| 摘要 |
PROBLEM TO BE SOLVED: To provide a tapered roller bearing with a high-quality cage which can be stably manufactured into a compact figure by a molding device and on the large-diameter side of which a hitching structure can be formed to engage with a bearing inner ring while preventing strength degradation and stress concentration, and to provide a manufacturing method for the tapered roller bearing cage which can be used for the tapered roller bearing. SOLUTION: The tapered roller bearing has a large-diameter side annular portion 34a, a small-diameter side annular portion 34b, and columnar portions 34c connecting the large-diameter side annular portion 34a to the small-diameter side annular portion 34b. Tapered rollers 23 are stored in pockets 34d formed between the peripherally adjacent columnar portions, and the large-diameter side annular portion can engage with the tapered roller inner ring 21 via a hitching structure part M. The molding device has a pocket forming core 43 for molding the pockets 34d between the peripherally adjacent columnar portions. The pocket molding core 43 can be put in and out in the directions of the inner and outer diameters. COPYRIGHT: (C)2009,JPO&INPIT
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