| 摘要 |
The invention relates to a braking device that comprises an electric motor (1) capable of acting with the means (2) for the quick movement of the pads (3) into contact with a disk (4) or a drum, and a magnetostrictive actuator capable of generating a clamping force on the pads and against the disk or the drum. The magnetostrictive actuator comprises at least one winding (5) of a magnetic material on a holder (5a).
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