| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rolling bearing capable of effectively supplying a lubricant in an amount required for cooling to a rolling element and capable of suppressing temperature rise. <P>SOLUTION: This rolling bearing includes an outer ring having an outer ring raceway surface on an inner peripheral surface, an inner ring having an inner ring raceway surface on an outer peripheral surface, the plurality of rolling elements arranged between the outer ring raceway surface and the inner ring raceway surface so as to be freely rolled, and a retainer having a plurality of pockets holding the rolling elements in prescribed intervals along a circumferential direction. The inner ring has a through-hole for supplying the lubricant to the retainer, and the retainer has an annular groove formed in an inside diameter, and a lubricant supply hole formed so as to penetrate from the groove of the retainer to the pocket. <P>COPYRIGHT: (C)2011,JPO&INPIT |
