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
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19 Countries

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DAkkS D-K-15109-01-01 Titisee-Neustadt, DE
Druck * Absolutdruck Pabs 1 bar; 3 bar Negativer und positiver Überdruck + 3 more
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UKAS 2083 Wellington, GB
(HSG 248) – 2021 M4 based on HSG 248 (PCM) based on HSG 248 M3 based on HSG 248 (HSG 264, 2012) + 1 more
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G&M Procter

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UKAS 2727 Perth, GB
based on ISO 11133:2014+Amd dependent) based on BS EN based on BS EN 12322:1999
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UKAS 4037 Welwyn Garden City, GB
(HSG 248) – 2021 (PCM) based on HSG 248 PRO02 based on HSG 248
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DAkkS D-PL-14170-01-03 Hamburg, DE
DIN EN 12579 DIN 19698-1 DIN 19698-2 DIN 51750-2 DIN ISO 11277 + 3 more
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ENAC LE2121 Llinars del Valles, ES
ISO 9994 ISO 22702 ASTM F400 ASTM F2201
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GHMT

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DAkkS D-PL-17559-01-00 Bexbach, DE
DIN EN 50173-1 DIN EN 50173-2 DIN EN 50173-3 DIN EN 50173-4 DIN EN 50173-5 + 3 more
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GINGER CEBTP

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COFRAC 1-0002 Elancourt, FR
DIN EN 1097-1 DIN EN ISO 10140-2 DIN EN 933-3 DIN EN 1097-2 DIN EN ISO 10140-4 + 3 more
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GINGER LECES

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COFRAC 1-7433 Saint-Julien-Les-Metz, FR
DIN EN 14385 ETSI EN 301 489-1 V2.2.3 2019-11 NF X43-551 IS EN 1948-1:2006 2006 DIN EN 14789 + 3 more
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DAkkS D-PL-17563-01-00 Stuhr, DE
DIN EN 12469 BS 5726-1 DIN 1946-4 DIN EN 12599 DIN 12980 + 1 more
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RvA C480 Ljubljana, NL
IEC 17025
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DAkkS D-PL-11085-01-00 Frankfurt am Main, DE
DIN 51757 DIN EN ISO 12185 DIN EN ISO 3405 DIN EN 13016-1 DIN EN 237 + 3 more
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DAkkS D-K-11243-01-00 Stade, DE
Koordinatenmesstechnik Lasertracker* 0,5 m 1) In den CMC sind die erweiterten Messu Bügelmessschrauben* 0 mm + 3 more
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DAkkS D-K-20313-01-01 Nürnberg, DE
- Gleichspannung Messgeräte > 0,22 V > 2,2 V > 11 V > 22 V + 3 more
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DAkkS D-PL-14479-01-00 Würzburg, DE
DIN EN ISO 5667-1 (A 4) DIN 38402-A 11 DIN 38402-A 12 DIN 38402-A 13 DIN EN ISO 5667-6 (A 15) + 3 more
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ENAC LC10.194 Palau-solità i Plegamans, ES
EURAMET cg-18 CEM cg-19 UNE-EN ISO 14644-3 UNE-EN ISO 14644-1
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DAkkS D-ML-13406-01-00 Rüsselsheim, DE
Erythrozytenzahl Hämatokrit Leucozytendifferenzierung Leucozytenzahl MCV + 3 more
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DAkkS D-ML-18202-01-00 Rüsselsheim, DE
Erythrozytenzahl Hämatokrit Leucozytendifferenzierung Leucozytenzahl MCV + 3 more
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DAkkS D-K-18186-01-00 Bitterfeld-Wolfen, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) Innen- und Tiefenmaße Wägewert/ + 3 more
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COFRAC 1-6977 Wintzenheim, FR
NF X 43-269 – Annexe K NF X 43-050 NF X43-050 (parties utiles de la
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GRAVICAL

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DAkkS D-K-21136-01-00 Damme, DE
Innen- und Tiefenmaße Konventioneller Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) + 1 more
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DAkkS D-K-15106-01-02 Bickenbach, DE
Vickers hardness test (ISO 6507) Kraft Kraftaufnehmer und Sound power — survey method (ISO 3746) 0,2 MN + 3 more
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DAkkS D-K-20936-01-01 Stuttgart, DE
Abgasmessgeräte für motoren Transmissionsfilter Trübungsgrad N Transmission T + 3 more
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DAkkS D-PL-18598-01-02 Essen, DE
DIN 30655-1 DIN 30655-2 DIN 3590-1 DIN 3590-2 DIN 30652-2 + 3 more
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UKAS 4203 Pontypridd, GB
BS EN ISO 18119:2018+A1:2021 BS EN 14876:2007/Internal proceduresDiss BS EN ISO 10460:2018 ISO 23088:2020
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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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