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Norm

ISO 281:2007

Issue date: 2007 02 22

Rolling bearings — Dynamic load ratings and rating life

ISO 281:2007 specifies methods of calculating the basic dynamic load rating of rolling bearings within the size ranges shown in the relevant ISO publications, manufacture...
Valid
Publisher:
International Organization for Standardization
Format:
Digital | 51 Pages
Language:
English

ISO 281:2007 specifies methods of calculating the basic dynamic load rating of rolling bearings within the size ranges shown in the relevant ISO publications, manufactured from contemporary, commonly used, high quality hardened bearing steel, in accordance with good manufacturing practice and basically of conventional design as regards the shape of rolling contact surfaces.

ISO 281:2007 also specifies methods of calculating the basic rating life, which is the life associated with 90 % reliability, with commonly used high quality material, good manufacturing quality and with conventional operating conditions. In addition, it specifies methods of calculating the modified rating life, in which various reliabilities, lubrication condition, contaminated lubricant and fatigue load of the bearing are taken into account.

ISO 281:2007 does not cover the influence of wear, corrosion and electrical erosion on bearing life.

ISO 281:2007 is not applicable to designs where the rolling elements operate directly on a shaft or housing surface, unless that surface is equivalent in all respects to the bearing ring (or washer) raceway it replaces.

ISO 281:2007
2007 02 22
Rolling bearings — Dynamic load ratings and rating life
Norm
ISO 281:1990/Amd 1:2000
2000 02 24
Rolling bearings — Dynamic load ratings and rating life — Amendment 1
Norm
ISO 281:1990/Amd 2:2000
2000 02 17
Rolling bearings — Dynamic load ratings and rating life — Amendment 2: Life modification factor aXYZ...
Norm
ISO/TS 16799:1999
1999 12 16
Rolling bearings — Dynamic load ratings and rating life — Discontinuities in the calculating of basi...
Technische Regel
ISO 281:1990
1990 11 22
Rolling bearings — Dynamic load ratings and rating life
Norm
ISO 281-1:1977
1977 03 01
Rolling bearings — Dynamic load ratings and rating life — Part 1: Calculation methods
Norm
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