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 (λ)
  • Wheelset geometric parameters and deviation
  • Contact point position relative to wheel center
  • Stability characteristics and steering forces
🇧🇪 NBN EN 13262 🇩🇪 DIN EN 13262 🇬🇧 BS EN 13262 🇫🇷 NF EN 13262 🇮🇹 UNI EN 13262 🇪🇸 UNE EN 13262 🇳🇱 NEN EN 13262
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Salt spray / neutral salt fog test (ISO Sound power — in-situ using reference so Sound intensity — scanning method (ISO 9 Sound intensity — scanning method part 2 Hand-arm vibration — practical guidance + 3 more
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Railway braking — urban guided transport Railway vehicle body structural requirem Railway bogies — wheelsets and bogies st - Gleichspannung - Gleichstromwiderstand + 3 more
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UKAS 1634 Whitley Bay, GB
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ISO 4832 ISO 21527-1 ISO 21527-2 DIN ISO 16649-2 DIN EN ISO 4833-1 + 3 more
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CEM ME009
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Aktivität inkorporierter Radionuklide
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DIN EN 1815 DIN 8959 DIN SPEC 91323 DIN 8959 Ber. 1 DIN 1815 + 1 more
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RvA K999 Delft, NL
albicans, Chlamydia pneumoniae, Chlamydi HCS LF 1 3 HCS LF 3 2 HCS LF 3 3 HCS LF 4 2 + 3 more
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TEMPERATURE parameters and ranges) indicators or recorders WEIGHING INSTRUMENTS
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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 — Running gear — Wheels and wheelsets — Part 2: Definitions and gauges
  • EN 13262 Railway applications — Wheelsets and bogies — Safety requirements for wheels
  • UIC 644 Railway — behaviour of coach bogies — Y25 bogie type

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