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

3,715 Accredited labs

21 Countries

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Eckert & Ziegler Analytics

DAkkS D-K-19023-01-00 Atlanta, US

1,0 ∙ 10 20 Bq Referenzmagnetsysteme, 1,3 · 10 Measurement 1·10 -2 + 3 more

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Eckert & Ziegler Isotope Products

DAkkS D-K-19029-01-00 California, US

Location details | Activity Specific Activity E > 250 keV Beta emitting nuclides E avg < 100 keV + 3 more

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Jet-Care International

UKAS 1961 New Jersey 07927, US

ASTM D 1500 ASTM D 445 ASTM D 6304 ASTM D 5800 ASTM D664 + 3 more

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