| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a wheel hub for improving working efficiency in dismounting a wheel while suppressing an increase in the number of manufacturing processes of the wheel hub and occurrence of deviation between rotation centers of a wheel and the wheel hub. <P>SOLUTION: The wheel hub 1 integrally includes a hub shaft portion 2 supported by an axle and a plurality of mating portions 4 disposed on the periphery of the rotary shaft of the hub shaft portion 2 for fitting shaft holes of wheels 5, 6. The outer face 4a of the mating portion 4 is intermittently disposed along a circumferential surface around the rotary shaft of the hub shaft portion 2 and is close to or in contact with inner circumferential surfaces 7a, 8a of shaft holes 7, 8 of wheels 5, 6. The outer face 4a of the mating portion 4 has linear grooves 9 formed thereon, which are extended in the circumferential direction concentric to the rotary shaft of the hub shaft portion 2. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
