Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Seiji Shimizu0
Isao Komori0
Date of Patent
December 12, 2006
0Patent Application Number
108650350
Date Filed
June 9, 2004
0Patent Primary Examiner
Patent abstract
The dynamic bearing device of the invention comprises a housing, a bearing sleeve provided inside the housing, a rotating member rotating relative to the bearing sleeve, and a dynamic bearing portion supporting the rotating member in a non-contact manner by dynamic pressure action of a lubricating fluid generated in a bearing gap between the bearing sleeve and the rotating member. The bearing sleeve has a parent body formed of a sintered metal and a bearing surface facing the bearing gap and formed by a resin layer. The dynamic pressure generating grooves are formed in the resin layer.
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