| 摘要 |
<P>PROBLEM TO BE SOLVED: To extend a life of a rolling bearing by preventing biting and accumulation of abrasion powder in a pocket 8 of a retainer 7 in the rolling bearing 1, thereby preventing occurrence of impression or oil film shortage in a roller 6. <P>SOLUTION: A cutout 16 is formed in an inner diameter surface of an annular section 10 of a retainer 7 toward inside from an outer end surface of the retainer 7 in an axial direction thereof. An outer diameter of the cutout 16 is positioned toward an outer diameter side more than a position of an outer diameter-side end of an inner protrusion 11 of the retainer 7. As a result, lubricating oil flows satisfactorily in the axial direction from the inner diameter side of the retainer 7 toward the cutout 16 provided in the annular section 10, and thereby debris such as metallic powder contained in the lubricating oil hardly accumulates at portions of the inner protrusion 11 of a pillar 9. <P>COPYRIGHT: (C)2013,JPO&INPIT |
