| 摘要 |
The pin type disc brake in which a guide pin is inserted from a boss hole of a second extension arm of a caliper to a boss hole of a first extension arm thereof, the guide pin has a threaded end to which a nut is screwed, a member for preventing the guide pin from moving along the axis of the disc is fitted in a recessed portion formed on the first extension arm of the caliper, and a member for preventing the guide pin from rotating is abutted against a flat surface of an abutment portion formed on the first extension arm of the caliper.
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