DEVICE FOR ESTIMATING SERVICE LIFE AND METHOD FOR ESTIMATING SERVICE LIFE OF ROLLING BEARING

摘要

A device for estimating the service life of a rolling bearing has: a swelling height estimation means (7) for estimating swelling height from the impression rolling surface in accordance with established rules on the basis of impression depth or impression size; and a service life estimation means (8) for estimating the service life of rolling bearings in accordance with established rules from the relationship between the estimated impression swelling height and the reduction in rolling fatigue service life and from the equivalent load. The service life estimation means calculates the service life of a rolling bearing using an impression correction coefficient that corresponds to contact pressure.