| 摘要 |
PROBLEM TO BE SOLVED: To manufacture a bearing device provided with each bearing high in reliability with no fear of unevenness in rotation of each rotor wherein each bearing is stably and firmly joined with a housing by means of a simple method. SOLUTION: In a manufacturing method of a bearing device including each bearing formed out of a porous sintered body, and a housing capable of housing each bearing and each rotor supported by each bearing, each aforesaid bearing and the housing 2 are sintered so as to be joined together when sintering and forming each bearing. It is preferable that the sintering is carried out by means of discharge plasma sintering process, and each bearing is perferably formed out of powder material 7 of an average grain size of 1 to 10 mm by means of sintering. The power material 7 formed out of an alloy of Cu-Sn is most preferable.
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