Title:
FLUID DYNAMIC BEARING DEVICE AND MOTOR EQUIPPED WITH IT
Document Type and Number:
Japanese Patent JP2006207774
Kind Code:
A
Abstract:
To provide a fluid dynamic bearing device manufacturable at low cost and having excellent bearing performance.
A region which becomes a radial bearing face A forming a radial bearing clearance between a bearing sleeve 8 and an outer peripheral face 2a of a shaft part 2 is formed on the outer peripheral face 2a of the shaft part 2 by a collection body of minute amount of ink 14. A projecting part B is formed between the radial bearing face A on the outer peripheral face 2a of the shaft part 2 and a fixed region 2b in a hub part. The hub part 9 is insert-molded by resin using the shaft part 2 in which the region that becomes the radial bearing face A and the projecting part B are formed on the outer peripheral face 2a as an insert part.
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Inventors:
MATSUI ARIHITO
ITO KENJI
ITO KENJI
Application Number:
JP2005024138A
Publication Date:
August 10, 2006
Filing Date:
January 31, 2005
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16C17/10; F16C33/14; G11B19/20; H02K7/08
Attorney, Agent or Firm:
Shogo Ehara
Hideka Tanaka
Yoshiyuki Shiraishi
Kunihiko Shiromura
Tsuyoshi Kumano
Hiroaki Yamane
Hideka Tanaka
Yoshiyuki Shiraishi
Kunihiko Shiromura
Tsuyoshi Kumano
Hiroaki Yamane
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