EN 12082:2017/FprA1

Railway applications - Axleboxes - Performance testing

This European Standard specifies the principles and methods for a rig performance test of the system of axlebox rolling bearing(s), housing, seal(s) and grease. Test parameters and minimum performance requirements for vehicles in operation on main lines are specified. Different test parameters and performance requirements may be selected for vehicles in operation on other networks (e.g. urban rail). This standard is historically developed for outboard applications but can be used for vehicles with other bearing arrangements (e.g.: inboard application or single wheels).
It gives some possible examples where a "sequenced performance test" addresses the broad range of different service conditions within a specific application or vehicle platform into account.
It describes in detail the water tightness test and basic principles and minimum requirements for a field test.
This European Standard only applies to axleboxes equipped with rolling bearings and greases according to EN 12080 and EN 12081.

Bahnanwendungen - Radsatzlager - Prüfung des Leistungsvermögens

Applications ferroviaires - Boïtes d'essieux - Essais de performance

Železniške naprave - Ohišja ležajev kolesnih dvojic - Preskušanje delovanja - Dopolnilo A1

General Information

• Status: Not Published
• Publication Date: 03-Oct-2021
• Withdrawal Date: 02-Jan-2022
• ICS: 45.040 - Materials and components for railway engineering
• Technical Committee: CEN/TC 256 - Railway applications
• Drafting Committee: CEN/TC 256/SC 2/WG 12 - Roller bearings and Lubricants
• Current Stage: 5060 - Closure of Vote - Formal Approval
• Start Date: 01-Apr-2021
• Due Date: 26-Mar-2021
• Completion Date: 01-Apr-2021
• Directive: 2008/57/EC - Directive 2008/57/EC of the European Parliament and of the Council of 17 June 2008 on the interoperability of the rail system within the Community (Recast)
• Directive: 2016/797/EU - Directive (EU) 2016/797 of the European Parliament and of the Council of 11 May 2016 on the interoperability of the rail system within the European Union (Text with EEA relevance)
• Mandate: M/483 - Mandate for programming and standardisation addressed to the European standardisation bodies under directive 2008/57/EC in the field of the interoperability of the rail system within the European Union
• Ref Project: SIST EN 12082:2017/kFprA1:2021 - Railway applications - Axleboxes - Performance testing

Relations

• Merged Into: EN 12082:2017+A1:2021 - Railway applications - Axleboxes - Performance testing
• Effective Date: 21-Apr-2021
• Amends: EN 12082:2017 - Railway applications - Axleboxes - Performance testing
• Effective Date: 11-Apr-2018

Overview

The European Standard EN 12082:2017/FprA1 specifies the performance testing requirements for railway axleboxes. Developed by CEN under the Technical Committee CEN/TC 256, this standard outlines rigorous testing principles and methods for the system comprising axlebox rolling bearings, housing, seals, and grease. Its main focus is ensuring reliable performance of axleboxes on mainline railway vehicles, although it can be adapted for vehicles on other networks such as urban rail. Originally tailored for outboard bearing arrangements, EN 12082:2017/FprA1 is also applicable to inboard or single-wheel axlebox designs, providing flexibility across various railway vehicle configurations.

Key Topics

• Rig performance testing: The standard defines test parameters and minimum performance criteria for axlebox systems, incorporating temperature monitoring throughout the test to assess bearing and grease performance.

• Sequenced performance tests: It provides guidance on conducting sequenced tests that simulate a broad range of service conditions, reflecting different operational profiles and speed ranges inherent to specific vehicle platforms or applications.

• Water tightness testing: Detailed procedures for testing the water resistance of axleboxes ensure adequate protection of internal components from environmental conditions.

• Field testing principles: EN 12082:2017/FprA1 describes essential principles and minimum requirements for conducting performance evaluations in real-world conditions following successful laboratory tests.

• Grease sampling and analysis: The standard identifies critical grease sampling zones within the axlebox and specifies physico-chemical criteria to monitor grease condition during testing, enhancing maintenance strategies.

• Temperature criteria and sensor data analysis: It prescribes specific temperature limits and data evaluation methods to determine acceptance or failure based on thermal performance during testing cycles.

• Modification details: The 2019 draft amendment refines definitions, test procedures, acceptance criteria, and reporting requirements to ensure clarity and compliance with updated testing methodologies.

Applications

EN 12082:2017/FprA1 is essential for manufacturers, railway operators, and testing laboratories focusing on:

• Railway axlebox validation: Ensuring axleboxes meet stringent performance requirements to maintain safety and reliability on mainline railways and other networks.

• Component quality assurance: Verifying the integrity of rolling bearings, housing, seals, and lubricants integrated into axlebox assemblies.

• Lifecycle testing and maintenance planning: Using sequenced test data and grease condition monitoring to optimize maintenance schedules and extend service life.

• Compliance with EU directives: Supporting conformity with European Union regulations and safety mandates relevant to railway applications.

• Adapting testing for diverse bearing arrangements: Applying consistent performance criteria regardless of axlebox design variations such as outboard or inboard configurations.

Related Standards

• EN 12080:2017 – Rolling bearings for axleboxes: Specifications and requirements for bearing components used in axlebox assemblies.

• EN 12081:2017 – Lubricating greases for railway axleboxes: Criteria for grease selection and testing procedures.

• EU Directives on Railway Safety: EN 12082 aligns with essential EU requirements governing railway equipment interoperability and safety.

• CEN/TC 256 standards suite: EN 12082 forms part of a comprehensive framework of CEN standards covering railway materials and components, supporting interoperability and quality.

Summary

Adopting EN 12082:2017/FprA1 ensures robust, repeatable performance testing of railway axleboxes, addressing durability, thermal behavior, water tightness, and lubricant effectiveness. Implementing this standard provides railway industry stakeholders with confidence in axlebox reliability under diverse operating conditions, promoting safer and more efficient rail transport systems. Its integration with related standards for bearings and greases forms a critical foundation for comprehensive quality assurance and regulatory compliance in railway engineering.

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 12082:2017/oprA1:2019
01-april-2019
Železniške naprave - Ohišja ležajev kolesnih dvojic - Preskušanje delovanja -
Dopolnilo A1
Railway applications - Axleboxes - Performance testing
Bahnanwendungen - Radsatzlager - Prüfung des Leistungsvermögens
Applications ferroviaires - Boïtes d'essieux - Essais de performance
Ta slovenski standard je istoveten z: EN 12082:2017/prA1
ICS:
45.040 Materiali in deli za železniško Materials and components
tehniko for railway engineering
SIST EN 12082:2017/oprA1:2019 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN 12082:2017/oprA1:2019
SIST EN 12082:2017/oprA1:2019
DRAFT
EUROPEAN STANDARD
EN 12082:2017
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
February 2019
ICS 45.040
English Version
Railway applications - Axleboxes - Performance testing
Applications ferroviaires - Boïtes d'essieux - Essais de Bahnanwendungen - Radsatzlager - Prüfung des
performance Leistungsvermögens
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 256.

This draft amendment A1, if approved, will modify the European Standard EN 12082:2017. If this draft becomes an amendment,
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant national standard without any alteration.

This draft amendment 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, Serbia, 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: 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 12082:2017/prA1:2019 E
worldwide for CEN national Members.

SIST EN 12082:2017/oprA1:2019
EN 12082:2017/prA1:2019 (E)
Contents Page
European foreword . 3
1 Modification to Clause 2, Normative references . 4
2 Modifications to Clause 3, Terms and definitions . 4
3 Modifications to Clause 4, Symbols and abbreviations . 4
4 Modifications to subclause 7.1, Rig performance test – General . 4
5 Modifications to subclause 7.3.1, Pre-test . 4
6 Modifications to subclause 7.3.2, Performance test . 4
7 Modifications to subclause 7.4.1, Results obtained during test . 5
8 Modifications to subclause 7.5, Performance test report . 5
9 Modifications to subclause 8.1, Field test – General . 5
10 Modifications to Annex A.3, Grease sampling zones . 5
11 Modifications to Annex A.5.2, Conditions for sequenced tests . 6
12 Modifications to Annex A.6, Graphical presentation of test cycles . 6
13 Modifications to Annex A.7, Temperature criteria . 6
14 Modifications to Annex A.8.2, Physico-chemical criteria . 6
15 Modifications to Annex A.9.2, Preconditions for applicability of existing results . 6

SIST EN 12082:2017/oprA1:2019
EN 12082:2017/prA1:2019 (E)
European foreword
This document (EN 12082:2017/prA1:2019) has been prepared by Technical Committee CEN/TC 256
“Railway applications”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
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(s).
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of
EN 12082:2017.
SIST EN 12082:2017/oprA1:2019
EN 12082:2017/prA1:2019 (E)
1 Modification to Clause 2, Normative references
Replace the current reference EN 12081:2007+A1:2010 with:
“EN 12081:2017”.
2 Modifications to Clause 3, Terms and definitions
In 3.9.1, delete the “<” sign before the definition.
3 Modifications to Clause 4, Symbols and abbreviations
Replace the existing description of n w
...