The apparatus for estimating the service life and method for estimation of the service life for a roller bearing

摘要

It is a device for the estimation of the service life of a rolling bearing device, which with an inner and an outer ring and a plurality of rolling elements, which surface between the respective roller surfaces of the inner and of the outer ring are inserted, is equipped, are provided. The apparatus for estimating the service life comprises a projection heights estimate a unit for estimation of the surface of one of the roller surfaces of the inner and of the outer ring, in which the indentation has formed, measured hill height of the indentation from the depth or of the indentation size of the indentation according to a predetermined rule, and a service life estimate a unit for estimation of the service life of the roller bearing structure according to a rule, which as a result of the relationship between the hill height of the estimated indentation and the rate of decrease in the rolling element fatigue life duration and a dynamic equivalent load is determined.