| 摘要 |
<p>PROBLEM TO BE SOLVED: To dissolve a problem wherein face oscillation of an armature is increased, a gap with a magnet assembly is unbalanced, and brake release operation is rendered unstable, in a conventional deenergization operation type electromagnetic brake comprising a magnet assembly with a built-in coil; an armature with a built-in radial ring permanent magnet; and a hub on which the armature is axially displaceably mounted. SOLUTION: A hub 10 and a plurality of drive pins 12 are integrally molded through a rubber integrally molded damper 11, and an armature 13 is coupled to a drive pin 12. Further, a difference in stage for a pre-load is formed the drive pin and the end face of the hub, and when the armature is caulked to a drive pin or when the armature is coupled thereto by means of a bolt, a pre-load is exerted on the armature.</p> |
