| 摘要 |
<p>PURPOSE:To make an accurate clutching operation achievable by making such a foreign substance as grease or the like so as not to be penetrated into a connecting part of a single plate type electromagnetic clutch from the outside. CONSTITUTION:A first bearing 4 lying between a driven gear 3 and a hub 5 rotated by a driving gear and a second bearing 6 lying between a body part 7 and the driven gear 3 both are used as a sealing type ball bearing, whereby, a closed structure is formed up by those of body part 7, second bearing 6, driven gear 3, first bearing 4, hub 5 and a driven shaft 9, through which such a foreign substance as grease or the like is made so as not to be penetrated into a connecting part consisting of the hub 5, an armature 8 and a space S1 from the outside.</p> |
