ISO 21433:2018

INTERNATIONAL ISO
STANDARD 21433
First edition
2018-10
Plain bearings — Handling of plain
bearings
Paliers lisses — Manipulation des paliers lisses
Reference number
©
ISO 2018
© ISO 2018
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ii © ISO 2018 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Storage and transportation . 1
4.1 General . 1
4.2 Storage and transportation by packing . 1
4.2.1 General. 1
4.2.2 Purpose of packing . . 1
4.2.3 Packing method . 2
4.2.4 Packing material . 2
4.2.5 Unpacking . 2
4.3 Storage and transportation in containers. 2
4.3.1 General. 2
4.3.2 Purpose of storage and transportation in containers . 2
4.3.3 Points to notice at storage and transportation . 3
4.3.4 Other methods of storage and transportation . 3
4.3.5 Attachment of test and quality certificate . 3
4.4 Selection of rust inhibitors and cleaning agents . 3
4.5 Storage environment . 3
4.5.1 Warehouse or storage room. 3
4.5.2 Ambient temperature of storage room . 3
4.5.3 Environmental humidity for storage room . 3
4.5.4 First-in first-out . 4
4.6 Handling. 4
4.7 Documentation . 4
5 Method of installation of plain bearings. 4
5.1 Points to consider during plain bearings installation . 4
5.1.1 Plain bearings . 4
5.1.2 Housing . 4
5.1.3 Press-fit method . 4
5.1.4 Screw –fixing method . 5
5.1.5 Keyed joint method . . 5
5.1.6 Retaining ring fixing method . 5
5.1.7 Shrink fitting by cooling . 5
5.1.8 Shrink fitting by heating . 5
5.1.9 Points to notice during installation of plain bearings . 6
5.1.10 Points to notice after installation of plain bearings. 6
5.2 Mating shaft and assembly inspection . 6
5.2.1 Mating shaft . . 6
5.2.2 Installation of shaft . 6
5.2.3 Check of operation . 6
6 Operation . 6
6.1 Cleaning (flushing) of lubrication system . . 6
6.2 Running-in . 6
6.3 Supervision during operation . 7
6.3.1 Control and check items . 7
6.3.2 Record . 7
7 Replacement of plain bearings . 7
7.1 General . 7
7.2 Dismounting of plain bearings . 7
7.3 Replacement by new plain bearings . 8
Bibliography . 9
iv © ISO 2018 – 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
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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
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URL: www .iso .org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 123, Plain bearings, Subcommittee SC 6,
Terms and common items.
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.
Introduction
The purpose of this document is to give appropriate methods of handling plain bearings. Alternative
practises may be adopted as agreed between bearing suppliers and their customers.
Inappropriate handling can cause premature damage to bearings and should be avoided.
This document provides four clauses for the handling of plain bearings:
— storage and transportation;
— installation (fitting);
— operation (running);
— replacement (exchange of bearing).
vi © ISO 2018 – All rights reserved

INTERNATIONAL STANDARD ISO 21433:2018(E)
Plain bearings — Handling of plain bearings
1 Scope
This document specifies requirements and guidance on the storage, transportation, handling,
installation, operation and replacement of plain bearings and related parts.
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 4378-1, Plain bearings — Terms, definitions, classification and symbols — Part 1: Design, bearing
materials and their properties
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 4378-1 apply.
ISO and IEC mai
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