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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DIN EN 12504-1 DIN EN 14629 DIN EN 14630 (HSG 248) – 2021 ASTM C876-22b + 3 more
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UKAS 0227 Poole, GB
LENGTH Plain gap gauges (parallel) ANGLE Depth Plain plug gauges (taper) + 3 more
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MATtest

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DIN EN 12350-1 DIN EN 12390-1 DIN EN 12390-2 DIN EN 12390-3 DIN EN 12504-1 + 3 more
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UKAS 0228 Wimborne, GB
(enzephalomyopathische Form LENGTH (continued) ANCILLARY MEASUREMENTS Plain plug gauges (parallel) Micrometers + 3 more
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ISO 11290-1 ISO 11290-2 ISO 15213-2 ISO 6888-1 ISO 13720 + 3 more
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UKAS 0199 Galdames Place, GB
(HSG 264, 2012) Appendix 5 of HSG 227 (2004) Appendix 3 of HSG 227 (2004) (HSG 248) – 2021 (PCM) based on HSG 248 + 1 more
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Full blood counts (FBC) in human whole b Full blood count (FBC) in human whole bl Full blood count (FBC) in human whole bl Haemoglobin (HGB) | T.S111 Red Cell Count (RBC) | T.S112 + 3 more
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CMV Helicobacter pylori Mycobacterium leprae Nuclear protein in lung and thyroid | Th Dendritic cells: cortical thymocytes: | + 3 more
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Hepatitis-A IgM Hepatitis C MRSA-Screening Serology: | Roche Cobas Pure Analyser: Detection of : | Manual Indirect + 3 more
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UKAS 8342 Maidstone, GB
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Ethanol Cortisol Glucose CA 125 CEA + 3 more
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Ethanol Cortisol Glucose CA 125 CEA + 3 more
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UKAS 9865 Manchester, GB
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Bence-Jones Protein Total-IgE Immunotyping Rheumatoid Factor Beta-2-Microglobulin + 3 more
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UKAS 10196 Wythenshawe Hospital, GB
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UKAS 8650 Manchester, GB
D-Dimer Fibrinogen MCH MCHC MCV + 3 more
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UKAS 8024 Wythenshawe, GB
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UKAS 9322 Liverpool, GB
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UKAS 8393 Manchester, GB
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UKAS 28563 Driffield, GB
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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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