| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive bearing supporting structure for inhibiting the enlargement of a clearance between an inner peripheral face of a bearing boss and an outer peripheral face of a bearing outer face accompanying the rise of temperature of a case made out of light alloy. SOLUTION: This bearing supporting structure has a first boss 21 mounted at an inner side, a second boss 23 having a center radius larger than that of the first boss 21 and mounted at an outer side of the first boss 21, and a rib 22 connecting the first boss 21 and the second boss 23. The thickness in radial direction of the second boss 23 is larger than that of the first boss 21. COPYRIGHT: (C)2004,JPO
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