Rolling bearings - Cylindrical roller bearings, separate thrust collars - Boundary dimensions

ISO 246:2007 specifies the width, the maximum outside diameter, the bore and the bore minimum chamfer of separate thrust collars for cylindrical roller bearings in diameter series 0, 2, 3, and 4 as specified in ISO 15.
Dimensions for overall width and other geometrical features are not specified as they are dependent on the internal design of the bearings.

Wälzlager - Zylinderrollenlager, Winkelringe - Hauptmaße / Achtung: Vorgesehen als Ersatz

Roulements - Roulements à rouleaux cylindriques, bagues d'épaulement séparées - Dimensions d'encombrement

L'ISO 246:2007 spécifie la largeur, le diamètre extérieur maximal, l'alésage et l'arrondi minimal de l'alésage des bagues d'épaulement séparées des roulements à rouleaux cylindriques des séries de diamètres 0, 2, 3 et 4 tels que spécifiés dans l'ISO 15.
Les dimensions de la largeur hors tout et d'autres caractéristiques géométriques dépendant de la conception interne des roulements ne sont pas spécifiées.

Kotalni ležaji - Valjčni kotalni ležaji, kotni obroč valjčnega kotalnega ležaja - Glavne mere

General Information

Status
Published
Publication Date
09-Jun-2008
Technical Committee
ISEL - Mechanical elements
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
26-May-2008
Due Date
31-Jul-2008
Completion Date
10-Jun-2008

Relations

Effective Date
01-Mar-2015

Overview

SIST ISO 246:2008 is an international standard published by the International Organization for Standardization (ISO) that defines the boundary dimensions for separate thrust collars used with cylindrical roller bearings. Specifically, it covers the width, maximum outside diameter, bore diameter, and bore minimum chamfer of thrust collars designed for cylindrical roller bearings within diameter series 0, 2, 3, and 4, as outlined in the related ISO 15 standard.

This standard excludes specifications for overall width and internal geometrical features that vary depending on the bearing’s internal design. SIST ISO 246:2008 helps ensure interchangeability, compatibility, and consistency in the manufacturing and application of thrust collars in rolling bearing assemblies.

Key Topics

  • Scope and Applicability
    SIST ISO 246:2008 applies to separate thrust collars for cylindrical roller bearings in multiple diameter series (0, 2, 3, 4) including standard and reinforced (E-design) types. It standardizes key dimensions critical for bearing fit and function.

  • Boundary Dimension Specifications
    The standard details dimensions such as:

    • Width (B) of thrust collar protruding beyond the inner ring face
    • Maximum outside diameter (dₐ)
    • Bore diameter (d)
    • Minimum chamfer dimension (r₁s min) at the bore
  • Diameter Series and Design Variations
    The standard covers different diameter series with corresponding dimension tables, addressing both standard and enhanced load-bearing designs (2E and 3E series) characterized by reinforced roller and cage assemblies.

  • Normative References
    SIST ISO 246:2008 references other crucial standards, reinforcing consistency:

    • ISO 15 (Rolling bearings-Radial bearings boundary dimensions)
    • ISO 582 (Chamfer dimensions - maximum values)
    • ISO 5593 (Rolling bearings vocabulary)
    • ISO 15241 (Symbols for quantities in rolling bearings)
  • Technical Symbols and Definitions
    Symbols such as B (thrust collar width), d (bore diameter), and r (chamfer) are used consistently to communicate dimensional values clearly.

Applications

SIST ISO 246:2008 is essential for manufacturers, engineers, and designers involved with rolling element bearing assemblies, particularly where separate thrust collars are implemented. Its standardization facilitates:

  • Bearing Assembly Design
    Ensuring that thrust collars conform to prescribed dimensions guarantees correct assembly fit, optimal bearing performance, and reduced risk of premature wear or failure.

  • Quality Control and Inspection
    Provides measurable, defined dimensions for acceptance criteria in production and quality assurance processes within bearing manufacturing.

  • Interchangeability and Compatibility
    Standardized dimensions enable bearings and thrust collars from different manufacturers to be compatible, simplifying maintenance, repairs, and replacement operations.

  • Mechanical Equipment Reliability
    Used across industries such as automotive, aerospace, industrial machinery, and heavy equipment to ensure reliability of machines relying on cylindrical roller bearings.

Related Standards

When working with SIST ISO 246:2008, the following standards are directly relevant:

  • ISO 15: Rolling Bearings - Radial Bearings - Boundary Dimensions, General Plan
    Defines general boundary dimensions and diameter series classifications for radial bearings, forming the basis for ISO 246 dimensional references.

  • ISO 582: Rolling Bearings - Chamfer Dimensions - Maximum Values
    Specifies chamfer sizes for bearing components, ensuring standardization of edges to prevent stress concentrations and ease installation.

  • ISO 5593: Rolling Bearings - Vocabulary
    Provides terminology used consistently for clear communication in the rolling bearing industry.

  • ISO 15241: Rolling Bearings - Symbols for Quantities
    Defines symbols used universally in documentation and technical drawings related to rolling bearings.


By adhering to the specifications of SIST ISO 246:2008, professionals can achieve consistent performance, durability, and reliability in cylindrical roller bearing assemblies employing separate thrust collars, thereby optimizing the mechanical integrity of rotating machinery worldwide.

Standard

ISO 246:2007 - Rolling bearings -- Cylindrical roller bearings, separate thrust collars -- Boundary dimensions

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Standard

ISO 246:2007 - Roulements -- Roulements a rouleaux cylindriques, bagues d'épaulement séparées -- Dimensions d'encombrement

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Frequently Asked Questions

SIST ISO 246:2008 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Rolling bearings - Cylindrical roller bearings, separate thrust collars - Boundary dimensions". This standard covers: ISO 246:2007 specifies the width, the maximum outside diameter, the bore and the bore minimum chamfer of separate thrust collars for cylindrical roller bearings in diameter series 0, 2, 3, and 4 as specified in ISO 15. Dimensions for overall width and other geometrical features are not specified as they are dependent on the internal design of the bearings.

ISO 246:2007 specifies the width, the maximum outside diameter, the bore and the bore minimum chamfer of separate thrust collars for cylindrical roller bearings in diameter series 0, 2, 3, and 4 as specified in ISO 15. Dimensions for overall width and other geometrical features are not specified as they are dependent on the internal design of the bearings.

SIST ISO 246:2008 is classified under the following ICS (International Classification for Standards) categories: 21.100.20 - Rolling bearings. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST ISO 246:2008 has the following relationships with other standards: It is inter standard links to SIST ISO 246:2001. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase SIST ISO 246:2008 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-julij-2008
1DGRPHãþD
SIST ISO 246:2001
.RWDOQLOHåDML9DOMþQLNRWDOQLOHåDMLNRWQLREURþYDOMþQHJDNRWDOQHJDOHåDMD
*ODYQHPHUH
Rolling bearings - Cylindrical roller bearings, separate thrust collars - Boundary
dimensions
Wälzlager - Zylinderrollenlager, Winkelringe - Hauptmaße / Achtung: Vorgesehen als
Ersatz
Roulements - Roulements à rouleaux cylindriques, bagues d'épaulement séparées -
Dimensions d'encombrement
Ta slovenski standard je istoveten z: ISO 246:2007
ICS:
21.100.20 Kotalni ležaji Rolling bearings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 246
Third edition
2007-08-01
Rolling bearings — Cylindrical roller
bearings, separate thrust collars —
Boundary dimensions
Roulements — Roulements à rouleaux cylindriques, bagues
d'épaulement séparées — Dimensions d'encombrement

Reference number
©
ISO 2007
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.

©  ISO 2007
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 either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2007 – All rights reserved

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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. 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.
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.
ISO 246 was prepared by Technical Committee ISO/TC 4, Rolling bearings.
This third edition cancels and replaces the second edition (ISO 246:1995), which has been technically revised.

INTERNATIONAL STANDARD ISO 246:2007(E)

Rolling bearings — Cylindrical roller bearings, separate thrust
collars — Boundary dimensions
1 Scope
This International Standard specifies the width, the maximum outside diameter, the bore and the bore
minimum chamfer of separate thrust collars for cylindrical roller bearings in diameter series 0, 2, 3, and 4 as
specified in ISO 15.
Dimensions for overall width and other geometrical features are not specified as they are dependent on the
internal design of the bearings.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the reference
...


INTERNATIONAL ISO
STANDARD 246
Third edition
2007-08-01
Rolling bearings — Cylindrical roller
bearings, separate thrust collars —
Boundary dimensions
Roulements — Roulements à rouleaux cylindriques, bagues
d'épaulement séparées — Dimensions d'encombrement

Reference number
©
ISO 2007
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.

©  ISO 2007
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 either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2007 – All rights reserved

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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. 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.
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.
ISO 246 was prepared by Technical Committee ISO/TC 4, Rolling bearings.
This third edition cancels and replaces the second edition (ISO 246:1995), which has been technically revised.

INTERNATIONAL STANDARD ISO 246:2007(E)

Rolling bearings — Cylindrical roller bearings, separate thrust
collars — Boundary dimensions
1 Scope
This International Standard specifies the width, the maximum outside diameter, the bore and the bore
minimum chamfer of separate thrust collars for cylindrical roller bearings in diameter series 0, 2, 3, and 4 as
specified in ISO 15.
Dimensions for overall width and other geometrical features are not specified as they are dependent on the
internal design of the bearings.
2 Normative references
The following referenced documents are indispensable for the application 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 15, Rolling bearings — Radial bearings — Boundary dimensions, general plan
ISO 582, Rolling bearings — Chamfer dimensions — Maximum values
ISO 5593, Rolling bearings — Vocabulary
ISO 15241, Rolling bearings — Symbols for quantities
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 5593 apply.
4 Symbols
For the purposes of this document, the sy
...


NORME ISO
INTERNATIONALE 246
Troisième édition
2007-08-01
Roulements — Roulements à rouleaux
cylindriques, bagues d'épaulement
séparées — Dimensions d'encombrement
Rolling bearings — Cylindrical roller bearings, separate thrust collars —
Boundary dimensions
Numéro de référence
©
ISO 2007
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acceptent de fait la responsabilité de ne pas enfreindre les conditions de licence d'Adobe. Le Secrétariat central de l'ISO décline toute
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Adobe est une marque déposée d'Adobe Systems Incorporated.
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du fichier; les paramètres de création PDF ont été optimisés pour l'impression. Toutes les mesures ont été prises pour garantir
l'exploitation de ce fichier par les comités membres de l'ISO. Dans le cas peu probable où surviendrait un problème d'utilisation,
veuillez en informer le Secrétariat central à l'adresse donnée ci-dessous.

DOCUMENT PROTÉGÉ PAR COPYRIGHT

©  ISO 2007
Droits de reproduction réservés. Sauf prescription différente, 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 et les microfilms, sans l'accord écrit
de l'ISO à l'adresse ci-après ou du comité membre de l'ISO dans le pays du demandeur.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax. + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Publié en Suisse
ii © ISO 2007 – Tous droits réservés

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 (CEI) en ce qui concerne la normalisation électrotechnique.
Les Normes internationales sont rédigées conformément aux règles données dans les Directives ISO/CEI,
Partie 2.
La tâche principale des comités techniques est d'élaborer les Normes internationales. Les projets de Normes
internationales adoptés par les comités techniques sont soumis aux comités membres pour vote. Leur
publication comme Normes internationales requiert l'approbation de 75 % au moins des comités membres
votants.
L'attention est appelée 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.
L'ISO 246 a été élaborée par le comité technique ISO/TC 4, Roulements.
Cette troisième édition annule et remplace la deuxième édition (ISO 246:1995), qui a fait l'objet d'une révision
technique.
NORME INTERNATIONALE ISO 246:2007(F)

Roulements — Roulements à rouleaux cylindriques, bagues
d'épaulement séparées — Dimensions d'encombrement
1 Domaine d'application
La présente Norme internationale spécifie la largeur, le diamètre extérieur maximal, l’alésage et l’arrondi
minimal de l’alésage des bagues d’épaulement séparées des roulements à rouleaux cylindriques des séries
de diamètres 0, 2, 3 et 4 tels que spécifiés dans l’ISO 15.
Les dimensions de la largeur hors tout et d'autres caractéristiques géométriques dépendant de la conception
interne des roulements ne sont pas spécifiées.
2 Références normatives
Les documents de référence suivants sont indispensables pour l'application du présent document. Pour les
références datées, seule l'édition citée s'applique. Pour les références non datées, la dernière édition du
document de référence s'applique (y compris les éventuels amendements).
ISO 15, Roulements — Roulements radiaux — Dimensions d'encombrement, plan général
ISO 582, Roulements — Dimensions des arrondis — Valeurs maximales
ISO 5593, Roulements — Vocabulaire
ISO 15241, Roulements — Symboles relatifs aux grandeurs
3 Termes et dé
...

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