EN 15302

Railway Wheelset Equivalent Conicity Measurement

This test method defines procedures for determining the equivalent conicity of railway wheelsets, a critical geometric parameter that affects vehicle stability, curving behavior, and wear characteristics. Equivalent conicity influences hunting oscillations, lateral forces, and noise generation during operation. The measurement is essential for railway manufacturers, maintainers, and operators to ensure safe and economical wheelset performance across different track geometries. Accreditation ensures consistent, reproducible measurements that support compliance with European interoperability standards and informed maintenance decisions.

What it measures

  • Equivalent conicity value of wheelset profiles
  • Wheel profile geometry and wear patterns
  • Contact angle and friction coefficient relationships
  • Stability margin and hunting potential
  • Comparative conicity values for different operating conditions
🇩🇪 DIN EN 13715 🇬🇧 BS EN 13715 🇫🇷 NF EN 13715 🇮🇹 UNI EN 13715 🇪🇸 UNE EN 13715 🇳🇱 NEN EN 13715 🇩🇪 DIN EN 13296 🇬🇧 BS EN 13296 🇫🇷 NF EN 13296 🇮🇹 UNI EN 13296 🇪🇸 UNE EN 13296 🇳🇱 NEN EN 13296
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COFRAC 1-0618 Le Bourget Du Lac Cedex, FR
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COFRAC 1-6449 Saint-Etienne-Du-Rouvray, FR
DIN ISO 17289 DIN EN ISO 10523 NF X 31-615 (Uniquement DIN EN ISO 7393-2 DIN EN 27888 + 1 more
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COFRAC 1-7056 Gennevilliers, FR
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COFRAC 1-6452 Brive-La-Gaillarde, FR
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COFRAC 1-6454 Toulouse, FR
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COFRAC 1-0161 Cergy, FR
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COFRAC 1-6746 Saint-Herblain, FR
ISO 18787 AM09 based on BS ISO 21527-1: DIN EN ISO 11290-1 NF V04-408 0.95) based on BS ISO 21527-2:2008 + 2 more
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COFRAC 1-0889 Fontaine, FR
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COFRAC 1-7288 La Fleche, FR
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COFRAC 1-0869 Paris, FR
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COFRAC 1-0824 Lisses, FR
DIN EN ISO 1833-13 DIN EN ISO 1833-14 DIN EN ISO 1833-16 DIN EN ISO 1833-17 DIN EN ISO 1833-18 + 3 more
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SNCF - AGENCE D'ESSAIS FERROVIAIRE

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COFRAC 1-6879 Vitry Sur Seine, FR
ISO 13737 NF ISO 22286 ASTM D 2137 NF F19-503 NF T60-190 + 3 more
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SOCIETE FRANÇAISE DE CERAMIQUE

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COFRAC 1-0062 Les Ulis, FR
DIN EN ISO 10545-3 DIN EN 997 DIN EN ISO 10545-4 DIN EN ISO 10545-14 DIN EN ISO 10545-6 + 3 more
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SOCOTEC ENVIRONNEMENT

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COFRAC 1-7125 Guyancourt, FR
DIN EN 14385 ETSI EN 301 489-1 V2.2.3 2019-11 DIN EN ISO 21877 NF X 43-317 DIN EN 14181 + 3 more
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COFRAC 1-2383 Hombourg, FR
ISO 11737-3 DIN EN ISO 11737-2 NF EN 13824 (norme BS EN ISO 11737-1:2018
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COFRAC 1-7174 Velaux, FR
DIN EN 12469 NF S 90-351 BS EN ISO 14644-1:2015 ISO 14644-3
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COFRAC 1-6120 Lempdes, FR
NF T 90-412 NF U47-101 DIN EN ISO 7899-1 DIN ISO 16649-2 DIN EN ISO 6888-2 + 3 more
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TIMKEN EUROPE RAIL APPLICATION TEST LABORATORY

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COFRAC 1-2004 Colmar, FR
DIN EN 12082
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TOXILABO

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COFRAC 1-1941 Nantes, FR
NF ISO 21438-3 NF X 43-264 NF ISO 21438-1 ISO 16200-2 NF ISO 21438-2 + 3 more
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VALEO ELECTRIFICATION - Laboratoire d'essais et de validations

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COFRAC 1-6561 Sainte-Florine, FR
ISO 16750-3 IEC 60068-2-80) IEC 60068-2-53 limitée à : IEC 60068-2-14 fait IEC 60068-2-1 et + 3 more
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Industries

Railway rolling stock manufacturers Wheelset component suppliers Railway depot maintenance facilities Infrastructure maintenance organizations Rail research and development organizations

Related Standards

  • EN 13715 Railway applications - Wheel sets and bogies - Technical file requirements for wheels
  • EN 13296 Railway applications - Wheelsets and bogies - Wheels - Technical specifications for wheels
  • EN 14363 Railway applications - Testing and Simulation for the acceptance of running characteristics of railway vehicles - Running behaviour and stationary tests

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