Invention Grant
- Patent Title: Fluid dynamic bearing device
- Patent Title (中): 流体动力轴承装置
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Application No.: US13481282Application Date: 2012-05-25
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Publication No.: US08876388B2Publication Date: 2014-11-04
- Inventor: Hiroshi Niwa , Isao Komori
- Applicant: Hiroshi Niwa , Isao Komori
- Applicant Address: JP Osaka-shi
- Assignee: NTN Corporation
- Current Assignee: NTN Corporation
- Current Assignee Address: JP Osaka-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2006-056543 20060302; JP2006-083379 20060324; JP2006-088698 20060328; JP2006-148749 20060529; JP2006-204716 20060727; JP2006-223455 20060818
- Main IPC: F16C33/02
- IPC: F16C33/02 ; H02K7/08 ; F16C17/02 ; F16C33/14
Abstract:
A fluid dynamic bearing device which exhibits high bearing performance at low cost has a highly accurate bearing gap. At least a region in the outer circumferential surface of a shaft, which faces the radial bearing gap, is constituted of an electroformed part, and the region of the shaft excluding the electroformed part is constituted of a resin portion.
Public/Granted literature
- US20120237148A1 FLUID DYNAMIC BEARING DEVICE Public/Granted day:2012-09-20
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