ISO 12130-3:2020

Plain bearings — Hydrodynamic plain tilting pad thrust bearings under steady-state conditions — Part 3: Guide values for the calculation of tilting pad thrust bearings

This document specifies guide values for the calculation of tilting pad thrust bearings as described in ISO 12130-1. The empirical values given can be modified for specific fields of application. This document is not applicable to heavily loaded tilting pad thrust bearings.

Paliers lisses — Butées hydrodynamiques à patins oscillants fonctionnant en régime stationnaire — Partie 3: Paramètres opérationnels admissibles pour le calcul des butées à patins oscillants

General Information

• Status: Published
• Publication Date: 16-Feb-2020
• ICS: 21.100.10 - Plain bearings
• Technical Committee: ISO/TC 123/SC 8 - Calculation methods for plain bearings and their applications
• Drafting Committee: ISO/TC 123/SC 8 - Calculation methods for plain bearings and their applications
• Current Stage: 6060 - International Standard published
• Start Date: 17-Feb-2020
• Due Date: 31-Oct-2020
• Completion Date: 17-Feb-2020

Relations

• Revises: ISO 12130-3:2001 - Plain bearings — Hydrodynamic plain tilting pad thrust bearings under steady-state conditions — Part 3: Guide values for the calculation of tilting pad thrust bearings
• Effective Date: 23-Apr-2020

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 12130-3
Second edition
2020-02
Plain bearings — Hydrodynamic plain
tilting pad thrust bearings under
steady-state conditions —
Part 3:
Guide values for the calculation of
tilting pad thrust bearings
Paliers lisses — Butées hydrodynamiques à patins oscillants
fonctionnant en régime stationnaire —
Partie 3: Paramètres opérationnels admissibles pour le calcul des
butées à patins oscillants
Reference number
ISO 12130-3:2020(E)
©
ISO 2020

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ISO 12130-3:2020(E)

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© ISO 2020
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ii © ISO 2020 – All rights reserved

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ISO 12130-3:2020(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Guide values to avoid damage caused by wear . 1
5 Guide values to avoid mechanical overloading . 3
6 Guide values to avoid thermal overloading . 3
Bibliography . 5
© ISO 2020 – All rights reserved iii

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ISO 12130-3:2020(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.
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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 123, Plain bearings, Subcommittee SC 8,
Calculation methods for plain bearings and their applications.
This second edition cancels and replaces the first edition (ISO 12130-3:2001), of which it constitutes a
minor revision. The changes compared to the previous edition are as follows:
— adjustment to ISO/IEC Directives, Part 2:2018;
— correction of typographical errors.
A list of all parts in the ISO 12130 series can be found on the ISO website.
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 2020 – All rights reserved

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ISO 12130-3:2020(E)

Introduction
In order for tilting pad thrust bearings calculated in accordance with ISO 12130-1 to be sufficiently
reliable in operation, it is necessary that the calculated operational parameters h , T or T and p do
min B 2
not fall below or exceed the guide values h , T and p .
lim lim
lim
For limiting cases at high specific loads and/or high rotational frequencies, more accurate calculations
are necessary taking into consideration thermal, elastic, hydrodynamic and/or turbulence effects.
The guide values represent limiting values in the tribological system plain bearing unit which are
dependent on geometry and technology. These are empirical values which give still sufficient reliability
in operation even when subjected to slight disturbing influence as shown in ISO 12130-1:2001, Clause 4.
© ISO 2020 – All rights reserved v

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INTERNATIONAL STANDARD ISO 12130-3:2020(E)
Plain bearings — Hydrodynamic plain tilting pad thrust
bearings under steady-state conditions —
Part 3:
Guide values for the calculation of tilting pad thrust
bearings
1 Scope
This document specifies guide values for the calculation of tilting pad thrust bearings as described in
ISO 12130-1.
The empirical values given can be modified for specific fields of application.
This document is not applicable to heavily loaded tilting pad thrust bearings.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
4 Guide values to avoid damage caused by wear
Explanation of the symbols and examples of calculation can be found in ISO 12130-1.
To achieve minimum wear and low susceptance to failure, ensure full lubrication of the plain bearing
unit by taking into acco
...