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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Institut für Diabetestechnologie, Forschungs- und Entwicklungsgesellschaft mbH an der Universität Ulm

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Institut für Hygiene und Umwelt

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Bakterien, Pilze Salmonella spp. Ektoparasiten Corynebakterien Influenza A Virus + 3 more
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DIN EN ISO 2812-1 DIN EN ISO 2813 DIN EN ISO 6270-2 DIN EN 60068-2-30 DIN EN ISO 4628-4 + 3 more
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Institut für Lackprüfung Andreas Keiner

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DAkkS D-PL-19060-01-01 Wettenberg, DE
DIN EN ISO 6270-2 ISO 6270-2 DIN EN ISO 2360 DIN EN ISO 2178 DIN EN ISO 16474-3 + 3 more
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Institut für Luft- und Kältetechnik gemeinnützige Gesellschaft

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DAkkS D-PL-11043-02-00 Dresden, DE
DIN EN 303-5 DIN EN 303-5
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Institut für Luft- und Kältetechnik gemeinnützige Gesellschaft mbH Testzentrum PLWP

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DIN EN ISO 11426 ISO 11427 ISO 11426 UNE-EN 15934 DIN 51081
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Institut für Mikrobiologie der Bundeswehr Zentralbereich Diagnostik

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Institut für Umwelt & Energie, Technik & Analytik e.V. (IUTA)

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Institut für Umweltmedizin Mikrobiologisches Labor Rainer Stumm

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DAkkS D-PL-13209-01-01 Erfurt, DE
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Institute for International Product Safety

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Institute for International Product Safety

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DAkkS D-K-19125-01-01 Bonn, DE
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DAkkS D-PL-19052-01-00 München, DE
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Integrated Pathology Solutions

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UKAS 8646 Harrogate, GB
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UKAS 9033 Steeton, GB
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Intek

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ACCREDIA 00855 Rezzato, IT
9 ISO 20653 DIN EN 50155 DIN EN 60068-2-14 DIN EN 60068-2-30 + 3 more
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ACCREDIA 02096 Brunico, IT
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Intertek Caleb Brett GERMANY

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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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