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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21 Countries

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ISO 13320 BS EN ISO 3923-1 ASTM E1019-24 ASTM B212-21 ASTM B527-24 + 3 more
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Charpy impact test (ISO 148-1) Salt spray / neutral salt fog test (ISO 1) In den CMC sind die erweiterten Messu elektronische Waagen Innen- und Tiefenmaße + 3 more
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DIN EN 12143 DIN EN 61482-2 DIN EN 15959 ISO 660 DIN EN 15475 + 3 more
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DIN EN ISO 13934-1 DIN EN 13759 DIN EN ISO 4920 DIN EN ISO 9237 DIN EN ISO 12945-1 + 3 more
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ISO 9231 ISO 660 ISO 5534 ISO 17678 ISO 23319 + 3 more
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ISO 1443 ISO 937 DIN EN 61482-2 ISO 9231 DIN EN 15959 + 3 more
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ETSI EN 319 401 ETSI EN 319 411-1 ETSI EN 319 411-2 ETSI EN 319 412
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ACCREDIA 00366 Firenze, IT
DIN EN ISO 13934-1 DIN EN 13759 DIN EN ISO 1421 DIN EN ISO 4674-1 DIN EN ISO 9237 + 3 more
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DIN EN 16168 DIN EN ISO 10390 DIN EN 13037 DIN EN 13038 DIN EN 13039 + 3 more
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DAkkS D-PL-18566-01-00 Limburg an der Lahn, DE
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DAkkS D-K-15096-01-00 Neuss, DE
Railway maintenance — track geometry (EN DIN EN ISO 3650:1999 − Längenmessgeräte > 300 mm Bügelmessschrauben 0 mm + 3 more
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DAkkS D-PL-12005-01-01 Itzehoe, DE
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DAkkS D-K-11292-01-00 Buchen Odenwald, DE
Railway brake handbooks (UIC 547) 1) In den CMC sind die erweiterten Messu Temperatur 50 °C
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UKAS 23082 London, GB
Vision Science | ISCEV Standard EOG Espi Vision Science | ISCEV Standard test ERG Vision Science | Extended ERG tests [S-c Vision Science | (PhNR)] Vision Science | ISCEV Standard pattern + 3 more
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UKAS 8609 London, GB
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UKAS 21806 Stevenage, GB
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DAkkS D-PL-20008-02-02 Hannover, DE
DIN 19682-1 DIN 19682-2 DIN EN ISO 14688-2 DIN 52161-1 DIN EN ISO 10523 (C 5) + 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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