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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ENAC LE554 Paterna, ES
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INSTITUTO TECNOLÓGICO DEL EMBALAJE, TRANSPORTE Y LOGÍSTICA, ITENE.

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ENAC LE678 Paterna, ES
ASTM D5276 ASTM D642 ASTM D4728 ASTM D882 ASTM D 999 + 3 more
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INSTITUTO TECNOLÓGICO Y GRÁFICO TAJAMAR, (ITGT) DEL CENTRO CULTURAL Y DEPORTIVO TAJAMAR

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ENAC LC10.149 Madrid, ES
(380 - 780 nm) 1 < R ≤ 100 0,01< DO ≤ 0,1 0,1 < DO ≤ 0,3 1,1 < DO <
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INSTITUTO TECNOLÓXICO PARA O CONTROL DO MEDIO MARINO DE GALICIA (INTECMAR)

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ENAC LE394 Vilagarcía de Arousa, ES
ISO 11452-6 DIN CEN ISO 15216-2 ISO 16649-3 UNE-EN 14526 ISO 15216-1 + 3 more
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INSTITUTO VALENCIANO DE MICROBIOLOGIA

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ENAC LE1286 Bétera, ES
10/1500 DIN EN 1104 ISO 16869 ISO 22196 DIN 52170-2 + 3 more
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INSTRUMENTACIÓN ANALITICA

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ENAC LC10.164 Prat de Llobregat, ES
(500 ± 50) mPa · s (12500 ± 1250) mPa ·
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INSTRUMENTOS TESTO

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ENAC LC10.091 Cabrils, ES
2 · 10-6 mol/mol  C  100 · 10-6 mol/mo
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INTERCOMMUNALE D'ETUDE ET DE GESTION (I.E.G.) SC - Laboratoire SHA

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BELAC 120-TEST Mouscron, BE
ISO 6222 ISO 7899-2 ISO 9308-1 ISO 14189 ISO 16266 + 3 more
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COFRAC 1-1296 Heudebouville, FR
DIN EN ISO 12952-1 DIN EN ISO 13934-1 DIN EN 13759 DIN EN ISO 105-X12 DIN EN ISO 14184-1 + 3 more
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ID116 ASTM D 4052 ASTM D 5191 ASTM D 5453 ASTM D 381 + 3 more
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ACCREDIA 00151 Lastra a Signa, IT
DIN EN ISO 17294-2 DIN EN 1122 DIN EN 1186-1 DIN EN 1186-3 DIN EN 12472 + 3 more
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ACCREDIA 00774 Fermo, IT
ISO 4832 ISO 15214 DIN EN ISO 6579-1 DIN EN ISO 7932 ISO 11731 + 3 more
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ENAC LE2801 Consuegra, ES
OIV-MA-AS2-01 OIV-MA-AS2-03B OIV-MA-AS313-26 OIV-MA-AS313-25 OIV-MA-AS311-10 + 2 more
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IPH Institut "Prüffeld für elektrische Hochleistungstechnik"

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DAkkS D-PL-12107-01-00 Berlin, DE
Railway braking — urban guided transport - Gleichspannung - Gleichstromwiderstand - Wechselstromstärke Messsysteme + 3 more
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IPP Analytics

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UKAS 7880 Bentalls, GB
Ethanol Digoxin Cortisol Glucose AFP + 3 more
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UKAS 33801 Chelmsford, GB
BS RHAEM LP 5 using Sysmex BS RHAEM LP 1 using thick film BS COAG LP 3 BS COAG PR 7 BS COAG PR 8 + 3 more
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ACCREDIA 02372 Aprilia, IT
IEC 15408-1 IEC 18045 IEC 18367 IEC 20543 IEC 20004
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IRCM - ISTITUTO RICERCA CONTROLLO MATERIALI

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ACCREDIA 01199 Solbiate Arno, IT
Tensile testing of metallic materials (I Charpy impact test (ISO 148-1) DIN EN ISO 8493 ASTM E 8 ISO 6506-1 + 3 more
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ACCREDIA 02155 Reggio Emilia, IT
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ACCREDIA 00514 Genova, IT
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COFRAC 1-7208 Nancy, FR
DIN EN 27888 DIN EN 13126-19 DIN EN ISO 10523 DIN EN ISO 16911-1 DIN EN 13284-1 + 3 more
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IRO GmbH Oldenburg Prüflabor

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DAkkS D-PL-11107-02-00 Oldenburg, DE
IL1B C3953T dbSNP rs1143634, IL1RA T2010 DIN EN 295-3 DIN 19523 DIN EN 14741 DIN EN 295-3 + 3 more
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IRTEC SRL ISTITUTO RICERCHE TECNOLOGICHE E COLLAUDI

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ACCREDIA 02151 Trezzo sull'Adda, IT
Tensile testing of metallic materials (I Charpy impact test (ISO 148-1) DIN EN ISO 17637 DIN EN ISO 7438 DIN EN ISO 4136 + 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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