| 摘要 |
PROBLEM TO BE SOLVED: To reduce leakage of a lubricant and penetration of a foreign matter by extending a fastening tilted part in the axial direction to the radius directional end part of an outside sleeve and to an opened end side on the opposite side, providing a seal lip on the outer circumference side of an edge part ring on the opened end side, and closing a clearance between the edge part ring and the outside sleeve. SOLUTION: In a cage 3 arranged between a shaft 1 and an outside sleeve 2, an edge part ring 4 and a web 5 are arranged on both end sides. Roller sprags 7 arranged over the overall circumference one by one in a pocket 6 can be locked in a fastening face 8 of the shaft 1 and a fastening tilted part 9 of the outside sleeve 2, and the fastening tilted part 9 reaches a radius directional edge part 10 in the outside sleeve 2 and an opened end side on the opposite side. A seal lip 13 is integrally molded on the outer circumference face directed to the outside sleeve 2 in the edge part ring 4, and a clearance between the edge part ring 4 and the outside sleeve 2 is closed by means of the seal lip 13. Therefore, no foreign matter penetrates into the roller sprag area from a clearance between the cage 3 and the outside sleeve 2, and leakage of a lubricant can be prevented. |
