| 摘要 |
A self-locking braking device, for rotary shafts connectable to external loads, comprises braking means which can be operated to lock, respectively to release the rotation of a drive shaft; the braking means consist of a rigid braking disk, rotating with the drive shaft, and slidingly supported in an axial direction between two clutch members, one of which is secured to a support body for the drive shaft, while the other clutch member is supported by a plate which is elastically biased against the braking disk and operatively connected to a pneumatic cylinder for releasing the brake.
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