| 摘要 |
PURPOSE:To improve a degree of stability against vibration, by laying each of hollow rings dislocating its open hole center from the ring center, one after another in the axial direction, and forming them in a way of making a distance from each ring center to the edge of an open hole dislocate the larger point in the circumferential direction each other. CONSTITUTION:Three bearing rings 9-11 are machined each in eccentric as far as epsilon at an inside radius (R) and assembled with this eccentric extent dislocated as mcuh as an optional angle. Like this, each of hollow rings dislocating its open hole center from the ring center is plurally laid one after another in the axial direction and formed in a way of making a distance from each ring center to the edge of an open hole dislocate the largest point in the circumferential direction each other. Doing like this, as compared with a case that plural rings are concentrically machined, stability against an unstable vibration is improved ever so better in the case where the radial load of a bearing is small enough. |
