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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ACCREDIA 01278 Catanzaro Lido, IT
DIN EN ISO 17294-2 DIN ISO 11665-4 ISO 7899-2 ISO 9308-1 DIN EN ISO 9308-2 + 3 more
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DIN EN ISO 10523 DIN EN ISO 17294-2 DIN EN ISO 54321 ISO 6222 ISO 7899-2 + 3 more
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DIN EN ISO 17294-2 DIN EN ISO 9308-2 BS EN ISO 17294-2 ISO 9308-2 ISO 13164-4 + 3 more
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DIN EN ISO 9308-2 BS EN ISO 17294-2 ISO 9308-2 APAT CNR IRSA 2030 Man 29 2003 APAT CNR IRSA 2060 Man 29 2003 + 3 more
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DIN EN 27888 ISO 18787 DIN ISO 16649-2 DIN EN ISO 4833-1 DIN EN ISO 6579-1 + 3 more
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ISPRA Man 117 2014 DM 06/09/1994 GU n 288 10/12/1994
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DIN EN ISO 17294-2 BS EN ISO 17294-2 EPA 5030 EPA 8260 APAT CNR IRSA 2030 Man 29 2003 + 1 more
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DIN EN 15763 ISO 4832 ISO 21527-1 ISO 21527-2 DIN ISO 16649-2 + 3 more
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ISO 18787 DIN ISO 16649-2 DIN EN ISO 4833-1 DIN EN ISO 6579-1 DIN EN ISO 7932 + 3 more
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DIN EN ISO 17294-2 BS EN 15662 DIN EN 16294 DIN EN ISO 16050 DIN EN 14123 + 3 more
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dbSNP rs1800562, rs1799945, rs1800730, r DIN EN ISO 15549 DIN EN ISO 15587-2 DIN EN ISO 17294-2 DIN ISO 22036 + 3 more
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DIN EN ISO 17294-2 DIN EN 1484 DIN EN 1186-3 DIN EN 13286-47 DIN EN ISO 13164-4 + 3 more
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DIN EN 27888 DIN EN ISO 11885 DIN EN ISO 10523 DIN EN ISO 16703 DIN EN ISO 54321 + 3 more
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ACCREDIA 00255 Modena, IT
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UKAS 4352 Liverpool, GB
DIN EN ISO 15213-2 ISO 11290-1 ISO 11290-2 ISO 21528-2 ISO 6579-1 + 3 more
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DIN EN ISO 11885 DIN EN ISO 10304-1 DIN EN ISO 17294-2 DIN EN ISO 10304-4 ISO 10304-1 + 3 more
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ACCREDIA 01426 Fano, IT
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DAkkS D-PL-11334-01-01 Neusäß, DE
> 660 ID116 ASTM D 4052 DIN EN ISO 12185 DIN EN ISO 3405 + 3 more
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ACCREDIA 01537 Terni, IT
DIN EN ISO 11885 DIN EN ISO 10304-1 DIN EN ISO 17294-2 ISO 11731 DIN EN ISO 10304-4 + 3 more
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COFRAC 1-7444 Gif-Sur-Yvette, FR
DIN EN 61073-1 NF EN 60761-1 : V2005 NF EN 60761-3 IEC 60761-3 NF EN 60761-2 + 3 more
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ENAC LC10.098 San Ginés, ES
CEM TH-001 CEM ME-003 CEM TH-005 CEM TH-007 EURAMET cg-18 + 3 more
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DIN EN 1097-3 DIN EN 12235 DIN EN 14808 DIN EN 14809 DIN EN 13274-8 + 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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