Scope
EN 15302
Railway Wheelset Equivalent Conicity Measurement
This test method defines procedures for determining the equivalent conicity of railway wheelsets, a critical geometric parameter that affects vehicle stability, curving behavior, and wear characteristics. Equivalent conicity influences hunting oscillations, lateral forces, and noise generation during operation. The measurement is essential for railway manufacturers, maintainers, and operators to ensure safe and economical wheelset performance across different track geometries. Accreditation ensures consistent, reproducible measurements that support compliance with European interoperability standards and informed maintenance decisions.
What it measures
- Equivalent conicity value of wheelset profiles
- Wheel profile geometry and wear patterns
- Contact angle and friction coefficient relationships
- Stability margin and hunting potential
- Comparative conicity values for different operating conditions
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DIN EN 13715
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BS EN 13715
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NF EN 13715
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UNI EN 13715
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UNE EN 13715
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NEN EN 13715
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DIN EN 13296
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BS EN 13296
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NF EN 13296
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UNI EN 13296
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UNE EN 13296
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NEN EN 13296
1,399
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ÖNORM EN ISO 17637
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ASTM A 370
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Ramcare
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DC CURRENT
DC VOLTAGE
thermometer Pt100
ROTATIONAL SPEED
Generate
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Rhopoint Metrology
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(Steel and tungsten carbide)
LENGTH (cont’d)
pneumatic tyres (See Note 1)
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(HSG 264, 2012)
HSG 264 (2012) and Appx. 3 of
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OP11 based on HSG 248
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AM-01 based on BS 4401:Part 1:
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ISO 4931:1986 (withdrawn)
ISO 3759:1984 (withdrawn)
DIN EN 13759
DIN EN 12150-1
DIN EN ISO 15797
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IP 195*ASTM D1078
ASTM D847 by titration
ASTM D848
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based on BS 4401 Part 4:1970
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Method CBG-M-SOP-027 based on BS EN ISO
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BS EN BS EN 12952 Water-tube
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(HSG 248) – 2021
DI/AN/ME/025 based on HSG 248
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