| 摘要 |
A follower shaft is rotatably supported coaxially with a driving shaft. An inner rotary permanent magnet having poles in a radial direction is fixed around an outer circumference of the end of the follower shaft. On the inner circumferential surface of a cylindrical coupling, an outer rotary permanent magnet is fixed such that opposite poles face each other between the inner rotary permanent magnet and the outer rotary permanent magnet. A fixed permanent magnet is fixed such that like poles face each other between the fixed permanent magnet and the inner rotary permanent magnet. Thus, rotation of the driving shaft is transmitted to the follower shaft without contact.
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