BS ISO 3290-2:2008

BS ISO 3290-2 specifies requirements for finished silicon nitride balls for rolling bearings.

Foreword

1 Scope

2 Normative references

3 Terms and definitions

4 Symbols

5 Requirements

5.1 Ball size

5.2 Quality of geometry and surface

5.3 Sorting accuracy and ball gauges

6 Material

7 Dimensions and tolerances

Annex A (normative) Method for assessment of deviation from spherical form

Annex B (normative) Illustration of ball gauges and sorting principles

Annex C (informative) Examples of defect types and methods of inspection

Bibliography