Scope
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
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DIN EN 13262
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BS EN 13262
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NF EN 13262
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UNI EN 13262
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UNE EN 13262
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NEN EN 13262
1,632
Accredited labs
19
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The Auditing Company
Active
#EN ISO 5164:14
# EN 116-97
# ISO 13736
NEN 4400-1
#ISO 6618
TÃœV NORD Nederland
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DIN EN ISO 17232
DIN EN 14960
NEN 3140
#EN ISO 5164:14
EN 1069
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NF EN 10002-1 –1990
DIN EN 115-1:
IEC 61993-2
ASTM D5199-12
EN 1991-1-1
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