| 摘要 |
Disclosed herein is a brake disk. More specifically, the brake disk includes a friction part, a hat part and a plurality of fasteners. The friction part includes a coupling aperture formed at a center thereof, a coupling portion formed along an inner side of the coupling aperture to have a predetermined thickness and a plurality of connecting bores formed in the coupling portion so that the connecting bores are spaced apart from each other and located along a circumference of the coupling portion. The hat part is inserted into the coupling aperture of the friction part and includes a coupling flange corresponding to the coupling portion of the friction part. The coupling flange includes a plurality of connecting bores that correspond to the plurality of connecting apertures. The plurality of fasteners are each horizontally inserted into the connecting apertures and bores to couple the friction part with the hat part.
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