NATIONAL FOREWORD

This Indian Standard (Part 3) (First Revision) which is identical with ISO 9448-3 : 2013 ‘Tools for pressing — Guide bushes — Part 3: Form B, ball cage bushes, plain, type 1’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Metal Forming Machines Sectional Committee and approval of the Production and General Engineering Division Council.

This standard was originally published in 2004 identical with ISO 9448-3 : 1991. The current revision of this standard has been undertaken to align with the latest version of the International Standard.

This standard has been issued in several parts. Other parts are:

Part 1 Forms

Part 2 Form A, gliding bushes, plain, type 1

Part 4 Form C, gliding bushes, headed, type 1

Part 5 Form D, ball cage bushes, headed, type 1

Part 6 Form E, gliding bushes, flanged, type 1

Part 7 Form F, ball cage bushes, flanged, type 1

Part 8 Form G, gliding bushes, stepped, type 1

Part 9 Form B, ball cage bushes, plain, type 2

Part 10 Form E, gliding bushes, flanged, type 2

Part 11 Form F, ball cage bushes, flanged, type 2

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’.

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.