Title:
BEARING ARRANGEMENT AND SPINDLE MOTOR
Document Type and Number:
Japanese Patent JP2006207753
Kind Code:
A
Abstract:
To provide a bearing arrangement and spindle motor which can improve the motor performance or motor life of the spindle motor.
A bearing arrangement 1 used for the spindle motor is characterized in that a first bearing surface 1c interposed between a rotor 3 fixed to a fixed shaft (shaft 2) and a center void part 1e formed in a radial bearing 1a has a length of 1.2 to 1.8 mm in its axial direction length .
Inventors:
NAKAGAWA HISAYA
TAKIZAWA MICHIAKI
NAKANISHI TORU
KANEKO TAKASHI
TAKIZAWA MICHIAKI
NAKANISHI TORU
KANEKO TAKASHI
Application Number:
JP2005023134A
Publication Date:
August 10, 2006
Filing Date:
January 31, 2005
Export Citation:
Assignee:
NIDEC SANKYO CORP
International Classes:
F16C17/02; F16C17/04; F16C33/12; H02K7/08; H02K21/22
Domestic Patent References:
| JP2002330566A | 2002-11-15 | |||
| JPH05151754A | 1993-06-18 | |||
| JP2004353870A | 2004-12-16 | |||
| JP2000192960A | 2000-07-11 | |||
| JPS62141675A | 1987-06-25 | |||
| JPH0821444A | 1996-01-23 | |||
| JP2001045699A | 2001-02-16 |
Attorney, Agent or Firm:
Kazuhisa Iwanaga
Kentaro Nagata
Kentaro Nagata