計器用精密軸受における軸心の振れまわり : 軸心の振れまわりに及ぼす軌道形状誤差の影響

概要

論文の詳細を見る
Instrument precision bearings which are small-sized precision ball bearings are widely applied to precision instruments and mechanical devices such as hard-disk drive, video head and others. All such precision instruments demand high rotating accuracy of the bearings, because the accuracy of the bearings affect the performance of the instruments. O. Gustafsson found that the axis of ball bearing were moved in circular by the form-error of a raceway groove in 1961. However, the bearing axis shows complicated pattern of movement in practice. In order to clarify the cause of movement of bearing axis, we studied on the rotating accuracy of bearings related to the the form-error of the raceway groove of bearings using a theoretical model. And, we obtained various kinds of Lissajous figure of the bearing axis run-out which were similar to complicated patterns observed in practice. From this calculating result, we found that the form-error of raceway groove causes some kind of bearing axis run-out including non-repeatable run-out. And further, we derived the quantitative relations between bearing axis run-out and form-error of raceway groove.
湘南工科大学の論文
1999-03-25