| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To realize a structure capable of preventing skewing of a cylindrical roller 4 at a negative skew angle without using a special cage. <P>SOLUTION: The surface roughness of an outer ring raceway track 7a is set to become larger from an inward flange 8 provided at one axial end of the outer ring raceway track 7a toward the other axial end thereof. On the contrary, the surface roughness of an inner ring raceway track 5a is set to become larger from an outward flange 6a provided at one axial end of the inner ring raceway track 5a corresponding to the other axial end of the outer ring raceway track 7a toward the other axial end of the inner ring raceway track 5a. A positive skew moment is generated in the cylindrical roller 4 by traction force effected on a rolling surface of the cylindrical roller 4 from the outer ring raceway track 7a and the inner ring raceway track 5a, thereby solving the above problem. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
