| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a roller thrust bearing capable of increasing an amount of lubricating oil flowing inside the bearing without degrading a strength of a cage. <P>SOLUTION: First and second cages 30 and 40 include first and second rings 31 and 41 on which first and second pocket holes 37 and 47 approximately rectangular in a radial direction for forming respective pockets are respectively provided at a plurality of circumferential positions, a first inner diameter side cylindrical part 32 formed along an inner periphery of the first ring 31, and a first outer diameter side cylindrical part 33 formed along an outer periphery of the first ring 31. The first ring 31 has a first column 36 between the first pocket holes 37 in a circumferential direction. The first inner diameter side cylindrical part 32 has an inner diameter side notch 34 which passes through the first column 36 linearly in a radial direction. The first outer diameter side cylindrical part 33 has an outer diameter side notch 35 which passes through the first column 36 linearly in a radial direction. An outer space on a side of an inner diameter of the cage, a cavity 60 inside the bearing, and an outer space on a side of an outer diameter of the cage are connected. <P>COPYRIGHT: (C)2013,JPO&INPIT |
