| 摘要 |
PROBLEM TO BE SOLVED: To prevent brake noise and judder phenomenon without increase of weight, and to enhance strength. SOLUTION: The front hub (5) is constituted of a deformed trumpet shaped body part (10) attached to a steering knuckle of a front axle (2) and rotatably supporting a brake drum (4), and a flange part (20). In the front hub (5), a surface contact groove (24) is circumferentially provided at a radially outer peripheral side area (21) of the flange part (20) closely contacted with the brake drum (4). A radially inner peripheral side area (23) of the flange part (20) is formed in a flat surface. A cross section area of the inner peripheral side area (23) is formed larger than the cross-sectional area of the outer peripheral side area (21). COPYRIGHT: (C)2005,JPO&NCIPI
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