| 摘要 |
PROBLEM TO BE SOLVED: To simultaneously achieve the weight reduction, the cost reduction, and the strengthening of a disc hub which has a detent hole for mounting of a clamper. SOLUTION: The disc hub 12 has a detent hole 16 for mounting of a clamper 3 for fixing a disc D, and a resin molded part 14 which is injection-molded, with a core bar 13 inserted. A circumferentially partial inner face of the detent hole 16 is constituted of the peripheral face 13a2 of the thick part 13a of the core bar 13. COPYRIGHT: (C)2009,JPO&INPIT
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