| 摘要 |
PROBLEM TO BE SOLVED: To provide a snap cage that can be manufactured without requiring such a high manufacturing technology as one required for a case using a PEEK material, that has a performance similar to that of a case using a PEEK material and can assemble balls without producing any cracks at all.SOLUTION: A snap cage 20 comprises an annular base part 22, a plurality of pockets 24 passing through the cage in its radial direction and having openings at one side in a cage axial direction, and a pair of horns 26 positioned at both peripheral direction sides of the opening of each of the pockets 24. The inner peripheral surface of the pocket 24 comprises a spherical surface portion 28 positioned inside the cage in its radial direction and a cylindrical portion 30 positioned outside the cage in its radial direction, and an inner diameter &phgr;D2 of the cylindrical portion 30 is larger than a ball diameter dw. |
