Rolling bearings. Load ratings for hybrid bearings with rolling elements made of ceramic Static load ratings

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

11-01-2018

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Static load rating
6 Static equivalent load
7 Static safety factor
Annex A (informative) - Calculation of the Hertzian
        parameters for point contact
Annex B (informative) - Guide values of the factor
        f[0] for ball bearings
Annex C (informative) - Discontinuities in the
        calculation of basic static load ratings
Annex D (informative) - Material properties and
        material classification
Bibliography

Defines methods of calculating the static load ratings for hybrid bearings with bearing rings made of contemporary, commonly used, high quality hardened bearing steel, in accordance with good manufacturing practice, and a full set of rolling elements made of silicon nitride (Si[3]N[4]) in contemporary, commonly used material and manufacturing quality.

This document specifies methods of calculating the static load ratings for hybrid bearings with bearing rings made of contemporary, commonly used, high quality hardened bearing steel, in accordance with good manufacturing practice, and a full set of rolling elements made of silicon nitride (Si₃N₄) in contemporary, commonly used material and manufacturing quality. For balls, ISO26602,^[⁴^] together with ISO3290‑2,^[¹^] is applicable. For rollers, ISO12297‑2^[²^] is applicable, and ISO26602^[⁴^] is applicable in an analogous way.

For applications where hybrid bearings are used, guideline values of the static safety factor, S₀, according to Table1 and Table2 are observed.

Committee	MCE/7
DevelopmentNote	Supersedes 17/30347196 DC. (01/2018)
DocumentType	Standard
Pages	22
PublisherName	British Standards Institution
Status	Current

Standards	Relationship
ISO 20056-2:2017	Identical

ISO 5593:1997	Rolling bearings Vocabulary
ISO/TR 10657:1991	Explanatory notes on ISO 76
ISO 3290-2:2014	Rolling bearings Balls Part 2: Ceramic balls
ISO 76:2006	Rolling bearings Static load ratings
ISO 26602:2017	Fine ceramics (advanced ceramics, advanced technical ceramics) — Silicon nitride materials for rolling bearing balls and rollers

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BS ISO 20056-2:2017

Rolling bearings. Load ratings for hybrid bearings with rolling elements made of ceramic Static load ratings

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Abstract

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