| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the lowering of the durability of a roller clutch 10 by preventing creeping between ball bearings 9 and 9 and a driven pulley 7b. <P>SOLUTION: A lock recess groove 23 is formed in the outer circumferential surface 22 of an outer ring 16a. A lock member 24 made of a material whose linear expansion coefficient is larger than that of the outer ring 16a is locked in the lock groove 23. The diametrical thickness of the lock member 24 becomes larger than the depth of the lock recess groove 23 by the temperature rise in being used. This constitution can prevent creeping in the fitting part to prevent the lowering of the durability of the roller clutch 10. <P>COPYRIGHT: (C)2004,JPO |
