DISK BRAKE CALIPER

摘要

A caliper (12) for a disk brake (10), capable of reducing its dimensions, comprising pads (14) which are capable of being thrust against opposite braking surfaces of the disk (13). A housing (18) is associated with a body (16) of the caliper (12) and contains operating means (20) for the pads (14). The operating means (20) comprise a screw and nut mechanism (22). A motor (42), comprising a stator (44) and a rotor (46), is mounted within the housing (18) and encloses the nut (22). Reduction gear means (60), which are operatively located between the rotor (46) and the screw and nut mechanism (22), comprise a toothed crown wheel (76) provided with a wall (78) which extends around the screw and nut mechanism (22) and is capable of defining the closure and containment member for the operating means (20) within the cover (38) and at least one seat for at least one roller supporting member (50) for the rotor (46).