| 摘要 |
PROBLEM TO BE SOLVED: To provide a pulley which can reduce stress generated in each caulking portion abutting against a bearing in the axial direction. SOLUTION: Since each caulking portion 10g is provided between two lines (in a region of an angleα) extending from the center axis of the pulley 10 to pass both circumferential ends of each through hole 10d, when power is transmitted to an outer peripheral portion 10a so that force is applied to a radial extension portion 10b, the force is locally applied to a portion between the through holes 10d (in a region of an angleβ) in the radial extension portion 10b. However, the local force applied in the region of the angleβdoes not act on each caulking portion 10g, so that it is possible to reduce the stress generated in each caulking portion 10g. COPYRIGHT: (C)2007,JPO&INPIT
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