EN 14535-2:2019

SLOVENSKI STANDARD
01-maj-2019
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SIST EN 14535-2:2011
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Railway applications - Brake discs for railway rolling stock - Part 2: Brake discs mounted
onto the wheel, dimensions and quality requirements
Bahnanwendungen - Bremsscheiben für Schienenfahrzeuge - Teil 2: Bremsscheiben, die
an einem Rad befestigt werden, Abmessungen und Qualitätsanforderungen
Applications ferroviaires - Disques de frein pour matériel roulant ferroviaire - Partie 2 :
Disques de frein montés sur la roue, dimensions et exigences de qualité
Ta slovenski standard je istoveten z: EN 14535-2:2019
ICS:
45.040 Materiali in deli za železniško Materials and components
tehniko for railway engineering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 14535-2
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2019
EUROPÄISCHE NORM
ICS 45.060.01 Supersedes EN 14535-2:2011
English Version
Railway applications - Brake discs for railway rolling stock
- Part 2: Brake discs mounted onto the wheel, dimensions
and quality requirements
Applications ferroviaires - Disques de frein pour Bahnanwendungen - Bremsscheiben für
matériel roulant ferroviaire - Partie 2 : Disques de frein Schienenfahrzeuge - Teil 2: Bremsscheiben, die an
montés sur la roue, dimensions et exigences de qualité einem Rad befestigt werden, Abmessungen und
Qualitätsanforderungen
This European Standard was approved by CEN on 14 October 2018.

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. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14535-2:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Symbols and abbreviations . 6
5 Requirements . 7
5.1 General . 7
5.2 Materials, design and manufacture . 7
5.3 Dimensions . 8
5.3.1 Brake disc. 8
5.3.2 Characteristics of dimensions and areas for the fastening . 9
5.3.3 Indication of disc wear limits . 11
5.3.4 Finishing . 12
5.3.5 Balance . 12
5.3.6 Dimensional tolerances . 12
5.4 Installation . 13
6 Test methods . 13
6.1 Type tests . 13
6.2 Application test . 13
7 Quality approval . 13
7.1 Verification . 13
7.2 Documentation . 14
7.3 Traceability . 14
7.4 Records . 14
8 Designation. 14
9 Marking and packaging . 16
9.1 Marking . 16
9.2 Packing and protection . 16
Annex A (informative) Further tests . 17
A.1 General . 17
A.2 Application test . 17
A.2.1 General . 17
A.2.2 Bench tests . 17
A.2.3 In service tests: validation of the capability for service use . 17
Annex ZA (informative) Relationship between this European Standard and the essential
requirements of EU Directive 2008/57/EC aimed to be covered . 18
Bibliography . 20

European foreword
This document (EN 14535-2:2019) has been prepared by Technical Committee CEN/TC 256 “Railway
applications”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2019, and conflicting national standards
shall be withdrawn at the latest by September 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 14535-2:2011.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive 2008/57/EC.
For relationship with EU Directive 2008/57/EC, see informative Annex ZA, which is an integral part of
this document.
Compared to the previous edition, the following changes have been made:
a) the standard’s scope has been modified;
b) normative references have been updated;
c) terms and definitions have been revised;
d) requirements on materials, design, dimensions and installation have been revised;
e) requirements on testing have been revised;
f) requirements on designation and markings have been revised;
g) Annexes have been revised.
The EN 14535 series, Railway applications - Brake discs for railway rolling stock, consists of the
following parts:
— Part 1: Brake discs pressed or shrunk onto the axle or drive shaft, dimensions and quality
requirements;
— Part 2: Brake discs mounted onto the wheel, dimensions and quality requirements;
— Part 3: Brake discs, performance of the disc and the friction couple, classification.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Introduction
The requirements given in this document cannot be written in sufficient detail to ensure good
workmanship or proper construction. Each manufacturer is therefore responsible for taking every
necessary step to make sure that the quality of design, workmanship and construction is such as to
ensure accordance with good engineering practice.
1 Scope
This document specifies requirements for the design and dimensions of the brake disc.
This document applies to brake discs mounted onto the wheel, including the wheel web or wheel hub of
railway rolling stock.
This document applies to discs having one or more disc brake rings, each having two axially separated
friction faces.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 13260, Railway applications — Wheelsets and bogies — Wheelsets — Product requirements
EN 13261, Railway applications — Wheelsets and bogies — Axles — Product requirements
EN 13262, Railway applications — Wheelsets and bogies — Wheels — Product requirements
EN 14535-3, Railway applications — Brake discs for railway rolling stock — Part 3: Brake discs,
performance of the disc and the friction couple, classification
EN 14478, Railway applications – Braking - Generic vocabulary
EN ISO 4287, Geometrical product specifications (GPS) — Surface texture: Profile method — Terms,
definitions and surface texture parameters (ISO 4287)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 14478 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
brake disc
arrangement of two brake rings having co-planar, annular friction faces to which brake pads are applied
in order to develop a braking torque
3.2
friction face
surface of a disc that provides the friction interface for transferring the brake force
3.3
brake ring
portion of the disc having the friction face
Note 1 to entry: Brake rings can consist of one or more sectors and can have continuous or non-continuous
friction faces.
3.4
fastening area
portion of the disc having means for the fastening on the wheel
Note 1 to entry: The fastening area may be constructed integral with the brake ring or connected to it by a
separate linking arrang
...