| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressed cage for a roller bearing for setting an optimum dimension of a column part of the cage for solving various kinds of problems in a conventional technique because a shape and dimensional setting of a swelled part are not fixed in particular and making the cage have high performance, enhancing productivity of the cage. SOLUTION: When the column part 8 is viewed from the radial direction, joint parts 13a, 13b, 14a and 14b having angles from parts 15a, 15b and 16 for guiding a roller 3 in the circumferential direction to parts 11a and 11b which are not along an axial center 9 of the roller 3 are provided. In the column part 8, anglesθin the joint parts 13a, 13b, 14a and 14b are set to 45 deg. to 80 deg. for the axial center 9 of the roller 3 to secure optimum set values from the viewpoint of working of the cage and performance of the cage.
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