Adjustment assembly for a disc brake.

摘要

An adjustment assembly for a disc brake includes a nut (26) and a threaded stem (28). The threaded stem (281 defines a first diameter portion (72) and a second diameter portion (76) which cooperate to form a differential area sealingly engaging an inwardly extending partition. The partition also forms a passage (88) to cbmmunicate fluid pressure to both portions (72, 76) so that the differential area and pressure communicating passage are compactly arranged at the partition.