| 摘要 |
A connecting portion 4f to which a pushrod actuating mechanism 7 is connected is provided on an opposite side, to a disc rotor 5, of a bottom wall of a cylinder bore 4e of a caliper body 4 so as to project therefrom. An accommodation bore 4m that accommodates a pushrod 12 and an adjusting bolt 18 is formed in the connecting portion 4f. In forming the caliper body 4, the connecting portion 4f is formed so as to have the same section shapes when taken along a direction perpendicular to an cylinder axial direction. By cutting the connecting portion 4f so that a length of the connecting portion 4f in the cylinder axial direction becomes a predetermined length and processing the connecting portion 4f, a connecting surface 4n to which the pushrod actuating mechanism 7 is connected is formed on the connecting portion 4f.
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