IS 10260 : Part 2 : 2024/ISO 4378-2 : 2017 Plain Bearings - Terms, Definitions, Classification and Symbols - Part 2 Friction and Wear

ICS 01.040.21; 21.100.10

PGD 13

NATIONAL FOREWORD

This Indian Standard (Part 2) (Second Revision) which is identical to ISO 4378-2 : 2017 'Plain bearings - Terms, definitions, classification and symbols - Part 2: Friction and wear' issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Bearings Sectional Committee and approval of the Production and General Engineering Division Council.

This standard was first published in 1982 and subsequently revised in 2017. First revision was based on ISO 4378-2 : 2009 'Plain bearings - Terms, definitions, classification and symbols - Part 2: Friction and wear', issued by the International Organization for Standardization (ISO). This revision has been undertaken to align it with ISO 4378-2 : 2017.

The major changes have been incorporated in this revision are as follows:

a) Thorough editorial revision of the standard has been done;

b) Six new figures have been added; and

c) Clause numbers of the standard have been revised.

This standard has been published in five parts. Other parts in this series are:

Part 1 Design, bearing materials and their properties

Part 3 Lubrication

Part 4 Basic symbols

Part 5 Application of symbols

The text of ISO standard has been approved as suitable for publication as an Indian Standard without deviations. Certain conventions are, however, not identical to those used in Indian Standards. Attention is particularly drawn to the following:

a) Wherever the words 'International Standard' appear referring to this standard, they should be read as 'Indian Standard'; and

b) Comma (,) has been used as a decimal marker while in Indian Standards, the current practice is to use a point (.) as the decimal marker.