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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17 Countries

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DAkkS D-K-20476-01-01 Dortmund, DE
/ Messgeräte Radiometrie 100 µW/cm² stärkemessgeräte UV-A 365nm Linearität der + 3 more
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DAkkS D-K-20113-01-00 Wuppertal, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO Radiated emissions (CISPR 32) verwendete Abkürzungen:
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ACCREDIA 01402 Civitella in Valdichiana, IT
ETSI EN 301 489-1: V2.2.3 EN 61000-3-2 and EN 61000-3-3 IEC 61000-6-1 IEC 61000-4-4: 2012 1.4 Electrostatic Discharge EN 61000-4 + 3 more
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UKAS 0156 Congresbury, GB
(HSG 264, 2012) HSG 227 (2004)) Safety Executive guides HSG 264 (2012) and App 3 of HSG 227 (HSG 248) – 2021 + 3 more
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ENAC LC10.071 Boadilla del Monte, ES
(3 ± 0,5)  10-2 mol/mol (5 ± 0,5)  10- (5 ± 0,5)  10-2 mol/mol - 80 ˚C a 200 ˚C - 20 ˚C a < 23 ˚C 23 ˚C a 40 ˚C > 40 ˚C - 20 ˚C a 60 ˚C + 2 more
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ENAC LE1870 Rinconada, ES
ISO 2808 ISO 48-4 UNE-EN ISO 2808 ISO 2409 UNE-EN ISO 2360 + 3 more
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DAkkS D-K-22378-01-01 Mühldorf a. Inn, DE
Tensile testing of metallic materials (I Vickers hardness test (ISO 6507) Kraft Railway vehicles — specific test require Railway — traction effort and braking fo + 3 more
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ENAC LC10.201 Alacant, ES
(0,15 ± 0,02) · 10-2 mol/mol (0,50 ± 0,0 (6,0 ± 1,0) · 10-2 mol/mol (11,5 ± 2,0) (10 ± 2) · 10-6 mol/mol (50 ± 8) · 10-6 (0,15 ± 0,02) · 10-2 mol/mol (0,30 ± 0,0 1,000 ± 0,100 + 3 more
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CATAS SpA

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ACCREDIA 00024 San Giovanni al Natisone, IT
ISO 9308-1 ISO 7899-2 DIN EN ISO 11205 DIN EN ISO 10304-1 ISO 14189 + 3 more
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ENAC LC10.234 Bollullos de la Mitación, ES
EURAMET cg-18 EURAMET cg-17 CEM Edición
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DAkkS D-K-15125-01-01 Lorsch, DE
Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO elektronische Waagen Railway bogies — wheelsets and bogies st Datenlogger mit + 3 more
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DAkkS D-PL-12133-01-01 Ilmenau, DE
IEC 61000-4-2: 2008 VDE 0847-4-2 IEC 61000-4-3: 2006 VDE 0847-4-3 IEC 61000-4-4: 2012 + 3 more
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COFRAC 1-0301 Marne La Vallee Cedex 2, FR
NF P 92-501 NF P92-512 EN 13823 EN ISO 1716 NF P 92-504 + 3 more
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ENAC LE1385 Beasain, ES
DIN EN 13260 DIN EN 13261 DIN EN 13262 Railway end stop systems (EN 14752) Railway vehicle body structural requirem + 3 more
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ENAC LE149 Móstoles, ES
UNE-EN 60567 IEC 60814 UNE-EN 61198 IEC 60247 UNE-EN 61619 + 3 more
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CIEMAT

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ENAC LE471 Madrid, ES
OM H-3 based on ISO 9698:2019 ISO 13164-4 SM 3111 UNE-EN ISO 13160 ISO 10704 + 3 more
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ENAC LE2543 Santa Cruz de Tenerife, ES
UNE-EN ISO 5667-19 UNE-EN ISO 16665 UNE-EN 19493
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ENAC LE1355 Carreño, ES
SM 2510 B SM 4500 H+ UNE 7027-1 UNE 7887 SM 4500-NO B 2 + 3 more
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ENAC LE2151 Sevilla, ES
UNE-EN 136 UNE-EN 148-1 UNE-EN 140 UNE-EN 149 UNE-EN 13274-7 + 3 more
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ACCREDIA 00029 Busto Arsizio, IT
ISO 11423-1 DIN EN ISO 10523 BS EN ISO 17294-2 DIN EN ISO 15587-2 DIN EN ISO 7887 + 3 more
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COFRAC 1-1209 Garons, FR
DIN EN 1988-1 DIN EN ISO 17294-2 NF T 90-412 DIN EN ISO 7899-1 DIN EN ISO 10304-1 + 3 more
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COFRAC 1-5697 Aix-En-Provence, FR
DIN EN 12593 DIN EN 1097-4 DIN EN 933-1 DIN EN 12607-1 DIN EN 1427 + 3 more
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COFRAC 1-5706 Toulouse, FR
DIN EN 12390-6 DIN EN 62196-1: 2015 DIN EN 12390-3 NF P 98-532 NF P 98-533 + 3 more
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DAkkS D-PL-11312-01-00 Nürnberg, DE
DIN EN 16334 EN 50128 EN 50129 DIN EN 50215 EN 50657 + 3 more
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RvA I141 Noord-Scharwoude, NL
DIN EN 15746-4 DIN EN 14033-1 DIN EN 14033-2 DIN EN 15746-1 EN 14033-3 + 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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