| 摘要 |
PROBLEM TO BE SOLVED: To provide a clutch capable of keeping a state of high frictional coefficient.SOLUTION: A bottomed recessed portion 41 is formed on one or both of a contact face of a rotor and a contact face of an armature, and a solid matter 62 of a thermosetting resin, in which iron oxide powder 61 is dispersed, is formed inside of the recessed portion 41. As the iron oxide powder 61 can be held inside of the recessed portion 41 by adhesive force by the thermosetting resin 62, the iron oxide powder 61 can be firmly held inside of the recessed portion 41 in comparison with a case when the iron oxide powder is singly buried inside of the recessed portion 41. Thus the iron oxide powder 61 can be continuously supplied between the contact faces of the rotor and the armature by abrasion of the contact faces, and a state of high frictional coefficient can be continuously kept. |
