Development of measuring system for radial non-repetitive run-out (NRRO) and perception about present state of angular contact ball bearing for machine tools

This paper deals with the non-repetitive run-out (NRRO) of an angular contact ball bearing for machine tools. First, a measuring system for the rotational accuracy of the bearing was developed. Then, the following results were obtained using the developed measuring system.(1) RO of ball cage rotation increased with rotational speed. fluence of form errors in the inner and outer rings on NRRO was small. fluences of form errors in the balls of the bearing and the diameter difference of balls on NRRO were significant.