| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing wherein an electrocast part and a resin-formed part are firmly fastened. SOLUTION: Fine grains 6 are scattered and held in the electrocast part 4, and the fine grains 6 exposed on the outside peripheral surface 4a2 of the electrocast part 4 are fused to be integrated with the resin-formed part 5 to form micro-protrusions 60. These micro-protrusions 60 are embedded in fine-grain pitting 4c formed in the electrocast part 4 to generate anchor effects. Thus, the fastening of the electrocast part 4 to the resin-formed part 5 can be enhanced. COPYRIGHT: (C)2009,JPO&INPIT |
