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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OIV-MA-AS313-01 cap 5.2 R2015 OIV-MA-AS313-02 R2015 OIV-MA-AS323-04B R2009 OIV-MA-AS2-03B R2012 OIV-MA-AS311-02 R2009 + 3 more
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ISO 3795 DIN EN ISO 659 DIN EN ISO 16212 DIN EN ISO 10863 DIN EN 1015-11 + 3 more
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BS EN ISO 16911-1:2013 using ISO 23695 NF EN 13284-1 APAT CNR IRSA 2060 Man 29 2003 ISPRA Man 117 2014 + 3 more
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DIN EN 27888 ISO 4832 ISO 15214 ISO 21527-2 DIN ISO 16649-2 + 3 more
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DIN EN 27888 ISO 15214 DIN EN ISO 6579-1 DIN EN ISO 7932 DIN EN ISO 11290-1 + 3 more
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COFRAC 1-7543 Sourdun, FR
Tensile testing of metallic materials (I Salt spray / neutral salt fog test (ISO ISO 6270-1 DIN EN ISO17892-12 ISO 19840 + 3 more
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COFRAC 1-5710 Saint-Quentin, FR
Tensile testing of metallic materials (I DIN EN 12390-3 DIN EN 933-1 DIN EN 933-3 DIN EN 1097-2 + 3 more
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COFRAC 1-5697 Aix-En-Provence, FR
Tensile testing of metallic materials (I DIN EN 62196-1: 2015 DIN EN 12390-3 DIN EN 932-2 DIN EN 933-1 + 3 more
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COFRAC 1-5706 Toulouse, FR
DIN EN 62196-1: 2015 DIN EN 12390-3 DIN EN 932-1 DIN EN 932-2 DIN EN 932-3 + 3 more
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DAkkS D-PL-19907-01-01 Zorneding-Pöring, DE
DIN 75200 DIN EN ISO 5173 DIN EN ISO 18203 DIN EN ISO 6506-1 DIN EN ISO 6507-1 + 3 more
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DAkkS D-K-19907-01-01 Aichach, DE
Elementanalyse in Festkörpern spektrometrie von Kupfer (Cu) Nickel (Ni) + 3 more
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DIN EN 16334 DIN EN 50215 EN 50128 EN 50657 EN 50129 + 3 more
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ACCREDIA 00719 Longarone, IT
DIN EN 61439-7: 2016-10 DIN EN ISO 17636-2 DIN EN ISO 1172 DIN EN ISO 17075-1 DIN EN 1122 + 3 more
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ACCREDIA 01189 Longarone, IT
DIN EN 61439-7: 2016-10 DIN EN ISO 16212 DIN EN ISO 17636-2 DIN EN 143 DIN EN 13274-3 + 3 more
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UKAS 2338 Burton-upon-Trent, GB
ISO 11948-1 DIN EN 13126-19 DIN EN ISO 16911-1 DIN EN 13284-1 DIN EN 14790 + 3 more
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DIN EN 1926 DIN EN 12372 DIN EN 1936 DIN EN 12371 DIN EN 13755 + 3 more
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DAkkS D-K-19566-01-00 Hilden, DE
Railway pantographs — requirements for m > 0,05 bar > 1,0 bar bis dV/dt von (ein- oder mehrgängige + 3 more
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DIN EN 442-2 DIN EN 1860-1 IEC 62442-1 DIN EN ISO 16890-1 DIN EN ISO 16890-2 + 3 more
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COFRAC 1-7263 Senlis, FR
Tensile testing of metallic materials (I Charpy impact test (ISO 148-1) DIN EN ISO 4136 DIN EN ISO 5173 DIN EN ISO 9016 + 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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