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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DAkkS D-PL-17195-01-00 Varel, DE
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1) In den CMC sind die erweiterten Messu DIN EN ISO 3650:1999 > 300 mm Bügelmessschrauben 0 mm Feinzeiger + 3 more
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(p.Ala222Val); dbSNP rs1801133 dbSNP rs1801133 und rs1801131 EN ISO 11925-2 DIN V ENV 807 DIN CEN/TS 15082 + 3 more
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UKAS 8870 Worcester, GB
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UKAS 8873 Worcester, GB
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UKAS 23934 Worthing, GB
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Audiology | Otoscopy Audiology | History Taking Audiology | Pure Tone Audiometry Audiology | Impression Taking Audiology | Hearing Aid Fitting + 3 more
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DAkkS D-K-15040-01-00 Wuppertal, DE
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DAkkS D-PL-17611-01-01 Wuppertal, DE
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DAkkS D-K-21902-01-00 Wilsdruff ST Kesselsdorf, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) 1) In den CMC sind die erweiterten Messu − Waagen + 2 more
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DAkkS D-K-21769-01-00 Obertraubling, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) − Waagen Optoelektronische + 1 more
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DAkkS D-K-15073-01-01 Niederkrüchten, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) − Waagen Optoelektronische + 1 more
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DAkkS D-K-22220-01-00 Bad Wünnenberg, DE
Railway pantographs — requirements for m Volumendurchfluss Durchfluss von Gasen 25 m³/h
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ACCREDIA 01259 Tortona, IT
IEC 62279 DIN EN 60079-1 IEC 60079-1 DIN EN 60079-2 DIN EN 60079-11 + 3 more
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DAkkS D-PL-11122-01-00 Kloster Lehnin, DE
wie GR 1404 DIN EN ISO 22826 DIN EN ISO 3679 BS 1363-1 BS 1363-2: 1999 + 3 more
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DAkkS D-K-20615-01-00 Weilheim, DE
Tensile testing of metallic materials (I Vickers hardness test (ISO 6507) Railway braking — urban guided transport direktanzeigende > 200 °C Taupunkttemperatur + 3 more
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UKAS 2437 Udaipur 313 003, IN
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UKAS 26226 York, GB
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UKAS 9844 Hull, GB
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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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