| 摘要 |
<P>PROBLEM TO BE SOLVED: To smoothly take lubrication oil from oil supply holes 16 of an outer ring 10 into a roller bearing equipped with rollers 14 which roll on an inner diameter surface of the outer ring 10. <P>SOLUTION: In the outer ring 10 of the roller bearing, collar parts 13 facing inward are formed on the both end parts of the inner diameter surface, a raceway surface 12 is formed on the inner diameter surface between the both collar parts 13, and the oil supply holes 16 are provided to penetrate between the raceway surface 12 and an outer diameter surface. The centers of the oil supply holes 16 are provided to be circumferentially inclined to an axis of the roller bearing. <P>COPYRIGHT: (C)2011,JPO&INPIT |
