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-21256-01-00 Bensheim, DE
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DAkkS D-PL-11128-01-01 Bissingen an der Teck, DE
ISO 16750-5 ISO 20653 DIN EN ISO 6270-2 DIN EN IEC 60068-2-11 DIN EN IEC 60068-2-13 + 3 more
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DAkkS D-K-15024-01-01 Heusweiler, DE
Vickers hardness test (ISO 6507) Charpy impact test (ISO 148-1) Railway braking — urban guided transport Railway vehicle body structural requirem Railway bogies — wheelsets and bogies st + 3 more
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DAkkS D-K-15097-01-01 Pinneberg, DE
Vickers hardness test (ISO 6507) Railway brake — magnetic track brakes (U Railway braking — urban guided transport Elektrische Messgrößen Gleichstrom- und Niederfrequenzmessgröße + 3 more
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DAkkS D-PL-17152-01-00 Aachen, DE
Faktor XIII-Gen rs5985 DIN EN ISO 9239-1 DIN EN 1021-1 DIN EN 1021-2 ASTM E 1354 + 3 more
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TIRA

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DAkkS D-K-17684-01-00 Schalkau, DE
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Tauw

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DAkkS D-PL-14439-01-02 Moers, DE
DIN EN 27888 DIN EN ISO 22476-2 DIN 18134 DIN 19682-1 DIN 19682-2 + 3 more
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Techmetrics

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DAkkS D-K-22606-01-01 Winnenden, DE
Railway braking — urban guided transport Railway bogies — wheelsets and bogies st Taupunkttemperatur − Messgeräte für relative Feuchte meter, direkt anzeigende + 3 more
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DAkkS D-K-15173-01-00 Gießen, DE
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DAkkS D-PL-11048-01-01 Darmstadt, DE
P1433, P14-3-3 ISO 37 DIN EN 12150-2 DIN EN 12337-2 DIN EN 1279-5 + 3 more
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DAkkS D-K-11048-01-02 Darmstadt, DE
Sound power — survey method (ISO 3746) Vibration measuring instruments — test m Acoustics — tonality assessment (DIN 456 Railway ride comfort for passengers (EN Railway brake — automatic variable load + 3 more
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DAkkS D-PL-14063-05-01 München, DE
DIN EN ISO 17141 DIN EN ISO 19458 DIN EN ISO 19458 (K 19) DIN EN 17735 DIN EN ISO 11138-7 + 2 more
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DAkkS D-ML-14063-01-00 München, DE
Mykobakterien Clostridioides difficile-GDH säurefeste Stäbchen Komplex Plasmodien + 3 more
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DAkkS D-ML-14063-02-00 München, DE
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DAkkS D-PL-14063-08-00 München, DE
DIN EN 13230-2 DIN EN 13230-3 DIN EN 13230-4 DIN EN 13146-1 DIN EN 13146-2 + 3 more
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DAkkS D-PL-16006-04-00 Erfurt, DE
EN 81-20* EN 81-28* EN 81-50* EN 81-72* EN 81-73* + 3 more
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DAkkS D-K-22502-01-01 Ilmenau, DE
& 2: 2008 Leuchtdichte L / vom Typ L3 Standard Normfarbwertanteile x , y / LED-basierte Farb- und + 3 more
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DAkkS D-PL-11034-01-01 Leipzig, DE
und VDI/VDE 2604 AK gegen BP 180 rs2066845 Anti-Yo p62 DIN EN ISO 9934-1 + 3 more
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DAkkS D-PL-19129-01-02 Bremerhaven, DE
DIN EN ISO 6887-3 ISO 15214 DIN ISO 16649-2 DIN EN ISO 4833-1 DIN EN ISO 6579-1 + 3 more
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DAkkS D-K-17602-01-01 Köln, DE
Railway vehicles — specific test require - Gleichspannung - Gleichstromstärke - Gleichstromwiderstand - Wechselspannung + 3 more
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DAkkS D-K-18197-01-00 Martinroda, DE
Railway braking — urban guided transport Railway vehicle body structural requirem - Temperatur-Blockkalibratoren Taupunkttemperatur 1) In den CMC sind die erweiterten Messu + 3 more
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DAkkS D-K-18666-01-02 Germering, DE
Railway braking — urban guided transport - Gleichspannung - Gleichstromstärke - Gleichstromwiderstand Quellen + 3 more
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DAkkS D-K-18316-01-00 Backnang, DE
- Gleichstromwiderstand Wechselspannung 0,22 mV / Messgeräte 1350 mm Innen- und Tiefenmaße + 3 more
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DAkkS D-K-22318-01-00 Neu Wulmstorf, DE
positiver Überdruck Positiver Überdruck p e (ein- oder mehrgängige Überdruck p > 70 bar
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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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