SIST ISO 9608:1997
(Main)V-belts -- Uniformity of belts -- Test method for determination of centre distance variation
General Information
- Abstract
Cancels and replaces the first edition (1988). Specifies a test method for determining the centre distance variation of V-belt drives as a criterion for the uniformity of V-belts.
- Status
- Published
- Publication Date
- 30-Nov-1997
- Technical Committee
- DTN - Lift and transport appliances
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Dec-1997
- Due Date
- 01-Dec-1997
- Completion Date
- 01-Dec-1997
Buy Documents
ISO 9608:1994 - V-belts — Uniformity of belts — Test method for determination of centre distance variation Released:8/11/1994
ISO 9608:1994 - Courroies trapézoidales — Uniformité des courroies — Méthode d'essai permettant de déterminer les variations d'entraxe Released:8/11/1994
ISO 9608:1994 - Courroies trapézoidales — Uniformité des courroies — Méthode d'essai permettant de déterminer les variations d'entraxe Released:8/11/1994
Overview
SIST ISO 9608:1997 - "V-belts - Uniformity of belts - Test method for determination of centre distance variation" is an international standard published by SIST, based on ISO 9608:1994. This standard defines a uniform test method for evaluating the uniformity of V-belts through the measurement of centre distance variation. Its adoption helps ensure reliable performance in V-belt-driven systems by establishing a criterion for assessing V-belt uniformity.
V-belts are widely used for power transmission in industrial, automotive, and agricultural applications. Variations in belt geometry can introduce irregularities, leading to fluctuating force and instability in V-belt drives. By measuring the centre distance variation, manufacturers and quality assurance teams can detect and address inconsistencies that may affect system operation.
Key Topics
- V-belt Uniformity Assessment: Outlines a repeatable method for assessing the uniformity of V-belts, focusing on the centre distance variation as an important performance metric.
- Test Equipment: Specifies the use of a standardized measuring fixture with two grooved pulleys of identical dimensions, one of which is movable via a specified force.
- Measurement Principle: Details the procedure for seating the V-belt, applying force, rotating the system, and recording the maximum and minimum centre distances through one complete revolution.
- Data Calculation: The centre distance variation (denoted as AE) is calculated as the difference between the maximum and minimum centre distances measured.
- Reference to Related Specifications: Informs users that further details for pulley measurements and forces relating to different V-belt types are available in associated international standards.
- Repeatable Results: Ensures tests are carried out under standardized conditions for consistent and comparable outcomes.
Applications
- Manufacturing Quality Control: Used by V-belt manufacturers to check and ensure belt uniformity before distribution, thereby reducing product failures and improving customer satisfaction.
- Industrial Maintenance: Assists maintenance teams in diagnosing issues related to V-belt drive stability, leading to informed maintenance and replacement decisions, which help optimize equipment operation and reduce downtime.
- Product Development: Supports engineers and researchers when designing new V-belt profiles or materials by providing a clear, standardized method to test belt uniformity and performance.
- Conformance Testing: Enables easy verification of V-belt conformity to international requirements, essential for export, safety certification, and regulatory compliance.
Related Standards
To comprehensively assess and apply the principles in SIST ISO 9608:1997, the following related standards should be consulted:
- ISO 1604: Belt drives - Endless wide V-belts for industrial speed-changers and groove profiles for corresponding pulleys.
- ISO 2790: Belt drives - Narrow V-belts for the automotive industry and corresponding pulleys - Dimensions.
- ISO 3410: Agricultural machinery - Endless variable-speed V-belts and groove sections of corresponding pulleys.
- ISO 4184: Belt drives - Classical and narrow V-belts - Lengths in datum system.
- ISO 8419: Belt drives - Narrow joined V-belts - Lengths in effective system.
Conclusion
Adopting SIST ISO 9608:1997 ensures reliable, repeatable testing of V-belt uniformity, minimizing performance issues and supporting international quality standards for belt-driven power transmission systems. Standardized methodology enhances product quality, boosts end-user confidence, and provides a foundation for certification and regulatory documentation in the field of V-belt drive technology.
Relations
- Effective Date
- 12-May-2008
Buy Documents
ISO 9608:1994 - V-belts — Uniformity of belts — Test method for determination of centre distance variation Released:8/11/1994
ISO 9608:1994 - Courroies trapézoidales — Uniformité des courroies — Méthode d'essai permettant de déterminer les variations d'entraxe Released:8/11/1994
ISO 9608:1994 - Courroies trapézoidales — Uniformité des courroies — Méthode d'essai permettant de déterminer les variations d'entraxe Released:8/11/1994
Frequently Asked Questions
SIST ISO 9608:1997 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "V-belts -- Uniformity of belts -- Test method for determination of centre distance variation". This standard covers: Cancels and replaces the first edition (1988). Specifies a test method for determining the centre distance variation of V-belt drives as a criterion for the uniformity of V-belts.
Cancels and replaces the first edition (1988). Specifies a test method for determining the centre distance variation of V-belt drives as a criterion for the uniformity of V-belts.
SIST ISO 9608:1997 is classified under the following ICS (International Classification for Standards) categories: 21.220.10 - Belt drives and their components. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST ISO 9608:1997 has the following relationships with other standards: It is inter standard links to ISO 9608:1988. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST ISO 9608:1997 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-1997
Jermenski pogoni - Klinasti jermeni - Enakomernost jermenov - Preskusna metoda
za ugotavljanje odstopanja medosnega razmika
V-belts -- Uniformity of belts -- Test method for determination of centre distance variation
Courroies trapézoïdales -- Uniformité des courroies -- Méthode d'essai permettant de
déterminer les variations d'entraxe
Ta slovenski standard je istoveten z: ISO 9608:1994
ICS:
21.220.10 Jermenski pogoni in njihovi Belt drives and their
deli components
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
INTERNATIONAL
STANDARD
Second edition
1994-08-l 5
V-belts - Uniformity of belts - Test
method for determination of centre
distance variation
Courroies trap&zoidales - Uniformit des courroies - M&hode d’essai
permettant de determiner les variations d’entraxe
Reference number
IS0 9608:1994(E)
IS0 9608: 1994(E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work
of preparing International Standards is normally carried out through IS0
technical committees. Each member body interested in a subject for
which a technical committee has been established has the right to be
represented on that committee. International organizations, governmental
and non-governmental, in liaison with ISO, also take part in the work. IS0
collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard IS0 9608 was prepared by Technical Committee
lSO/TC 41, Pulleys and belts (including veebelts), Subcommittee SC 1,
Veebelts and grooved pulleys.
This second edition cancels and replaces the first edition
(I SO 9608: 1988), which has been technically revised. In particular, the
values for the centre distance variations in relation to the belt top width
have been deleted.
Annex A of this International Standard is for information only.
0 IS0 1994
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland
SIS
...
INTERNATIONAL
STANDARD
Second edition
1994-08-l 5
V-belts - Uniformity of belts - Test
method for determination of centre
distance variation
Courroies trap&zoidales - Uniformit des courroies - M&hode d’essai
permettant de determiner les variations d’entraxe
Reference number
IS0 9608:1994(E)
IS0 9608: 1994(E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work
of preparing International Standards is normally carried out through IS0
technical committees. Each member body interested in a subject for
which a technical committee has been established has the right to be
represented on that committee. International organizations, governmental
and non-governmental, in liaison with ISO, also take part in the work. IS0
collaborates closely with the International Electrotechnical Commission
(IEC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard IS0 9608 was prepared by Technical Committee
lSO/TC 41, Pulleys and belts (including veebelts), Subcommittee SC 1,
Veebelts and grooved pulleys.
This second edition cancels and replaces the first edition
(I SO 9608: 1988), which has been technically revised. In particular, the
values for the centre distance variations in relation to the belt top width
have been deleted.
Annex A of this International Standard is for information only.
0 IS0 1994
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronic or mechanical, including photocopying and
microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland
Introduction
An irregular running of V-belt drives can arise from non-uniformities in the
V-belt sections because force variations induced by the non-uniformities
add to the initial force at constant centre distance.
When testing the V-belt length under constant measuring force, these
force variations appear as centre distance variations.
This page intentionally left blank
INTERNATIONAL STANDARD 0 IS0 IS0 9608:1
...
NORME
INTERNATIONALE
Deuxième édition
1994-08-I 5
Courroies trapézoïdales - Uniformité des
- Méthode d’essai permettant
courroies
de déterminer les variations d’entraxe
- Uniformity of belts - Test method for determination of centre
V-belts
distance variation
Numéro de référence
ISO 9608: 1994(F)
ISO 9608: 1994(F)
Avant-propos
L’ISO (Organisation internationale de normalisation) est une fedération
mondiale d’organismes nationaux de normalisation (comités membres de
I’ISO). L’élaboration des Normes internationales est en général confiée aux
comités techniques de I’ISO. Chaque comité membre intéressé par une
étude a le droit de faire partie du comite technique créé a cet effet. Les
organisations internationales, gouvernementales et non gouvernemen-
tales, en liaison avec I’ISO participent également aux travaux. L’ISO colla-
bore étroitement avec la Commission électrotechnique internationale (CEI)
en ce qui concerne la normalisation électrotechnique.
Les projets de Normes internationales adoptes par les comités techniques
sont soumis aux comités membres pour vote. Leur publication comme
Normes internationales requiert l’approbation de 75 % au moins des co-
mites membres votants.
La Norme internationale ISO 9608 a éte élaboree par le comité technique
lSO/rC 41, Poulies et courroies (y compris les courroies trapézoïdales),
sous-comité SC 1, Courroies trapézoïdales et poulies à gorges.
Cette deuxième edition annule et remplace la première édition
(ISO 9608:1988), dont elle constitue une révision technique. En particulier,
les valeurs de variation d’entraxe selon la largeur au sommet de la courroie
ont éte supprimées.
L’annexe A de la présente Norme internationale est donnée uniquement
a titre d’information.
0 ISO 1994
Droits de reproduction réserhs. Sauf prescription différente, aucune partie de cette publi-
cation ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun pro-
cédé, électronique ou mécanique, y compris la photocopie et les microfilms, sans l’accord
écrit de l’éditeur.
Organisation internationale de normalisation
Case Postale 56 l CH-1 211 Genhe 20 l Suisse
Imprimé en Suisse
ii
CQ ISO
ISO 9608: 1994(F)
Introduction
La non-uniformité du profil des courroies trapézoïdales, du fait des va-
riations de force qu’elle engendre, et qui viennent s’ajouter à la force de
tension initiale de la courroie, peut provoquer un fonctionnement irrégulier
des transmissions par courroies trapézoïdales à entraxe constant.
Lors du contrôle de la longueur d’une courroie trapézoïdale sous une force
de tension constante, ces variations de force sont mises en évidence par
les variations d’entraxe de la courroie.
. . .
III
Page blanche
NORME INTERNATIONALE 0 60 ISO 9608: 1994(F)
Courroies trapézoïdales - Uniformit
...
IS0
NORME
I N T E R NAT I O NA LE
Deuxième Bdition
1994-08-1 5
Courroies trapézoïdales - Uniformité des
- Méthode d'essai permettant
courroies
de déterminer les variations d'entraxe
V-belts - Uniformity of belts - Test method for determination of centre
distance variation
NumBro de reference
IS0 9608:1994(F)
IS0 9608:1994(F)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une federation
mondiale d'organismes nationaux de normalisation (cornites membres de
I'ISO). L'elaboration des Normes internationales est en general confiee aux
comites techniques de I'ISO. Chaque comite membre interesse par une
etude a le droit de faire partie du comite technique cr66 B cet effet. Les
organisations internationales, gouvernementales et non gouvernemen-
tales, en liaison avec I'ISO participent dgalement aux travaux. L'ISO colla-
bore étroitement avec la Commission Blectrotechnique internationale (CEI)
en ce qui concerne la normalisation electrotechnique.
Les projets de Normes internationales adoptes par les comites techniques
sont soumis aux cornites membres pour vote. Leur publication comme
Normes internationales requiert l'approbation de 75 YO au moins des co-
mités membres votants.
La Norme internationale IS0 9608 a 6th blaboree par le comite technique
lSO/TC 41, Poulies et courroies (y compris les courroies trapdzoïdales),
sous-comite SC 1, Courroies trapdzoïdales et poulies 4 gorges.
Cette deuxieme edition annule et remplace la premiere edition
(IS0 9608:1988), dont elle constitue une revision technique. En particulier,
les valeurs de variation d'entraxe selon la largeur au sommet de la courroie
ont 6tB supprimees.
L'annexe A de la presente Norme internationale est donnee uniquement
B titre d'information.
8 IS0 1994
Droits de reproduction rBservBs. Sauf prescription diffbrente, aucune partie de cette publi-
cation ne peut &re reproduite ni utilisBe sous quelque forme que ce soit et par aucun pro-
cBdB, Blectronique ou mBcanique, y compris la photocopie et les microfilms, sans l'accord
écrit de I'Bditeur.
Organisation internationale de normalisation
Case Postale 56 CH-1 21 1 Genhve 20 Suisse
ImDrimB en Suisse
ii
I
0 IS0
IS0 9608: 1994( F)
I n t rod u ct ion
La non-uniformité du profil des courroies trapezoïdales, du fait des va-
riations de force qu'elle engendre, et qui viennent s'ajouter h la force de
la courroie, peut provoquer un fonctionnement irrégulier
tension initiale de
des transmissions par courroies trapezo'idales h entraxe constant.
Lors du contrôle de la longueur d'une courroie trapézoïdale sous une force
de tension constante, ces variations de force sont mises en évidence par
les variations d'entraxe de la courroie.
...
NORME INTERNATIONALE Q IS0
IS0 9608:1994(F)
Courroies trapézoïdales - Uniformité des
...















