| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a pulley unit with a one-way clutch, sealing the one-way clutch and a rolling bearing without any increase in width of the bearing. <P>SOLUTION: Rolling bearings 6, 7 are provided on both sides in the axial direction of the one-way clutch 5, and an outer ring of the one-way clutch 5 is held between the outer rings 6a, 7a of both rolling bearings 6, 7. The rolling bearings 6, 7 are one side sealing bearings having sealing seals 8, 9 at the outer end parts, and the end part of a retainer 15 of the one-way clutch 5 is provided with radial inward projecting parts 15a, 15b formed to form a labyrinth seal in a space up to the inner end parts of the inner rings 6b, 7b of the rolling bearings 6, 7. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
