Patent ID: 6769524
Filing Date: 2004-08-03
Classification: B60K,F16D

Abstract:
A rotation transmission device comprising:an inner member; an outer member concentrically mounted with respect to said inner member so as to form an annular space between said inner member and said outer member; a housing supporting said inner member and said outer member via a bearing; a retainer mounted in said annular space and having a plurality of pockets spaced apart in a circumferential direction of said retainer; engaging elements mounted in said pockets of said retainer; an electromagnetic clutch operable to change a phase of said retainer relative to at least one of said inner member and said outer member so that said engaging elements engage and disengage said inner member and said outer member; and a sealing device between said housing and at least one of said inner member and said outer member so as to prevent entry of foreign matter into said rotation transmission device, said sealing device being recessed from an end face of said housing.