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Title:
FLUID BEARING DEVICE, SPINDLE MOTOR HAVING THE SAME AND RECORDING AND REPRODUCING DEVICE
Document Type and Number:
Japanese Patent JP2009197996
Kind Code:
A
Abstract:

To provide a fluid bearing device, a spindle motor having the same and a recording and reproducing device, enabling extended service life thereof, by holding a sufficient quantity of lubricating fluid supplied to a bearing part in a microscopic clearance, while satisfying a request for thinning.

This fluid bearing device 20 rotates a rotation side member such as a rotor hub 15 with a shaft 12 inserted into a bearing hole 11a of a sleeve 11 in a rotatable state as the rotational center. The fluid bearing device 20 includes a plurality of substantially annular ring-shaped tapered seal parts (a first tapered seal part 21 and a second tapered seal part 22) for holding the lubricating fluid 26 outside in the radial direction of the sleeve 11.


Inventors:
Uenosono, Kaoru
Yoshitsugu, Takao
Application Number:
JP2008000195513
Publication Date:
September 03, 2009
Filing Date:
July 29, 2008
Export Citation:
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Assignee:
PANASONIC CORP
International Classes:
F16C17/10; F16C33/74; G11B19/20; H02K7/08
Attorney, Agent or Firm:
新樹グローバル・アイピー特許業務法人