| 摘要 |
The present invention relates to a steering head set of bicycle, which compr ises an upper and a lower cup kits, which includes two bearing cups, a cap and a plu gging adapter ring at least; wherein, the bearing cup is to set several balls into an insi de cup face of a bearing collar along the inner ball track with the outer race of a cone ring , in combining, a retainer ring jam into the inner cup face of the bearing collar nearing the rim of open end to locate above-mentioned parts into the bearing collar as an integrated com ponent; the cap has an inner and an outer collars corresponding to the cone ring of the bearing cup in the upper cup kit, in which the inner collar forms an outside taper face for retaining on the inside cone face of the cone ring, and several axial open slots along the ed ge of the open; the plugging adapter ring has a taper face formed on the outside head for re taining on the inside cone face of the cone ring of the bearing cup in the lower cup kit, a nd several axial open slots along the edge of the open; in combining, the two bearing cups ar e fixed on the steering tube from both ends respectively, co-operating with the cap and the plugging adapter ring pressing down from the both ends separately, the shaft tube of the front fork is held on excepting swivelling.
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