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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positiver Überdruck Volumendurchfluss > 41 bar Positiver und negativer dV/dt von strömenden + 3 more
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RvA M334 Philipsburg, Sint Maarten, NL
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ACCREDIA 00072 Calusco D'Adda, IT
DIN EN 196-2 DIN EN 13639 DIN EN ISO 21644 DIN EN ISO 21654 DIN EN ISO 21656 + 3 more
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DAkkS D-K-23091-01-01 Heidgraben, DE
Empfänger für Radiometrie 100 µW/cm Photometrie
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DAkkS D-PL-17150-02-04 Düsseldorf, DE
10/1500 DIN EN ISO 2719 DIN EN ISO 3679 DIN EN ISO 19458 DIN EN ISO 2592 + 3 more
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abs positiver Überdruck Absolutdruck Pabs Positiver Überdruck p e Negativer und + 3 more
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Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) Railway braking — urban guided transport Railway vehicle body structural requirem + 3 more
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DAkkS D-PL-14551-01-01 Wiesbaden, DE
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UKAS 9868 Daventry, GB
Salt spray / neutral salt fog test (ISO DIN EN 1628 DIN EN 1629 DIN EN 12046-2 DIN EN 1026 + 3 more
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DAkkS D-PL-21253-01-01 Wickede, DE
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ISO 21940-21 DIN ISO 21940-12 DIN ISO 21940-12
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DAkkS D-PL-21147-01-01 Haryana, IN
DIN EN ISO 9934-1 DIN EN ISO 12952-1 BS 5852 DIN EN 1371-1 DIN EN 62271-103 + 3 more
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DAkkS D-PL-21471-01-01 Hong Kong, CN
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DAkkS D-PL-12083-01-04 Bönnigheim, DE
DIN EN 1021-1 DIN EN 1021-2 ASTM D 2863 ASTM E 648 DIN EN 12681-1 + 3 more
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DAkkS D-K-15198-01-00 Hanau, DE
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DAkkS D-K-12094-02-00 Oberusel, DE
Railway braking — urban guided transport Railway vehicle body structural requirem Railway bogies — wheelsets and bogies st Railway applications — vehicle reference - Thermopaare, Thermoelemente + 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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