ISO-1281-2 › Rolling bearings - Explanatory notes on ISO 281 - Part 2: Modified rating life calculation, based on a systems approach to fatigue stresses

ISO-1281-2 - 1ST EDITION - CURRENT


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 1ST EDITION - Dec. 1, 2008
 1ST EDITION CORRIGENDUM 1 - Oct. 1, 2009

ISO 281:2007 introduced a life modification factor, aISO, based on a systems approach to life calculation, in addition to the life modification factor, a1.These factors are applied in the modified rating life equation, Lnm = a1aISOL10. The modification factor for reliability, a1, for a range of reliability values, is given in ISO 281:2007 as well as the method for evaluating the modification factor for systems approach, aISO. L10 is the basic rating life.

ISO/TR 1281-2:2008 gives supplementary background information regarding the derivation of a1 and aISO.

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Document Number

ISO/TR 1281-2:2008

Revision Level

1ST EDITION

Status

Current

Publication Date

Dec. 1, 2008

Committee Number

ISO/TC 4/SC 8