| 摘要 |
PROBLEM TO BE SOLVED: To cope with a utilization conditions which differ in an axial load and a rotation condition from the left and the right, in a multipoint contact ball bearing. SOLUTION: This multipoint contact ball beating has an inner race, an outer race and balls interposed between the inner and outer races, has the balls and the inner and outer races set to three-point contact or four-point contact, and alternately operates the axial load of different sizes from bearing both directions, and is characterized in that left and right contact angles α2 and α3 of the radial directional plane Y-Y which is vertical to the axis X-X by passing through the bearing center O are set at different angles; and the larger angle α2 is positioned on the high-load acting side, and the smaller contact angle α3 is positioned on the low-load acting side. |
