Moravska Ostrava A Privoz | Republique Tcheque, CZ
NF X43-050 (parties utiles de la norme)
NF X43-050 (useful parts of the standard
NF X43-050 (parties utiles de la norme)
NF X43-050 (useful parts of the standard
ISO 16000-7
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Industries
Wheelset and bogie manufacturing
Rolling stock design and engineering
Track maintenance and infrastructure management
Vehicle certification and type approval
Railway research and development
Related Standards
- UIC 510-2 Railway vehicles โ Running gear โ Wheels and wheelsets โ Part 2: Definitions and gauges
- EN 13262 Railway applications โ Wheelsets and bogies โ Safety requirements for wheels
- UIC 644 Railway โ behaviour of coach bogies โ Y25 bogie type
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