| 摘要 |
In an electromagnetic clutch having a rotating component, groove portions (21a, 21b) are made on a surface of the rotating component to induce air flow during rotation of the rotating component. The air flow enhances radiation of heat from the electromagnetic clutch. It is preferable that the groove portion is formed at each of axial ends of a driving rotor or pulley (12) included as the rotating component in the electromagnetic clutch.
|
