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One-way clutch

  • US 20100025182A1
  • Filed: 10/11/2007
  • Published: 02/04/2010
  • Est. Priority Date: 10/13/2006
  • Status: Active Grant
First Claim
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1. A one-way clutch comprising:

  • an inner ring and an outer ring;

    a plurality of sprags each having cam surfaces formed to be respectively brought into contact with an outer circumferential surface of said inner ring and an inner circumferential surface of said outer ring;

    a cage having a plurality of pockets formed to accommodate individually said sprags to regulate a mutual position in a circumferential direction of each of said sprags; and

    a ribbon spring that has pockets formed to respectively accommodate said sprags and that urges said sprags in a direction in which said inner ring and said outer ring are locked,wherein a difference in surface hardness between each sprag and each of an inner ring and an outer ring is set to be larger than a hardness of Rockwell C-scale HRC0 and to be equal to or smaller than HRC15.

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