Experimental Analysis of the NRRO of the Components of Retainer Rotation in Consideration of Disposition of Balls in a Ball Bearing

摘要

The non repetitive run-out (NRRO) value of the components of retainer rotation is mainly caused by the diameter differences of balls contained in one bearing. Additionally when more than one ball has diameter differences, the NRRO value of the components of retainer rotation is influenced by their disposition. In this paper, we experimentally analyzed the NRRO value of the components of retainer rotation in consideration of the disposition of balls in one bearing. It was clear that the NRRO value of the components of retainer rotation was varied even if the diameter differences of balls were almost same.