To improve assemblability of a laminated ring with an element, by post-processing hook parts of the element.
The laminated ring 2 formed by laminating endless metallic hoop, and the element (approximate element) 11 including leg pieces 10 are prepared. The leg pieces 10 has a shape in which the hook parts 4 on both sides of a saddle face 3a are opened. In the approximate element 11, as shown in hatched dotted line in the figure (A), high-frequency induction hardening is applied to a portion excluding the leg pieces 10, and the leg pieces are left unhardened. After two rows of the laminated rings 2 are arranged in a recess portion 12 between the right and left leg pieces 10 of the approximate element 11 (B), end parts of the right and left leg pieces 10 are mutually bent inward to form hook parts 4 in a predetermined shape (C), and the laminated rings 2 are housed in the recess portion 5 between the hook parts 4 according to the bending processing.
Miyazaki Yoshio
Kaoru Onozuka
Akio Tagami
High Masahiro
Toshio Nakamura