| 摘要 |
A reaction force type disk brake includes a brake caliper having first and second clamping arms for clamping therebetween first and second friction pads opposed to opposite sides of a brake disk, and a pair of bridge portions inter-connecting the clamping arms, a window being defined by the clamping arms and the bridge portions. An urging member is provided in the first clamping arm for urging the first friction pad against the brake disk. The friction pads are slidably suspended within the window by a pair of support portions of a stationary bracket. A pair of slide pins are provided in a projecting manner on the support portions and slidably fitted in pin holes made at portions of the first clamping arm connected with the bridge portions. A pair of bag-like raised portions, each having the pin hole therein, are raised on an outer periphery of the first clamping arm in a radial direction of the brake disk and each have one end projecting from an inner surface of the first clamping arm and connected to corresponding one of the bridge portions.
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