| 摘要 |
PROBLEM TO BE SOLVED: To provide a cage for a roller bearing increased in the rigidity in a bent portion. SOLUTION: The cage 13 for the roller bearing includes a pair of annular rings 14, and a plurality of columns 15 for connecting the pair of rings 14 with each other, including a column central section 16 positioned relatively radial inside an axial central region, a pair of column ends 17 positioned relatively radial outside in the axial end region, and a pair of column inclined section 18 positioned between the column central section 16 and the pair of column ends 17. The thickness of each part of the column central section 16, the pair of column ends 17 and the pair of column inclined sections 18 is made smaller than the boundary of adjoining parts. COPYRIGHT: (C)2009,JPO&INPIT
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