Railway applications - Wheelsets and bogies - Wheels - Tread profile

This European Standard defines the tread profiles of wheels with a diameter greater than or equal to 330 mm used on vehicles running on European standard gauge track to fulfil interoperability requirements.  These profiles apply to new wheels, whether free-standing or assembled as wheelsets, as well as to wheels that require reprofiling during maintenance.

Bahnanwendungen - Radsätze und Drehgestelle - Räder - Radprofile

Die vorliegende Europäische Norm legt die Laufprofile für Räder mit einem Durchmesser größer oder gleich 330 mm fest, die für Ausrüstungen verwendet werden, die auf normalen europäischen Gleisen verkehren, um die Interoperabilität abzusichern. Diese Profile werden sowohl für neue Räder, als Einzelteile geliefert oder zu Radsätzen montiert, als auch für zu reprofilierende Räder im Rahmen der Instandhaltung angewendet.

Applications ferroviaires - Essieux montés et bogies - Roues - Profil de roulement

La présente Norme Européenne définit les profils de roulement des roues de diamètre supérieur ou égal à 330 mm utilisées pour des matériels circulant sur voie normale européenne et qui permettent d’assurer l’interopérabilité. Ces profils s’appliquent aux roues neuves livrées sous forme de roues seules ou calées sur essieux montés, ainsi qu’aux roues devant subir un reprofilage en cours de maintenance.

Železniške naprave - Kolesne dvojice in podstavni vozički - Kolesa - Profil tekalne površine

General Information

Status
Not Published
Current Stage
4098 - Decision to abandon - Enquiry
Due Date
29-Mar-2016
Completion Date
15-Apr-2016

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SLOVENSKI STANDARD
oSIST prEN 13715:2015
01-junij-2015

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Railway applications - Wheelsets and bogies - Wheels - Tread profile
Bahnanwendungen - Radsätze und Drehgestelle - Räder - Radprofile

Applications ferroviaires - Essieux montés et bogies - Roues - Profil de roulement

Ta slovenski standard je istoveten z: prEN 13715
ICS:
45.040 Materiali in deli za železniško Materials and components
tehniko for railway engineering
oSIST prEN 13715:2015 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 13715:2015
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oSIST prEN 13715:2015
EUROPEAN STANDARD
DRAFT
prEN 13715
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2015
ICS 45.040 Will supersede EN 13715:2006+A1:2010
English Version
Railway applications - Wheelsets and bogies - Wheels - Tread
profile

Applications ferroviaires - Essieux montés et bogies - Bahnanwendungen - Radsätze und Drehgestelle - Räder -

Roues - Profil de roulement Radprofile

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 256.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which

stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language

made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United

Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to

provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and

shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13715:2015 E

worldwide for CEN national Members.
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oSIST prEN 13715:2015
prEN 13715:2015 (E)
Contents
Page

Introduction .........................................................................................................................................................4

1 Scope ......................................................................................................................................................6

2 Normative references ............................................................................................................................6

3 Terms and definitions ...........................................................................................................................6

4 General ..........................................................................................................................................................6

5 Definition of the tread profile ........................................................................................................................7

6 Symbols and abbreviations ..........................................................................................................................8

7 Construction method ............................................................................................................................9

7.1 Definition of the axes .................................................................................................................................9

7.2 Base profile .................................................................................................................................................9

7.3 Profile construction ...............................................................................................................................9

7.3.1 Profile zone H2 – D1 (flange) ................................................................................................................9

7.3.2 Profile connection zone D1 – C1 ....................................................................................................... 10

7.3.3 Profile zone D1 – C1 –D0 for flange thicknesses 28.5 mm ≤ e ≤ 32.5 mm ................................... 11

7.3.4 Zone D0 – B1 (B1a or B1b) ................................................................................................................. 12

7.3.5 Reverse slope and chamfer ............................................................................................................... 12

8 Geometric characteristics .................................................................................................................. 13

8.1 R20,5 connecting radius .................................................................................................................... 13

8.2 RE and RI 12 mm connecting radii .................................................................................................... 13

8.3 Rfa connecting radius ........................................................................................................................ 13

8.4 R13 connecting radius ....................................................................................................................... 14

8.5 Wheel tread .......................................................................................................................................... 14

8.6 Reverse slope – Chamfer ................................................................................................................... 14

9 Profile designation.............................................................................................................................. 14

10 Reference equipment for verification of the wheel profile ............................................................. 14

Annex A (normative) Flange .......................................................................................................................... 15

A.1 Definition of the flange ....................................................................................................................... 15

A.2 Flange geometry ................................................................................................................................. 16

Annex B (normative) 1/40th profile ............................................................................................................... 17

B.1 Complete reference profile: construction with a 32.5 mm thick flange and 15 % reverse

slope ..................................................................................................................................................... 17

B.2 Profile construction: specific zones ................................................................................................. 17

Annex C (normative) S1002 profile ............................................................................................................... 19

C.1 Complete reference profile: construction with 32.5 mm thick flange and 6.7 % reverse

slope ..................................................................................................................................................... 19

C.2 Profile construction: specific zones ................................................................................................. 19

Annex D (normative) EPS profile .................................................................................................................. 23

D.1 Complete reference profile: construction with 32.5 mm thick flange and 10 % reverse

slope ..................................................................................................................................................... 23

D.2 Profile construction: specific zones ................................................................................................. 23

Annex ZA (informative) Relationship between this European Standard and the Essential

Requirements of EU Directive 2008/57/EC ....................................................................................... 26

Bibliography ..................................................................................................................................................... 29

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oSIST prEN 13715:2015
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Foreword

This document (prEN 13715:2015) has been prepared by Technical Committee CEN/TC 256 “Railway

applications”, the secretariat of which is held by DIN.
This is currently submitted for review.
This document is intended to replace EN 13715:2006+A1:2010
Introduction

This standard states requirements that are in accordance with the principles adopted by the

International Union of Railways.

It describes the rules, parameters and construction methods of the wheel tread profile;

It defines the geometry of the flange and reverse slope. The thicknesses and height of the flange are

determined by the railway undertaking or its representative in compliance with the normative

documents in force;

It defines the co-ordinates and geometry of the following three reference tread profiles of the wheels and their

reverse slope:
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 1/40 (reverse slope 15 %);

 S1002 (reverse slope 6.7 %, other value used 15 %) in conformity with UIC Leaflet 510-2;

 EPS (reverse slope 10 %) equivalent to profile P8 of the United Kingdom with a flange 30 mm thick.

These three reference profiles are defined in Annexes B, C and D and represent original profiles from the time

of their design, the flanges having been harmonised to a 32.5 mm flange thickness.

It defines the tolerances needed to achieve calibration control.
All the dimensions in this standard are given in millimetres.
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oSIST prEN 13715:2015
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1 Scope

This European Standard defines the tread profiles of wheels with a diameter greater than or equal to 330 mm

used on vehicles running on European standard gauge track to fulfil interoperability requirements. These

profiles apply to new wheels, whether free-standing or assembled as wheelsets, as well as to wheels that

require reprofiling during maintenance.
2 Normative references
None apply to this standard.
3 Terms and definitions

For the purposes of this document, the following terms and definitions shall apply.

3.1
Technical specification

Document describing the requirements pertaining to specific parameters in addition to the requirements of this

standard.
4 General

Given that this document describes three reference profiles used in Europe, any other profile that does not conform to this

standard must be defined in a technical specification.

NOTE It is preferred that the profile defined in a technical specification is agreed on between the railway

company and the infrastructure managing organisation.
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5 Definition of the tread profile
The tread profile is shown in Figure 1.
Key
The points marked with "*" relate respectively to the following profiles
B1 S1002
B1a 1/40th
B1b EPS
C1 S1002
C1a 1/40th
C1b EPS
See Table 1 – Symbols and abbreviations
Figure 1 — Wheel tread profile
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6 Symbols and abbreviations
Table 1 — Symbols and abbreviations
Z 1 Internal zone of flange (H2 – S)
Z 2 External zone of flange (S – D1)
Z 3 Connection zone, flange to wheel tread [D1 – C1(C1a, C1b)]
Z 4 Wheel tread zone [C1 (C1a, C1b) - B1 (B1a, B1b)]
Z 5 Zone between the wheel tread (reverse slope) and chamfer [B1 (B1a, B1b) – I]

a Position of the axis intersecting the tip of the flange relative to the internal face of the wheel

d Wheel diameter
e Flange thickness

De Difference between the reference value for flange thickness (32.5 mm) and the new value of "e"

h Flange height
Y Y axis
Z Z axis
y Abscissa according to "Y" axis for the specific point
z Ordinate according to the "Z" axis for the specific point
A1 Connection point of the reverse slope with the 5 mm x 5 mm chamfer
B1 (B1a, B1b) Connection point of the reverse slope with the wheel tread

C1 C1a, C1b) Starting point of the connection zone between the wheel tread and the flange zone

C11a, C11b, C12, Unique profile construction points
D1a, D1b, E1, F1,
G1, H1, T1

D0 Location of the wheel tread, 70 mm from its internal face. Origin of the co-ordinate axes

D1 Starting point of the flange
H2 Finishing point of the flange, on the internal face of the wheel
I Starting point of the profile on the external face of the wheel
L Rim nominal width, 135 mm or 140 mm
Rfa External flange radius, a function of the flange height
RE 12 mm radius, connection to the external face of the flange
RI 12 mm radius, connection to the internal face of the flange
REm Centre of radius RE
Rlm Centre of radius RI

R13 13 mm radius, connection between the internal face of the flange and the wheel tread

Hm Centre of 20.5 mm radius
Fm Centre of Rfa radius
Dm Centre of R 13 radius
Jm Centre of 100 mm radius (EPS) and of 36 mm radius (1/40 )
Jm1 Centre of 330 mm radius (EPS)
S Connection at the tip of the flange
AXB Connection axis at the tip of the flange
BDN Flange
CR Wheel tread plane
FEJ External face of the wheel
FIJ Internal face of the wheel
The profiles comprise:
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 two zones H2 – S and S – D1, with fixed geometry;

 a connection zone D1 – C1, unique to each reference profile, to make a tangential connection at point C1;

 a zone C1 – B1 (either B1a, or B1b) unique to each reference profile. The co-ordinates are given in

Annexes B, C and D for the three reference profiles including point D0;

 a zone B1 (either B1a or B1b) – A1 – I, comprising the reverse slope and chamfer, unique to each

reference profile. The reverse slope shall be in the range 6.7 % to 15 %.
7 Construction method
7.1 Definition of the axes

The Y axis is parallel to the axis of rotation of the wheel with the positive values towards the external face of

the wheel. The Z axis is perpendicular to the latter with the positive values towards the outside of the wheel.

Their origin is at point D0, situated 70 mm from the internal face of the wheel.
7.2 Base profile

The base profile is that obtained with a flange 32.5 mm thick and 28 mm high. All the others are developed

from this fundamental profile.
7.3 Profile construction
7.3.1 Profile zone H2 – D1 (flange)

The reference flange (dimensions, centres and radii) is given in Annex A for a flange thickness of 32.5 mm.

The different flange thicknesses are obtained by translating the zones S-D1, parallel to the Y axis, towards the

internal face of the wheel. Annex A gives all the co-ordinates for flange thicknesses between 28.5 mm and

32.5 mm.

After translation, the connection axis (AXB) at the tip of the flange (S) is at a distance, in mm, from the wheel

32,5− e
 
internal face of: a= 15− 
 
Figure 2 — Flange
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7.3.2 Profile connection zone D1 – C1

The characteristics of these connections specific to each profile are given in Annexes B, C and D.

The definitions of the connection zones are shown in Figures 3, 4 and 5.
Figure 3 — 1/40 connection zone
Figure 4 — S1002 connection zone
Figure 5 — EPS connection zone
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7.3.3 Profile zone D1 – C1 –D0 for flange thicknesses 28.5 mm ≤ e ≤ 32.5 mm
7.3.3.1 S1002 and 1/40 profiles

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 D0 for all flange thicknesses.

The connection between points D0 and T1 may be smoothed by a straight line.
Figure 6 — Extension of the wheel tread zone T1 – D0
Figure 7 — Connection T1 – D0
7.3.3.2 EPS profile

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 co-ordinates of which the are given in Table D.1 which defines the EPS

profile in Annex D (the centre of the 330 mm radius remains fixed).
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Figure 8 —EPS profile
7.3.4 Zone D0 – B1 (B1a or B1b)

The zone D0 – B1 (B1a or B1b), as appropriate to each profile, remains fixed for each type.

7.3.5 Reverse slope and chamfer

The point B1 of the S1002 profile at the beginning of the reverse slope after the wheel tread is always situated

at 102 mm, 158 mm from the internal face of the wheel. The positions of points B1a and B1b of the 1/40 and

EPS profiles relative to point B1 are shown below.
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Figure 9 — Reverse slope and chamfer

The reverse slope profile connects with the wheel tread at point B1 (S1002 profile), B1a (1/40 profile) and

B1b (EPS profile).
8 Geometric characteristics
8.1 R20,5 connecting radius
The co-ordinates of the centre Hm of the R20,5 radius are given in Annex A.
8.2 RE and RI 12 mm connecting radii

The co-ordinates of the REm and RIm centres of the RE and RI radii, are defined relative to DO as follows:

zREm and zRIm = (flange height – 12) mm.
These co-ordinates are given in Annex A.
8.3 Rfa connecting radius

The values of the Rfa connecting radius as a function of the flange height are given in Table 2.

Table 2 — Rfa connecting radius
Minimum flange height (h) Radius (Rfa)
28 20
30 21.5
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32 23
8.4 R13 connecting radius
The co-ordinates of the centre Dm of the R13 radius are given in Annex A.
8.5 Wheel tread
This is defined in Annexes B, C, and D for each of the profile types.
8.6 Reverse slope – Chamfer

The reverse slope shall have a uniform gradient between 6.7 % and 15 % and shall terminate with a

5 mm x 5 mm chamfer.
9 Profile designation

The profile is designated as follows: "EN 13715 – profile type/flange height/flange thickness/value of the

reverse slope used".
The profile type is the reference profile given in Annex B, C or D.
Examples:

 EN 13715 – 1/40/h28/e30.5/15% (profile derived from the 1/40 reference profile, conforming to

EN 13715, with a flange 28 mm high, 30.5 mm thick and a 15 % reverse slope);

 EN 13715 – S 1002/h30/e30/15% (profile derived from the S 1002 reference profile, conforming to

EN 13715, with a flange 30 mm high, 30 mm thick and a 15 % reverse slope);

 EN 13715 – EPS/h32/e28,5/10% (profile derived from the EPS reference profile, conforming to

EN 13715, with a flange 32 mm high, 28.5 mm thick and a 10 % reverse slope).
10 Reference equipment for verification of the wheel profile
The wheel profile must be inspected by means of a standard gauge.

The wheel profile of the standard gauge must be inspected by means of equipment metrologically associated

with a national metrology agency

The wheel profile of the standard gauge shall be made with a tolerance of ± 0.025 mm relative to the

theoretical profile. A working gauge shall be made with a tolerance of ≤ 0.0
...

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