ISO 3547-3:2017

Plain bearings — Wrapped bushes — Part 3: Lubrication holes, grooves and indentations

ISO 3547-3:2017 specifies dimensions of lubrication holes, grooves and bore indentations on wrapped bushes made of mono and multi-layer bearing material for plain bearing applications. NOTE Wrapped bushes with lubrication holes, grooves or bore indentations in accordance with this document can be ordered with dimensions in accordance with ISO 3547‑1 and made from materials in accordance with ISO 3547‑4.

Paliers lisses — Bagues roulées — Partie 3: Trous de graissage, rainures de graissage et creux de graissage

Drsni ležaji - Zvite puše - 3. del: Mazalne luknje, utori in žepki

General Information

• Status: Published
• Publication Date: 23-Feb-2017
• ICS: 21.100.10 - Plain bearings
• Technical Committee: ISO/TC 123/SC 3 - Dimensions, tolerances and construction details
• Drafting Committee: ISO/TC 123/SC 3 - Dimensions, tolerances and construction details
• Current Stage: 9093 - International Standard confirmed
• Start Date: 14-Sep-2022
• Completion Date: 14-Feb-2026
• Ref Project: SIST ISO 3547-3:2020 - Plain bearings - Wrapped bushes - Part 3: Lubrication holes, grooves and indentations

Relations

• Revises: ISO 3547-3:2006 - Plain bearings — Wrapped bushes — Part 3: Lubrication holes, grooves and indentations
• Effective Date: 19-Dec-2015

Overview

ISO 3547-3:2017 provides internationally recognized specifications for the design and dimensions of lubrication holes, grooves, and indentations in wrapped bushes. These bushes are key components in plain bearing applications and are made from mono and multi-layer bearing materials. The standard ensures reliable lubrication pathways in plain bearings, improving performance, reducing wear, and extending service life. Wrapped bushes with features specified in ISO 3547-3:2017 can be ordered with dimensions compliant with ISO 3547-1 and made from materials in accordance with ISO 3547-4.

Key Topics

• Lubrication Holes: Dimensioning and recommended placement of lubrication holes to optimize distribution of lubricants within the bush.
• Lubrication Grooves: Types, shapes, and permissible variations in groove design, ensuring effective lubrication flow; includes details for different groove types (e.g., M1, M1A/M1B, M2, M2A/M2B).
• Indentations: Specification of bore indentations (N1, N2, N3), geometry, patterning, and their use for storing lubricants and promoting continuous lubrication in operation.
• Symbols and Units: Standardized terminology and units of measurement to ensure consistency in international manufacturing and supply chains.
• Designation Examples: Guidance on how to specify and order wrapped bushes to ensure compliance with the standard.

Applications

ISO 3547-3:2017 is widely applicable across industries where plain bearings and wrapped bushes are used. Typical applications include:

• Automotive Engineering: Bushes in engines, transmissions, chassis, and suspension systems.
• Industrial Machinery: Bearings in pumps, electric motors, conveyors, and processing equipment.
• Aerospace and Rail: Use in actuation systems and components subject to friction and dynamic loads.
• Agricultural and Construction Equipment: Machinery exposed to harsh conditions benefits from improved lubrication arrangements specified in this standard.

Benefits of adopting ISO 3547-3:2017 include:

• Enhanced performance and reliability of plain bearings due to optimized lubrication.
• Reduced maintenance intervals and lower operating costs thanks to improved wear resistance.
• Greater compatibility of parts and interchangeability between manufacturers globally.

Related Standards

Correct implementation of ISO 3547-3:2017 is supported by familiarity with related standards in the ISO 3547 series and plain bearing terminology, ensuring a comprehensive approach to plain bearing design and quality control:

• ISO 3547-1: Plain bearings - Wrapped bushes - Part 1: Dimensions
• ISO 3547-2: Plain bearings - Wrapped bushes - Part 2: Test data for outside and inside diameters
• ISO 3547-4: Plain bearings - Wrapped bushes - Part 4: Materials
• ISO 3547-7: Plain bearings - Wrapped bushes - Part 7: Measurement of wall thickness of thin-walled bushes
• ISO 4378-1: Plain bearings - Terms, definitions, classification and symbols - Part 1: Design, bearing materials, and their properties
• ISO 4378-4: Plain bearings - Terms, definitions, classification and symbols - Part 4: Basic symbols

By following ISO 3547-3:2017, manufacturers and engineers can ensure higher quality, longer life, and smoother operation of plain bearings, regardless of the specific industry or application. This standard is essential for anyone seeking standardized, high-performance solutions for wrapped bush lubrication in plain bearing assemblies.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2020
Drsni ležaji - Zvite puše - 3. del: Mazalne luknje, utori in žepki
Plain bearings - Wrapped bushes - Part 3: Lubrication holes, grooves and indentations
Paliers lisses - Bagues roulées
Ta slovenski standard je istoveten z: ISO 3547-3:2017
ICS:
21.100.10 Drsni ležaji Plain bearings
21.260 Mazalni sistemi Lubrication systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 3547-3
Third edition
2017-02
Plain bearings — Wrapped bushes —
Part 3:
Lubrication holes, grooves and
indentations
Paliers lisses — Bagues roulées —
Partie 3: Trous de graissage, rainures de graissage et creux de
graissage
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2017 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and units . 1
5 General . 2
6 Lubrication holes . 2
7 Lubrication grooves . 3
7.1 General . 3
7.2 Type M1 . 3
7.2.1 General. 3
7.2.2 Type M1A . 4
7.2.3 Type M1B . 4
7.3 Type M2 . 5
7.3.1 General. 5
7.3.2 Type M2A . 6
7.3.3 Type M2B . 6
8 Lubrication indentations . 6
8.1 General . 6
8.2 Types N1 . 6
8.3 Type N2 . 7
8.4 Type N3 . 8
9 Designation . 9
Bibliography .10
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 on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: w w w . i s o .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 123, Plain bearings, Subcommittee SC 3,
Dimensions, tolerances and construction details.
This third edition cancels and replaces the second edition (ISO 3547-3:2006), which has been technically
revised.
A list of all the parts in the ISO 3547 series can be found on the ISO website.
iv © ISO 2017 – All rights reserved

INTERNATIONAL STANDARD ISO 3547-3:2017(E)
Plain bearings — Wrapped bushes —
Part 3:
Lubrication holes, grooves and indentations
1 Scope
This document specifies dimensions of lubrication holes, grooves and bore indentations on wrapped
bushes made of mono and multi-layer bearing material for plain bearing
...

INTERNATIONAL ISO
STANDARD 3547-3
Third edition
2017-02
Plain bearings — Wrapped bushes —
Part 3:
Lubrication holes, grooves and
indentations
Paliers lisses — Bagues roulées —
Partie 3: Trous de graissage, rainures de graissage et creux de
graissage
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2017 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and units . 1
5 General . 2
6 Lubrication holes . 2
7 Lubrication grooves . 3
7.1 General . 3
7.2 Type M1 . 3
7.2.1 General. 3
7.2.2 Type M1A . 4
7.2.3 Type M1B . 4
7.3 Type M2 . 5
7.3.1 General. 5
7.3.2 Type M2A . 6
7.3.3 Type M2B . 6
8 Lubrication indentations . 6
8.1 General . 6
8.2 Types N1 . 6
8.3 Type N2 . 7
8.4 Type N3 . 8
9 Designation . 9
Bibliography .10
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 on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: w w w . i s o .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 123, Plain bearings, Subcommittee SC 3,
Dimensions, tolerances and construction details.
This third edition cancels and replaces the second edition (ISO 3547-3:2006), which has been technically
revised.
A list of all the parts in the ISO 3547 series can be found on the ISO website.
iv © ISO 2017 – All rights reserved

INTERNATIONAL STANDARD ISO 3547-3:2017(E)
Plain bearings — Wrapped bushes —
Part 3:
Lubrication holes, grooves and indentations
1 Scope
This document specifies dimensions of lubrication holes, grooves and bore indentations on wrapped
bushes made of mono and multi-layer bearing material for plain bearing applications.
NOTE Wrapped bushes with lubrication holes, grooves or bore indentations in accordance with this
document can be ordered with dimensions in accordance with ISO 3547-1 and made from materials in accordance
with ISO 3547-4.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
...

INTERNATIONAL ISO
STANDARD 3547-3
Third edition
2017-02
Plain bearings — Wrapped bushes —
Part 3:
Lubrication holes, grooves and
indentations
Paliers lisses — Bagues roulées —
Partie 3: Trous de graissage, rainures de graissage et creux de
graissage
Reference number
©
ISO 2017
© ISO 2017, Published in Switzerland
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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2017 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and units . 1
5 General . 2
6 Lubrication holes . 2
7 Lubrication grooves . 3
7.1 General . 3
7.2 Type M1 . 3
7.2.1 General. 3
7.2.2 Type M1A . 4
7.2.3 Type M1B . 4
7.3 Type M2 . 5
7.3.1 General. 5
7.3.2 Type M2A . 6
7.3.3 Type M2B . 6
8 Lubrication indentations . 6
8.1 General . 6
8.2 Types N1 . 6
8.3 Type N2 . 7
8.4 Type N3 . 8
9 Designation . 9
Bibliography .10
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 on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: w w w . i s o .org/ iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 123, Plain bearings, Subcommittee SC 3,
Dimensions, tolerances and construction details.
This third edition cancels and replaces the second edition (ISO 3547-3:2006), which has been technically
revised.
A list of all the parts in the ISO 3547 series can be found on the ISO website.
iv © ISO 2017 – All rights reserved

INTERNATIONAL STANDARD ISO 3547-3:2017(E)
Plain bearings — Wrapped bushes —
Part 3:
Lubrication holes, grooves and indentations
1 Scope
This document specifies dimensions of lubrication holes, grooves and bore indentations on wrapped
bushes made of mono and multi-layer bearing material for plain bearing applications.
NOTE Wrapped bushes with lubrication holes, grooves or bore indentations in accordance with this
document can be ordered with dimensions in accordance with ISO 3547-1 and made from materials in accordance
with ISO 3547-4.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
...