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.
Wheelset and bogie manufacturingRolling stock design and engineeringTrack maintenance and infrastructure managementVehicle certification and type approvalRailway research and development
Related Standards
UIC 510-2Railway vehicles — Running gear — Wheels and wheelsets — Part 2: Definitions and gauges
EN 13262Railway applications — Wheelsets and bogies — Safety requirements for wheels
UIC 644Railway — behaviour of coach bogies — Y25 bogie type