| 摘要 |
A one-way clutch includes: an inner race; an outer race; a plurality of engaging members disposed between the inner and the outer races; a pair of retainers for retaining the engaging members; springs for urging the engaging members in one direction; and a pair of end bearings which are respectively disposed on both sides between the inner race and the outer race, each of the end bearings being formed into a U-shaped cross section by a first hollow cylindrical portion fitted to an outer peripheral surface of the inner race, a second hollow cylindrical portion fitted to an inner peripheral surface of the outer race, and an annular portion connecting the first and the second hollow cylindrical portions. The one-way clutch is characterized in that recessed portions (11) are formed at least in the inner peripheral surface (8a) of the first hollow cylindrical portion (8) of each of the end bearings (7).
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