ICS 25.060.20                          PGD 35

Reaffirmed 2021

NATIONAL FOREWORD

This Indian Standard (Part 4) which is identical with ISO 702-4 : 2004 ‘Machine tools — Connecting dimensions of spindle noses and work holding chucks — Part 4: Cylindrical connection’ issued by the International Organization for Standardization (ISO) was adopted by the Bureau of Indian Standards on the recommendation of the Machine Tools, Machine Tool Elements and Holding Devices Sectional Committee and approval of the Production and General Engineering Division Council.

This standard is published in four parts. The other three parts of this series are:

Part 1 Conical connection

Part 2 Camlock type

Part 3 Bayonet type

The text of ISO Standard has been approved as suitable for publication as an Indian Standard without deviations. Certain terminology and 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.

For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS 2 : 1960 ‘Rules for rounding off numerical values (revised)’. The number of significant places retained in the rounded off values should be the same as that of the specified value in this standard.