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 document 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).

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This document was prepared by Technical Committee ISO/TC 123, Plain bearings, Subcommittee SC 6, Terms and common items.

This fourth edition cancels and replaces the third edition (ISO 4378‑2:2017), which has been technically revised.

The main changes are as follows:

— editorial revision of the document: instead of referencing the parts in the figure by subclause number, the part numbers have been used and the names in the key have been shown;
— addition of Bibliography and an alphabetical index.

A list of all parts in the ISO 4378 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.

BS ISO 4378-2:2024

Plain bearings. Terms, definitions, classification and symbols - Friction and wear

Current

Published:

30 Nov 2024