| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rolling bearing in which grease base oil immersed from grease when the bearing is used under a high-temperature condition can be discharged to an outer ring lower part, the grease is suppressed from slipping down on an outer ring inner diameter surface by external vibration, and thereby the major scale biting of the grease is suppressed to prevent an increase in bearing temperature, and the discharged grease base oil is supplied to a rolling surface to maintain a stable lubrication state of the bearing at low cost. <P>SOLUTION: The rolling bearing includes a plurality of rolling elements 3 between the outer ring 2 and the inner ring 1, and a retainer 4 which keeps circumferential intervals of the plurality of rolling elements 3 constant. A grease base oil passing groove is formed on an inner diameter surface of an outer ring center along a circumferential direction, and a grease base oil reservoir is formed on the outer ring inner diameter surface. <P>COPYRIGHT: (C)2013,JPO&INPIT |
