| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a roller bearing cage of which each spacer is hard to slip off and that has excellent assemblability. <P>SOLUTION: A cage is formed of a plurality of spacers 30 that are arranged along a circumference of the same circle. Each spacer 30 includes: a first pillar 51, a second pillar 52, and a third pillar 53 extending in an axial direction of the circle and located at intervals from each other; a first coupling part 57 that couples an end of the first pillar 51 in an axial direction to an end of the second pillar 52 in an axial direction; and a second coupling part 58 that couples the other end of the second pillar 52 in the axial direction to the other end of the third pillar 53 in an axial direction. The first pillar 51, the second pillar 52, and the first coupling part 57 define a first pocket 80 that is open at the other side in the axial direction, and the second pillar 52, the third pillar 53 and the second coupling part 58 define a second pocket 81 that is open at one side in the axial direction. <P>COPYRIGHT: (C)2012,JPO&INPIT |
