| 摘要 |
A brake is disclosed which includes a disc plate is made of a first material, and an insert aperture is formed through the central portion of the disc plate. Coupling depressions are formed around the inner edge of the insert aperture, and a rivet aperture is formed in each of protrusion portions provided between the coupling depressions. A hat part is made of a second material and is inserted into the insert aperture. Coupling protrusions are provided around the outer edge of the hat part. A rivet aperture is formed in each of the coupling protrusions. Straps are disposed such that each strap passes over both the corresponding rivet aperture of the disc plate and the corresponding rivet aperture of the hat part. The rivets are inserted into the corresponding straps and the corresponding rivet apertures to fix the straps, the disc plate and the hat part together.
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