Belt drives — V-ribbed belts for the automotive industry — Fatigue test

This document specifies a dynamic test method for the quality control of V-ribbed belts (PK profile) which are used predominantly for accessory drive applications in the automotive industry. The dimensional characteristics of the belts and of corresponding pulleys are the subject of ISO 9981.

Transmissions par courroies — Courroies striées pour la construction automobile — Essai de fatigue

General Information

Status
Published
Publication Date
01-Nov-2023
Technical Committee
Drafting Committee
Current Stage
6060 - International Standard published
Start Date
02-Nov-2023
Due Date
15-Nov-2023
Completion Date
02-Nov-2023
Ref Project

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Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 11749
Third edition
2023-11
Belt drives — V-ribbed belts for the
automotive industry — Fatigue test
Transmissions par courroies — Courroies striées pour la construction
automobile — Essai de fatigue
Reference number
ISO 11749:2023(E)
© ISO 2023

---------------------- Page: 1 ----------------------
ISO 11749:2023(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2023 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 11749:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 1
5 Principle . 2
6 Apparatus . 7
7 Test room conditions . .9
8 Test method .10
8.1 Test conditions . 10
8.1.1 Test with fixed belt tensioning force . 10
8.1.2 Test with constant belt tensioning force . 10
8.2 Procedure . 11
8.2.1 Preparation . 11
8.2.2 Test . . . 11
8.2.3 Retensioning .12
9 Test report .12
Bibliography .14
iii
© ISO 2023 – All rights reserved

---------------------- Page: 3 ---
...

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 11749
ISO/TC 41/SC 1
Belt drives — V-ribbed belts for the
Secretariat: AFNOR
automotive industry — Fatigue test
Voting begins on:
2023-08-03
Transmissions par courroies — Courroies striées pour la construction
automobile — Essai de fatigue
Voting terminates on:
2023-09-28
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 SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 11749:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 1 ----------------------
ISO/FDIS 11749:2023(E)
FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 11749
ISO/TC 41/SC 1
Belt drives — V-ribbed belts for the
Secretariat: AFNOR
automotive industry — Fatigue test
Voting begins on:
Transmissions par courroies — Courroies striées pour la construction
automobile — Essai de fatigue
Voting terminates on:
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: +41 22 749 01 11
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: copyright@iso.org
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/FDIS 11749:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
  © ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 2 ----------------------
ISO/FDIS 11749:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 1
5 Principle . 2
6 Apparatus . 7
7 Test room conditions . .9
8 Test method .10
8.1 Test conditions . 10
8.1.1 Test with fixed belt tensioning force . 10
8.1.2 Test with constant belt tensioning force .
...

2023-06-16
ISO/FDIS 11749:2023(E)
TC /SC ISO/TC 41/SC 1
Secretariat: AFNOR

---------------------- Page: 1 ----------------------
COPYRIGHT PROTECTED DOCUMENT
Date: 2023-07-20
Belt drives — V-ribbed belts for the automotive industry —
Fatigue test
Transmissions par courroies — Courroies striées pour la construction automobile — Essai de fatigue
FDIS stage

---------------------- Page: 2 ----------------------
ISO/FDIS 11749:2023(E)
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this
publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical,
including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can
be requested from either ISO at the address below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. Phone: + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail: copyright@iso.org
Website: www.iso.org
Published in Switzerland
© ISO 2023 – All rights reserved iii
© ISO 2023 – All rights reserved
iii

---------------------- Page: 3 ----------------------
ISO/FDIS 11749:2023(E)
Contents
Foreword . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 1
5 Principle . 2
6 Apparatus . 14
7 Test room conditions . 16
8 Test method . 17
8.1 Test conditions . 17
8.1.1 Test with fixed belt tensioning force . 17
8.1.2 Test with constant belt tensioning force . 17
8.2 Procedure . 18
8.2.1 Preparation . 18
8.2.2 Test . 19
8.2.3 Retensioning . 19
9 Test report . 19
Bibliography . 21

iv
© ISO 2023 – All rights reserved
iv
 © ISO 2023 – All rights reserved

---------------------- Page: 4 ----------------------
ISO/FDIS 11749:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is
...

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