| 摘要 |
The invention relates to a hysteresis brake comprising a hysteresis ring (1) which is rotationally fixed to a roller (9), and a magnetic ring with magnetic poles. The magnetic ring (2) is made of permanent magnetic material and is mounted inside the hysteresis ring (1), wherein the magnetic poles are alternately along the external circumference of the magnet ring (2). The magnetic ring (2) encloses a supporting member (4), which is mounted in a rotationally secured position but which can be axially displaced around the axis by means of a regulating device (7).
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