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-14144-01-01 Bergheim, DE
DIN EN 932-2 DIN EN 933-1 DIN EN ISO 17892-1 DIN EN ISO 17892-3 DIN EN ISO 17892-4 + 3 more
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DAkkS D-PL-14144-02-01 Hürth, DE
DIN EN ISO 19458 DIN EN ISO 10523 (C 5) DIN EN 27888 (C 8) DIN EN ISO 10304-1 (D 20) DIN EN ISO 11885 (E 22) + 3 more
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Radiomotive

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ACCREDIA 02089 Fino Mornasco, IT
9 IEC 61000-4-2: 2008 IEC 61000-4-3: 2006 IEC 61000-4-4: 2012 IEC 61000-4-5: 2005 + 3 more
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ACCREDIA 01067 Genova, IT
Railway catenary — current collection qu ERA_ERTMS_040063 v.1.2.0 ed. 2013 ERA_ERTMS_040063 v.3.0.0 ed. 2017 ERA_ERTMS_040092 v.1.0.0 ed. 2017 ERA_ERTMS_040092 v.1.1.0 ed. 2017 + 3 more
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Ramcare

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UKAS 0505 Lancing, GB
thermometer Pt100 Hydraulic pressure (gauge) DC VOLTAGE Measurement Temperature indicators, simulators, reco + 3 more
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UKAS 9329 Antrim, GB
HbA1c Cortisol (ALT) (TSH) Insulin + 3 more
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UKAS 32056 Ipswich, GB
Sound power — engineering method using a DIN EN IEC 62841-4-3 ISO 5395-1 ISO 5395-2 ISO 5395-3 + 2 more
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Re/Gent

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RvA L453 Helmond, NL
IEC 62552-1 IEC 62552-2 IEC 62552-3 ISO 23953-2 ISO 22041 + 3 more
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DAkkS D-PL-19353-02-02 Kassel, DE
(NM_001718: c.1-c.500) DIN EN 1371-1 DIN EN 1371-2 IEC 60335-1: 2010 IEC 61131-2: 2020 + 3 more
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ACCREDIA 01960 Bologna, IT
EPPO PM 7/14 rev 2 2014 Appendix 3 SFN DTU n.16 r.1 2024 EPPO PM 7/21 rev 3 2021 Appendix 5 SFN DTU n.20 r.0 2022
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ACCREDIA 01755 Vertemate con Minoprio, IT
EPPO PM 7/79 rev 2 2016/Cor 2017 EPPO PM 7/24 rev 5 2023 Appendix 5 EPPO PM 7/14 rev 2 2014 Appendix 3 EPPO PM 7/146 rev 2 2022 Appendix 4A SFN DTU n.69 r.0 2024 + 3 more
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ACCREDIA 00338 Palermo, IT
COI/T.20/Doc n 35/rev 1 2017 COI/T.20/Doc n 34/rev 1 2017 COI/T.20/Doc n 19/rev 5 2019 OIV-MA-AS313-01 cap 5.2 R2015 OIV-MA-AS313-02 R2015 + 3 more
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ACCREDIA 02017 Buttapietra, IT
EPPO PM 7/79 rev 2 2016/Cor 2017 EPPO PM 7/24 rev 5 2023 Appendix 5 EPPO PM 7/21 rev 3 2022 Appendix 6 EPPO PM 7/119 rev 1 2013
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RvA M087 Delft, NL
BS SOP004 using sandwich immunoassay Massaspectrometrie Spectrofotometrie Hemocytometrie en microscopie Monsterverwerking: registratie, opslag + 3 more
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Renishaw

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UKAS 4312 Wotton-under-Edge, GB
volume (CMM’s)
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ACCREDIA 00629 Roma, IT
ISO 18743 Reg UE 1375/2015 10/08/2015 GU UE
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DAkkS D-PL-17727-01-00 Oberhausen, DE
DIN EN 16647 DIN EN 1860-1 DIN EN 16510-1 DIN EN 16510-2-1 DIN EN 16510-2-2 + 3 more
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UKAS 0720 Birmingham, GB
Betriebsübertragungsmaß (enzephalomyopathische Form Hydraulic pressure (gauge) DC VOLTAGE AC CURRENT + 3 more
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ACCREDIA 00284 Trissino, IT
DIN EN ISO 10863 DIN EN ISO 13934-1 DIN EN 12530 DIN EN 13759 DIN EN ISO 3071 + 3 more
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RvA M022 Bilthoven, NL
Massaspectrometrie Pre-analyse Moleculaire diagnostiek d.m.v. PCR Antilichaambepaling d.m.v. immuno- assay Resistentiebepaling d.m.v. diffusie + 3 more
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UKAS 28772 Poole, GB
DIN EN 60068-2-14 DIN EN 60068-2-30 DIN EN 60529 IEC 60945 EN IEC 62368-1 + 3 more
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UKAS 4087 Hextable, GB
(HSG 248) – 2021 (PCM) based on HSG 248 OP11 based on HSG 248 OP04 based on HSG 248
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UKAS 0296 Hextable, GB
(HSG 264, 2012) Surveying for asbestos in premises
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DAkkS D-PL-12104-04-01 Hildesheim, DE
ISO 3795 DIN 75200 ISO 16750-5 ISO 20653 VDE 0468-2-1 + 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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