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
🇩🇪 DIN EN 13262 🇬🇧 BS EN 13262 🇫🇷 NF EN 13262 🇮🇹 UNI EN 13262 🇪🇸 UNE EN 13262 🇳🇱 NEN EN 13262
1,632 Accredited labs
19 Countries

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DAkkS D-K-18423-01-00 Aschaffenburg, DE
Ebenheitsabweichung verkörperungen z.B. platten nach DIN 876:1984 Geradheitsabweichung ebener Flächen, z.B. + 3 more
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DAkkS D-K-21417-01-00 Albstadt, DE
(ein- und mehrgängige winde mit geradlinigen unsymmetrischem Profil 0,5 mm bis 6 mm) Außengewinde Nenndurchmesser + 3 more
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DAkkS D-K-22268-01-01 Aschaffenburg, DE
− Längenmessmittel − Längenmessgeräte − Drehwinkel Vickers hardness test (ISO 6507) Länge + 3 more
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DAkkS D-ML-13135-01-00 Würzburg, DE
Obligat anaerobe Bakterien mikroaerophile Bakterien ESBL-Bildner (multiresistente gramnegative säurefeste Stäbchen + 3 more
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DAkkS D-ML-13135-03-01 Würzburg, DE
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Jurjanz

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DAkkS D-K-15085-01-01 Schkeuditz, DE
Parallelendmaße aus 0,5 mm DIN EN ISO 3650:1999 Parallelendmaße aus > 100 mm Messschieber für 1350 mm + 3 more
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DAkkS D-PL-12119-01-00 Wuppertal, DE
DIN EN IEC 60947-5 IEC 60947-5-1 IEC 60947-5-2 DIN EN 60947-5 IEC 60947-5-3 + 3 more
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DAkkS D-K-19781-01-02 Hagen, DE
Temperaturmessgrößen Widerstandsthermometer* Railway braking — urban guided transport Railway vehicle body structural requirem Widerstandssensor * + 3 more
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DAkkS D-K-17233-01-00 Hochdorf-Assenheim, DE
Härteprüfmaschinen nach 100 HBW Brinell- und 226 HBW messeinrichtungen von Härteprüfmaschinen + 3 more
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DAkkS D-K-18972-01-01 Hemmingen, DE
eingängige zylindrische Einstellnormale Lehrdorne Durchmesser 1 mm Prüfstifte + 3 more
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DAkkS D-ML-13391-01-00 Frankfurt am Main, DE
basophile, eosinophile, Granulozyten Differenzialblutbild Erythrozyten Erythrozytenverteilungsbreite (RDW) + 3 more
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DAkkS D-PL-12091-01-01 Forchtenberg, DE
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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DAkkS D-K-15052-01-01 Pfaffenhofen, DE
Gleichspannung 0 mV Messgeräte > 200 mV > 2 V bis 20 V > 20 V bis 200 V > 200 V bis 1000 V + 3 more
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DAkkS D-K-20795-01-01 Waldaschaff, DE
Railway brake — magnetic track brakes (U − Ebenheit − Geradheit − Winkelnormale auch als Vor-Ort-Kalibrierung + 3 more
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DAkkS D-PL-11068-09-00 Karlsruhe, DE
DIN EN 60034-15 VDE 0530-15 IEC 60034-15 DIN EN 60044-7 VDE 0414-44-7 + 3 more
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DAkkS D-PL-11068-08-00 Karlsruhe, DE
DIN EN 62196-1: 2015 DIN EN 196-2 DIN EN 196-3 DIN EN 196-5 DIN EN 196-6 + 3 more
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DAkkS D-K-11068-01-00 Eggenstein-Leopoldshafen, DE
Luftkerma/-leistung Dosis Dosisleistung
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Kern & Sohn

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DAkkS D-K-19408-01-01 Balingen, DE
nichtselbsttätige − Waagen Festkörpervolumen Wägewert/ Masse oder + 3 more
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Kessler QMP

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DAkkS D-K-15118-01-01 Friedewald, DE
Parallelendmaße * 0,5 mm DIN EN ISO 3650:1999 Parallelendmaße * Einstelldorne * 1 mm Railway maintenance — track geometry (EN + 3 more
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DAkkS D-PL-19882-01-02 Böblingen, DE
DIN EN 61010-1 VDE 0411-1 IEC 61010-1 : 2010 EN IEC 61010-2 VDE 0411-2-010 + 3 more
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DAkkS D-K-22363-01-01 Wiesbaden, DE
- Gleichspannung / Messgeräte Spannungsquellen - Gleichstromstärke - Gleichstromwiderstand + 3 more
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DAkkS D-K-15127-01-01 Sindelfingen, DE
Beschleunigung* Beschleunigungsmessketten (Bezugsfrequenzen) (Mittelfrequenzbereich) Beschleunigungsaufnehmer, 0,1 m/s + 3 more
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DAkkS D-K-17572-01-02 Remscheid, DE
Vickers hardness test (ISO 6507) Kalibrier- und Messmöglichkeiten Drehmoment 0,01 N•m Railway — traction effort and braking fo 0,1 N-m + 3 more
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Kiwa

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DAkkS D-PL-11217-01-02 Berlin, DE
DIN EN ISO 7438 DIN 50100 ISO 9352 DIN ISO 48-4 DIN EN ISO 1675 + 3 more
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Kiwa Primara

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DAkkS D-PL-12089-01-01 Kaufbeuren, DE
BS 1363 DIN VDE 0620-2 DIN VDE 0620-2-1 ISO 12100: 2010 DIN EN 50124-1 + 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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