ISO 255:2023
(Main)Belt drives — Pulleys for V-belts (system based on datum width) — Geometrical inspection of grooves
Belt drives — Pulleys for V-belts (system based on datum width) — Geometrical inspection of grooves
This document specifies the methods of checking the regularity of the grooves and pulleys for V-belts specified in the system based on datum width. The grooved pulleys may be designed for use with classical or narrow V-belts. Inspection parameters and tolerances of grooved pulleys are covered by appropriate International Standards.
Transmissions par courroies — Poulies à gorges pour courroies trapézoïdales (système basé sur la largeur de référence) — Contrôle géométrique des gorges
Le présent document spécifie les méthodes de contrôle de la régularité des gorges et des poulies pour courroies trapézoïdales spécifiées dans le système basé sur la largeur de référence. Les poulies à gorges peuvent être conçues pour être utilisées avec des courroies trapézoïdales classiques ou étroites. Les paramètres de contrôle et les tolérances des poulies à gorges sont traités dans les Normes internationales appropriées.
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INTERNATIONAL ISO
STANDARD 255
Third edition
2023-02
Belt drives — Pulleys for V-belts
(system based on datum width) —
Geometrical inspection of grooves
Transmissions par courroies — Poulies à gorges pour courroies
trapézoïdales (système basé sur la largeur de référence) — Contrôle
géométrique des gorges
Reference number
ISO 255:2023(E)
© ISO 2023
---------------------- Page: 1 ----------------------
ISO 255:2023(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 255:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 1
5 Principle . 2
6 Groove profile . 2
6.1 Specification . 2
6.2 Inspection . 2
6.2.1 Limit gauges. 2
6.2.2 Operation . 3
7 Groove spacing . 7
7.1 Specification . 7
7.1.1 Groove spacings . 7
7.1.2 Distance between edge of pulley and first group centre . 8
7.2 Inspection . 8
8 Datum diameter .9
8.1 Specifications . 9
8.1.1 Datum diameter . 9
8.1.2 Checking balls or rods . 9
8.2 Inspection . 9
9 Run-out tolerances .10
9.1 Specifications . 10
9.2 Inspection . 10
Annex A (normative) Groove inspection with balls or rods for pulleys used with classical
and narrow V-belts as defined by ISO 4183 .11
Bibliography .12
iii
© ISO 2023 – All rights reserved
---------------------- Page: 3 ----------------------
ISO 255:2023(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 normally carried out
through ISO 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.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 41, Pulleys and belts (including veebelts),
Subcommittee SC 1, Friction.
This third edition cancels and replaces the second edition (ISO 255:1990), which has been technically
revised.
The main changes are as follows:
— the normative references list has been updated, including adding of ISO 1081 (vocabulary);
— in Clause 2 and Bibliography, normative references are no longer dated;
— modifications made for clarification and to be in line with ISO drafting rules.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
© ISO 2023 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 255:2023(E)
Introduction
In drives using V-belts, the dimensions of the pulley grooves can be defined either on the basis of the
datum width or on the basis of the effective width. As a result, two systems for definition and description
of the dimensions of pulleys and belts have been developed. The two systems are independent of each
other.
For the geometrical inspection of grooves defined on the basis of the datum width, necessary tests
to ensure by mechanical means the conformity of a grooved pulley with standard specifications were
specified, but modern quick or serial checking procedures for grooved pulley production control were
not.
For user clarification, the interaction of this document with other relevant documents developed by
ISO/TC 41/SC 1 and ISO/TC 213 “Dimensional and geometrical product specifications and verification”
is given in Figure 1.
Figure 1 — Interaction of this document with other relevant documents developed by
ISO/TC 41/SC 1 and ISO/TC 213
v
© ISO 2023 – All rights reserved
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 255:2023(E)
Belt drives — Pulleys for V-belts (system based on datum
width) — Geometrical inspection of grooves
1 Scope
This document specifies the methods of checki
...
NORME ISO
INTERNATIONALE 255
Troisième édition
2023-02
Transmissions par courroies —
Poulies à gorges pour courroies
trapézoïdales (système basé sur la
largeur de référence) — Contrôle
géométrique des gorges
Belt drives — Pulleys for V-belts (system based on datum width) —
Geometrical inspection of grooves
Numéro de référence
ISO 255:2023(F)
© ISO 2023
---------------------- Page: 1 ----------------------
ISO 255:2023(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2023
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: +41 22 749 01 11
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse
ii
© ISO 2023 – Tous droits réservés
---------------------- Page: 2 ----------------------
ISO 255:2023(F)
Sommaire Page
Avant-propos .iv
Introduction .v
1 Domaine d'application .1
2 Références normatives .1
3 Termes et définitions . 1
4 Symboles . 1
5 Principe. 2
6 Profil de gorge . 2
6.1 Spécification . 2
6.2 Contrôle . . 3
6.2.1 Calibres à limites . 3
6.2.2 Opération . 3
7 Pas des gorges . 8
7.1 Spécification . 8
7.1.1 Pas des gorges . 8
7.1.2 Distance entre le bord de la poulie et le centre du premier groupe . 9
7.2 Contrôle . . 9
8 Diamètre de référence .10
8.1 Spécifications . 10
8.1.1 Diamètre de référence . 10
8.1.2 Piges de vérification . 10
8.2 Contrôle . . 10
9 Tolérances de battement .11
9.1 Spécifications . 11
9.2 Contrôle . . 11
Annexe A (normative) Contrôle des gorges avec des piges pour les poulies utilisées avec
des courroies trapézoïdales classiques et étroites telles que définies dans l'ISO 4183 .12
Bibliographie .13
iii
© ISO 2023 – Tous droits réservés
---------------------- Page: 3 ----------------------
ISO 255:2023(F)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes
nationaux de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est
en général confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude
a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,
gouvernementales et non gouvernementales, en liaison avec l'ISO participent également aux travaux.
L'ISO collabore étroitement avec la Commission électrotechnique internationale (IEC) en ce qui
concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier, de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document a
été rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir
www.iso.org/directives).
L'attention est attirée sur le fait que certains des éléments du présent document peuvent faire l'objet de
droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable
de ne pas avoir identifié de tels droits de propriété et averti de leur existence. Les détails concernant
les références aux droits de propriété intellectuelle ou autres droits analogues identifiés lors de
l'élaboration du document sont indiqués dans l'Introduction et/ou dans la liste des déclarations de
brevets reçues par l'ISO (voir www.iso.org/brevets).
Les appellations commerciales éventuellement mentionnées dans le présent document sont données
pour information, par souci de commodité, à l’intention des utilisateurs et ne sauraient constituer un
engagement.
Pour une explication de la nature volontaire des normes, la signification des termes et expressions
spécifiques de l'ISO liés à l'évaluation de la conformité, ou pour toute information au sujet de l'adhésion
de l'ISO aux principes de l’Organisation mondiale du commerce (OMC) concernant les obstacles
techniques au commerce (OTC), voir www.iso.org/avant-propos.
Le présent document a été élaboré par le comité technique ISO/TC 41, Poulies et courroies (y compris les
courroies trapézoïdales), sous-comité SC 1, Courroies de transmission par friction.
Cette troisième édition annule et remplace la seconde édition (ISO 255:1990), qui a fait l’objet d’une
révision technique.
Les principales modifications sont les suivantes:
— la liste des références normatives a été mise à jour, y compris l'ajout de l’ISO 1081 (vocabulaire);
— dans l'Article 2 et la Bibliographie, les références normatives ne sont plus datées;
— des modifications ont été apportées à des fins de clarification et pour être en conformité avec les
règles de rédaction de l'ISO.
Il convient que l’utilisateur adresse tout retour d’information ou toute question concernant le présent
document à l’organisme national de normalisation de son pays. Une liste exhaustive desdits organismes
se trouve à l’adresse www.iso.org/fr/members.html.
iv
© ISO 2023 – Tous droits réservés
---------------------- Page: 4 ----------------------
ISO 255:2023(F)
Introduction
Dans les transmissions par courroies trapézoïdales, les dimensions des gorges de poulies peuvent être
définies soit sur la base de la largeur de référence, soit sur la base de la largeur effective. En conséquence,
deux systèmes pour la définition et la description des dimensions des poulies et des courroies ont été
développés. Les deux systèmes sont indépendants l'un de l'autre.
Pour le contrôle géométrique des gorges définies sur la base de la largeur de référence, des essais
nécessaires pour garantir à l'aide de moyens mécaniques la conformité d'une poulie à gorges par
rapport aux spécifications normalisées ont été spécifiés, alors que les procédures modernes de contrôle
rapide ou pour le contrôle en cours de production des poulies à gorges ne le sont pas.
Pour la bonne compréhension de l'utilisateur, l'interaction du présent document avec d'autres
documents pertinents élaborés par l'ISO/TC 41/SC 1 et l'ISO/TC 213 "Spécifications et vérification
dimensionnelles et géométriques des produits" est indiquée à la Figure 1.
Figure 1 — Interaction du présent document avec d'autres documents pertinents élaborés par
l'ISO/TC 41/SC 1 et l'ISO/TC 213
v
© ISO 2023 – Tous droits réservés
---------------------- Page: 5 ----------------------
NORME INTERNATIONALE ISO 255:2023(F)
Transmissions par courroies — Poulies à gorges pour
courroies trapézoïdales (système basé sur la largeur de
référence) — Contrôle géométrique des gorges
1 Domaine d'application
Le présent document spécifie les méthodes de contrôle de la régularité des gorges et des poulies pour
courroies trapézoïdales spécifiées dans le système basé sur la largeur de référence. Les poulies à gorges
peuvent être conçues pour être utilisées avec des courroies trapézoïdales classiques ou étroites.
Les paramètres de contrôle et les tolérances des poulies à gorges sont traités dans les Normes
...
ISO/TC 41/SC 1
Date: 2022-12-0609
ISO 255:2022(E)
ISO/TC 41/SC 1/WG
Secretariat: AFNOR
Belt drives — Pulleys for V-belts (system based on datum width) — Geometrical
inspection of grooves
Transmissions par courroies — Poulies à gorges pour courroies trapézoïdales (système
basé sur la largeur de référence) — Contrôle géométrique des gorges
---------------------- Page: 1 ----------------------
ISO/FDIS 255:2022(E)
© ISO 2022
All rights reserved. Unless otherwise specified, 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 2022 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/FDIS 255:2022(E)
Contents Page
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 1
5 Principle . 2
6 Groove profile . 2
6.1 Specification . 2
6.2 Inspection .4
6.2.1 Limit gauges . 4
6.2.2 Operation . 4
7 Groove spacing . 14
7.1 Specification . 14
7.1.1 Groove spacings . 14
7.1.2 Distance between edge of pulley and first group centre . 15
7.2 Inspection . 15
8 Datum diameter . 17
8.1 Specifications . 17
8.1.1 Datum diameter . 17
8.1.2 Checking balls or rods. 17
8.2 Inspection . 17
9 Run-out tolerances . 18
9.1 Specifications . 18
9.2 Inspection . 18
Annex A (normative) Groove inspection with balls or rods for pulleys used with classical
and narrow V-belts as defined by ISO 4183 . 20
Bibliography . 21
© ISO 2022 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/FDIS 255:2022(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 normally carried out
through ISO 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. ISO
collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any
patent rights identified during the development of the document will be in the Introduction and/or on
the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation onof the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the World
Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT)), see
www.iso.org/iso/foreword.htmlthe following URL: .
This document was prepared by Technical Committee ISO/TC 41, Pulleys and belts (including veebelts),
Subcommittee SC 1, Friction.
This third edition cancels and replaces the second edition (ISO 255:1990), which has been technically
revised.
The main changes are as follows:
— the normative references list has been updated, including adding of ISO 1081 (vocabulary);
— in Clause 2 and Bibliography, normative references are no longer dated;
— modifications made for clarification and to be in line with ISO drafting rules.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv © ISO 2022 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/FDIS 255:2022(E)
Introduction
In drives using V-belts, the dimensions of the pulley grooves can be defined either on the basis of the
datum width or on the basis of the effective width. As a result, two systems for definition and description
of the dimensions of pulleys and belts have been developed. The two systems are independent of each
other.
For the geometrical inspection of grooves defined on the basis of the datum width, necessary tests to
ensure by mechanical means the conformity of a grooved pulley with standard specifications were
specified, but modern quick or serial checking procedures for grooved pulley production control were
not.
For user clarification, the interaction of this document with other relevant documents developed by
ISO/TC 41/SC 1 and ISO/TC 213 "“Dimensional and geometrical product specifications and verification"”
is given in Figure 1.
© ISO 2022 – All rights reserved v
---------------------- Page: 5 ----------------------
ISO/FDIS 255:2022(E)
Figure 1 — Interaction of this document with other relevant documents developed by
ISO/TC 41/SC 1 and ISO/TC 213
vi © ISO 2022 – All rights reserved
---------------------- Page: 6 ----------------------
DRAFT INTERNATIONAL STANDARD ISO/FDIS 255:2022(E)
Belt drives — Pulleys for V-belts (system based on datum
width) — Geometrical inspection of grooves
1 Scope
This document specifies the methods of checking the regularity of the grooves and pulleys for V-belts
specified in the system based on datum width. The grooved pulleys may be designed for use with classical
or narrow V-belts.
Inspection parameters and tolerances of grooved pulleys are covered by appropriate International
Standards.
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.
ISO 1081, Belt drives — V-belts and V-ribbed belts, and corresponding grooved pulleys — Vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 1081 apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
4 Symbols and abbreviated terms
For the purpose of this document, the symbols and abbreviat
...
INTERNATIONAL ISO
STANDARD 255
Third edition
Belt drives — Pulleys for V-belts
(system based on datum width) —
Geometrical inspection of grooves
Transmissions par courroies — Poulies à gorges pour courroies
trapézoïdales (système basé sur la largeur de référence) — Contrôle
géométrique des gorges
PROOF/ÉPREUVE
Reference number
ISO 255:2022(E)
© ISO 2022
---------------------- Page: 1 ----------------------
ISO 255:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
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
PROOF/ÉPREUVE © ISO 2022 – All rights reserved
---------------------- Page: 2 ----------------------
ISO 255:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 1
5 Principle . 2
6 Groove profile . 2
6.1 Specification . 2
6.2 Inspection . 2
6.2.1 Limit gauges. 2
6.2.2 Operation . 3
7 Groove spacing . 7
7.1 Specification . 7
7.1.1 Groove spacings . 7
7.1.2 Distance between edge of pulley and first group centre . 8
7.2 Inspection . 8
8 Datum diameter .9
8.1 Specifications . 9
8.1.1 Datum diameter . 9
8.1.2 Checking balls or rods . 9
8.2 Inspection . 9
9 Run-out tolerances .10
9.1 Specifications . 10
9.2 Inspection . 10
Annex A (normative) Groove inspection with balls or rods for pulleys used with classical
and narrow V-belts as defined by ISO 4183 .11
Bibliography .12
iii
© ISO 2022 – All rights reserved PROOF/ÉPREUVE
---------------------- Page: 3 ----------------------
ISO 255:2022(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 normally carried out
through ISO 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.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 41, Pulleys and belts (including veebelts),
Subcommittee SC 1, Friction.
This third edition cancels and replaces the second edition (ISO 255:1990), which has been technically
revised.
The main changes are as follows:
— the normative references list has been updated, including adding of ISO 1081 (vocabulary);
— in Clause 2 and Bibliography, normative references are no longer dated;
— modifications made for clarification and to be in line with ISO drafting rules.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
PROOF/ÉPREUVE © ISO 2022 – All rights reserved
---------------------- Page: 4 ----------------------
ISO 255:2022(E)
Introduction
In drives using V-belts, the dimensions of the pulley grooves can be defined either on the basis of the
datum width or on the basis of the effective width. As a result, two systems for definition and description
of the dimensions of pulleys and belts have been developed. The two systems are independent of each
other.
For the geometrical inspection of grooves defined on the basis of the datum width, necessary tests
to ensure by mechanical means the conformity of a grooved pulley with standard specifications were
specified, but modern quick or serial checking procedures for grooved pulley production control were
not.
For user clarification, the interaction of this document with other relevant documents developed by
ISO/TC 41/SC 1 and ISO/TC 213 “Dimensional and geometrical product specifications and verification”
is given in Figure 1.
Figure 1 — Interaction of this document with other relevant documents developed by
ISO/TC 41/SC 1 and ISO/TC 213
v
© ISO 2022 – All rights reserved PROOF/ÉPREUVE
---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 255:2022(E)
Belt drives — Pulleys for V-belts (system based on datum
width) — Geometrical inspection of grooves
1 Scope
This document specifies the methods of checking the regularity of the grooves and pulleys for V-belt
...
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