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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UKAS 27087 Denmark Hill, GB
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Railway — traction effort and braking fo Prüfkraftmesseinrichtung - Gleichspannung - Gleichstromstärke - Gleichstromwiderstand + 3 more
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DAkkS D-K-17572-01-02 Remscheid, DE
Vickers hardness test (ISO 6507) Railway — traction effort and braking fo Längenmessgeräte * Drehmoment- 0,2 N·m − Drehmoment + 3 more
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DAkkS D-K-15181-01-01 Boxberg-Unterschüpf, DE
Salt spray / neutral salt fog test (ISO Sound intensity — scanning method part 2 Environmental noise — determination of s Härte (WPM) * / Messgeräte + 3 more
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RvA L447 Rijswijk Zh, NL
EN ISO 11925-2 IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 IEC 61000-4-6: 2013 DIN EN 55011: 2018 + 3 more
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ACCREDIA 00001 Cadriano di Granarolo Emilia, IT
Tensile testing of metallic materials (I Salt spray / neutral salt fog test (ISO - PiM rs6647, PiZ rs28929474, rs17580 DIN EN ISO 18203 DIN EN ISO 6506-1 + 3 more
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ACCREDIA 00233 Padova, IT
ANSI C63.4a:2017 ANSI C63.4:2014 ANSI C63.10:2013 RSS-GEN Issue 5 RSS-102 Issue 6 + 3 more
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DAkkS D-PL-11217-01-02 Berlin, DE
229600 (A150P u. A175 DIN EN ISO 7438 DIN 51451 DIN EN 50178: 1998 ISO 21527-1 + 3 more
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Kiwa

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DAkkS D-PL-11217-03-03 Rostock, DE
229600 (A150P u. A175 DIN EN ISO 7438 DIN 51451 DIN EN 50178: 1998 ISO 21527-1 + 3 more
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UKAS 8896 Rasssau, GB
DIN EN ISO 80601-2-87 DIN EN 10200 DIN EN 1159-3 DIN ISO 10381-7 DIN EN 12288 + 3 more
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UKAS 0692 Cheltenham, GB
Faktor XII-Gen rs1801020 DIN EN 15502-1 DIN EN 15502-2-1 DIN EN 15502-2-2 DIN EN 1186-13 + 3 more
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Kiwa

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UKAS 2360 Brentwood, GB
IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 IEC 61000-4-4: 2012 IEC 61000-4-5: 2005 IEC 61000-4-6: 2013 + 3 more
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RvA L015 Rijswijk Zh, NL
100 HV 125 Faktor XII-Gen rs1801020 (Type 2, 5bp-Insertion)), MYD88 -22018G/A, rs182549 Laktoseintoleranz (LCT -14055 + 3 more
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Kiwa Primara

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DAkkS D-PL-12089-01-01 Kaufbeuren, DE
ISO 6722-2 ISO 20653 DIN EN ISO 6270-2 DIN EN 50155 VDE 0115-200 + 3 more
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DAkkS D-K-15224-01-00 Fulda, DE
Railway braking — urban guided transport Railway vehicle body structural requirem - Thermopaare, Thermoelemente Taupunkttemperatur thermoelemente *) + 3 more
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Klingelnberg

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DAkkS D-K-21339-01-00 Hückeswagen, DE
systeme ohne Antastung Verzahnungsmessgrößen Teilkreisdurchmess Flankenliniennormale Schrägungswinkel: β Schrägungswinkel d Teilkreisdurchmesser + 3 more
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DAkkS D-ML-19856-01-00 Ingolstadt, DE
Ethanol tration von Harnsäure tration von Harnstoff pH - Wert Schwefeldioxid SO 2 + 3 more
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DAkkS D-ML-13265-01-00 Nürnberg, DE
Aceton Ethanol F x: 2 kN Creatinin Digitoxin + 3 more
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DAkkS D-ML-13321-01-01 Wolfsburg, DE
Digitoxin Digoxin Cortisol Testosteron Glucose + 3 more
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DAkkS D-ML-13355-03-00 Stuttgart, DE
Digitoxin Digoxin HbA1c Aldosteron Cortisol + 3 more
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DAkkS D-ML-13295-04-00 München, DE
tration von Harnsäure tration von Harnstoff Digitoxin Digoxin HbA1c + 3 more
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DAkkS D-ML-13295-02-00 München, DE
PTPN11 erworbener Chromosomensatz Peroxidase-Reaktion Knochenmark Differenzierung Knochenmark + 3 more
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DAkkS D-ML-13295-08-01 München, DE
angeborener Chromosomensatz (partiell) a Die Proben werden vom Labor ohne vorhe
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DAkkS D-PL-13295-01-00 München, DE
tration von Harnsäure tration von Harnstoff Digitoxin Digoxin HbA1c + 3 more
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DAkkS D-ML-13295-04-01 München, DE
Digitoxin Digoxin HbA1c Cortisol Testosteron + 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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