| 摘要 |
<p>A disc brake (10) having a support member (12) that is secured to a vehicle with first (40) and second (40') bores that are perpendicular to a rotor (34) and a caliper (16) with an actuation.section (18) having a piston (26) for applying an actuation force to move friction members (30,32) into engagement with the rotor (34). A first guide pin (36), affixed to the caliper (16) has a first bearing surface (64) and a second guide pin (36'), affixed to the caliper (16) has a second bearing surface (64') that respectively engage the first bore (40) and second bore (40') in a plane along the center of gravity (c/g) of the caliper (16). The center of gravity (c/g) of the caliper (16) is sustained by compensating for any change in a relationship of a piston (26) and an actuation chamber (28) by adding additional fluid to the actuation chamber (28) on movement of the piston (24) out of the actuation chamber (28) such that an actuation force is always perpendicularly applied to the rotor (34).
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