| 摘要 |
PROBLEM TO BE SOLVED: To surely fasten a bearing to a shaft by caulking process. SOLUTION: The inner ring member 30 of a bearing has a caulked part 36 having rigidity lower than a body for forming a rolling surface 24. The caulking part 34 of a wheel hub 10 is deformed and brought into contact with the caulked part 36. Since the rigidity of the caulked part 36 is low, this part is deformed so that the rolling surface 24 is never influenced. A protruding part 40 works as a hoop to generate an effective reaction against the load of caulking in the caulked part 36. |
