| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure having a sufficient durability under a gravitative load imposed through a rolling bearing retained. SOLUTION: An h, a degree of misalignment between the first virtual plane including an installation surface 4 and the bore of the central axis of a rolling bearing housing 1c; an r, a radius of a cross sectional curvature of the second virtual plane meeting at right angles to the central axis of a cylindrical retainer 2 in a curve section 6; an L, an installation inside diameter of the rolling bearing housing 1c having the closest interval among the portions of the installation surface section 4; and 2R<SB>1</SB>, an outer diameter of the cylindrical retainer 2 are regulated to a specific relationship. Also the curve section 6 shall be a smooth surface. These means alleviate a stress concentration on both of the curve section 6 and solve the problem. COPYRIGHT: (C)2009,JPO&INPIT
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