| 摘要 |
PROBLEM TO BE SOLVED: To provide a power transmission device capable of reducing vibration and noise, capable of increasing maximum transmission torque, and capable of increasing the speed reduction ratio, without leaking lubricating oil and abrasion dust from a seal part of a shaft. SOLUTION: This power transmission device has a mechanical power transmission mechanism in a case 100, and is provided for transmitting input-output rotation to an external part of the case, and is constituted so that any one or both of an input shaft 140 and an output shaft 150 transmit the input-output rotation with the mechanical power transmission mechanism arranged in the case 100 via a magnetic coupling having a partition wall in a clearance between opposed magnets, and has a structure for sealing the mechanical power transmission mechanism without a sliding part. COPYRIGHT: (C)2009,JPO&INPIT
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