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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ETSI EN 319 401 ETSI EN 319 411-1 ETSI EN 319 411-2 ETSI EN 319 412
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Railway braking — urban guided transport Railway vehicle body structural requirem - Temperatur-Blockkalibratoren Taupunkttemperatur 1) In den CMC sind die erweiterten Messu + 3 more
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DAkkS D-K-18666-01-02 Germering, DE
Railway braking — urban guided transport - Gleichspannung - Gleichstromstärke - Gleichstromwiderstand Quellen + 3 more
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DIN EN 60895 IEC 60895 IEC 60855-1 CEI EN 60855-1
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- Gleichstromwiderstand Wechselspannung 0,22 mV / Messgeräte 1350 mm Innen- und Tiefenmaße + 3 more
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ACCREDIA 01593 Livorno, IT
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DAkkS D-K-17589-01-01 Steinenbronn, DE
Railway brakes — disc brake pads (UIC 54 Railway braking — urban guided transport Railway bogies — wheelsets and bogies st Railway pantographs — requirements for m Railway vehicles — specific test require + 3 more
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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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