| 摘要 |
PROBLEM TO BE SOLVED: To reduce the wear and torque of a cage and reduce torque by technically controlling the swing operation of rolling elements. SOLUTION: In pocket parts 7 holding the rolling elements 5, the cage comprises only one axial pocket face and the opposite face is opened. The axial pocket faces are arranged aslant to the axial opposite sides to each other correspondingly to the orientation of the inclination of the rolling elements assembled in the circumferential direction in a crossed state. The cage 6 comprises an outer diameter 6a having a dimension larger than the diameter of an intersection between the rotating center axis 5c (line formed by extending the center of the rolling elements) of the rolling elements 5 and the axial pocket face 7b of the pocket part 7 of the cage 6 and an inner diameter 6b having a dimension smaller than the diameter of an intersection between the flat surface parts 5b and the rolling surfaces 5a of the rolling elements 5. COPYRIGHT: (C)2005,JPO&NCIPI
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