BS EN 13715:2020 pdf free.Railway applications一- Wheelsets and bogies – Wheels – Tread profile.
BS EN 13715 This document defines the tread profiles of wheels with a diameter equal or greater than 330 mm used on rolling stock submitted to the Directive 2016/797/EU. These profiles apply to new wheels, whether free-standing or assembled as wheelsets, as well as to wheels that require reprofiling during maintenance.There are no normative references in this document.
For the purposes of this document, the following terms and definitions apply.ISO and IEC maintain terminological databases for use in standardization at the following addresses:●ISO Online browsing platform: available at https://www.iso.org/ obp/ui IEC Electropedia: available at http://www.electropedia.org/ technical specification document describing the requirements pertaining to specific parameters in addition to the requirements of this document  Given that this document describes three reference profiles used in Europe, any other profile that does not conform to this document shall be defined in a technical specification. NOTE The profile is defined in the technical specification, usually agreed on between the railway undertaking and the infrastructure manager.The tread profile is shown in Figure 1.For flange thicknesses greater than 28,5 mm, but less than 32,5 mm, the profiles are obtained by translating the zones D1 – C1 (connection zone) and C1 – T1 along the Y-axis towards the internal face of the wheel, by an amount equal to the reduction [de) in thickness of the flange. The position of the point T1 is defined relative to the reference point DO for all flange thicknesses. The connection between points DO and T1 may be smoothed by a straight line.For the flange thickness values greater than 28,5 mm and less than 32,5 mm, the profile shape is obtained by changing a curve in zone D1 – C1, the coordinates of which are given in Table D.1 which defines the EPS profile in Annex D (the centre of the 330 mm radius remains fixed).The wheel profile shall be inspected by means of a reference gauge.The wheel profile of the standard gauge shall be inspected by means of equipment metrologically associated with a national metrology body.The wheel profile of the standard gauge shall be made with a tolerance of土0,025 mm relative to the
theoretical profile. A working gauge shall be made with a tolerance of≤0,06 mm relative to the wheel profile of the standard gauge.Any other methods of verification, to an equivalent level, shall be documented in the technical specifications.BS EN 13715 pdf download.