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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IEC 60512-15-2 IEC 60512-15-3 IEC 60512-15-4 IEC 60512-15-5 DIN EN 1026 + 3 more
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ACCREDIA 00161 Genova, IT
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UKAS 9437 Newport, GB
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DAkkS D-K-15061-01-00 Nettetal, DE
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ACCREDIA 00025 Genova, IT
Tensile testing of metallic materials (I Charpy impact test (ISO 148-1) DIN EN ISO 17637 DIN EN ISO 17638 DIN EN ISO 4136 + 3 more
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ACCREDIA 01958 Maserà di Padova, IT
DIN EN 10160 DIN EN ISO 16810 DIN EN ISO 13588 DIN EN ISO 17637 DIN EN 13018 + 3 more
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ISO 14698-1 DIN EN 13098 Rapporti ISTISAN 2013/37 pag 42 Rapporti ISTISAN 2013/37 pag 32
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UKAS 2075 Colwyn Bay, GB
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ENAC LC10.259 Cartagena, ES
CEM EL-001 CEM EL-014 CEM EL CEM ME
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COFRAC 1-5882 Tarbes, FR
NF X 43-050 NF X 43-269 ISO 16000-7 FD X 46-033
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UKAS 2154 Weston-super-Mare, GB
ISO 3795 DIN EN 597-1 DIN EN 597-2 BS 7177 DIN EN 60068-2-14 + 3 more
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DAkkS D-K-15030-01-00 Villingen-Schwenningen, DE
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DAkkS D-PL-20563-01-00 Magdeburg, DE
DIN EN 10160 DIN EN ISO 16810 DIN EN ISO 17637 DIN EN 13018 DIN EN ISO 17638 + 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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