Method and apparatus for the detection of defects in the raceways of bearing shells and in the rolling elements of ceramic hybrid bearings

摘要

This invention relates to a method and an apparatus for the detection of defects in the raceways of bearing shells and the rolling elements of ceramic hybrid bearings. In order to enable the detection of such defects without falsifying the measuring values of the ceramic hybrid bearings installed, the present invention provides that the outer or inner ferromagnetic bearing shell (outer ring 11 or inner ring 12, respectively) of the ceramic hybrid bearing (10) is magnetically coded in at least a partial area (14) and that the magnetic coding of the bearing shell (outer ring 11 or inner ring 12, respectively) is used as generator for testing the raceways of the bearing shells (outer ring 11 or inner ring 12, respectively) and the ceramic rolling elements (ceramic balls 13) by means of inverse magnetostriction.