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Patent Searching and Data


Title:
HYDRODYNAMIC AIR BEARING COVER
Document Type and Number:
WIPO Patent Application WO/2019/082525
Kind Code:
A1
Abstract:
A hydrodynamic air bearing cover (7) for maintaining the air-tightness of a hydrodynamic air bearing which uses hydrodynamic air pressure to suppress fluctuations in a shaft (11), which is the rotational axis of a motor body (1), the cover (7) being equipped with: a cover body (71) provided with a columnar void (73) which is disc-shaped and has a larger diameter than does the shaft (11); and a press-fit part (72) which is provided in the circumference of the disc-shaped lateral surface and maintains the air-tightness of the hydrodynamic air bearing by being press-fit therein.

Inventors:
SASO KYOSUKE (JP)
OKABE TADASHI (JP)
UCHIDA TOSHIYA (JP)
NAKADA YUKI (JP)
Application Number:
PCT/JP2018/033367
Publication Date:
May 02, 2019
Filing Date:
September 10, 2018
Export Citation:
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Assignee:
NIDEC COPAL ELECTRONICS CORP (JP)
International Classes:
H02K5/16; H02K7/08; H02K9/06
Foreign References:
JP2002258200A2002-09-11
JP2012177452A2012-09-13
JP2016164016A2016-09-08
JP2010138895A2010-06-24
JPH0580270A1993-04-02
Attorney, Agent or Firm:
S & S INTERNATIONAL PPC (JP)
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