ISO 12297-2:2018

INTERNATIONAL ISO
STANDARD 12297-2
First edition
2018-03
Rolling bearings — Cylindrical
rollers —
Part 2:
Boundary dimensions, geometrical
product specifications (GPS) and
tolerance values for ceramic rollers
Roulements — Rouleaux cylindriques —
Partie 2: Dimensions d'encombrement, spécification géométrique des
produits (GPS) et valeurs de tolérance pour rouleaux en céramique
Reference number
ISO 12297-2:2018(E)
©
ISO 2018

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ISO 12297-2:2018(E)

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ii © ISO 2018 – All rights reserved

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ISO 12297-2:2018(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 1
5 Dimensions . 3
6 Tolerances . 7
7 Material . 8
Annex A (informative) Roller diameter gauges and sorting principles . 9
Annex B (informative) Roller length tolerances, gauges and sorting principles .11
Annex C (informative) Examples of imperfection types and methods of inspection .13
Bibliography .15
© ISO 2018 – All rights reserved iii

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ISO 12297-2:2018(E)

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
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