| 摘要 |
PROBLEM TO BE SOLVED: To materialize long life by standing high vibrations and high load derived from the high velocity revolution while achieving remarkable miniaturization by reducing width dimensions of a bearing without reducing the diameter of a spherical rolling element. SOLUTION: An inner ring raceway 11a and an outer ring raceway 12a on one row, and an inner ring raceway 11b and an outer ring raceway 12b on the other row, are formed to be contacted with each other in the center part so that a spherical rolling element 13a on one row is inserted in a rolling space for a spherical rolling element 13b on the other row. The spherical rolling element 13a on one row and the spherical rolling element 13b on the other row are mutually overlapped when being seen from the radial direction of the bearing 15. COPYRIGHT: (C)2004,JPO&NCIPI
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