Title:
DYBANIC PRESSURE TYPE BEARING UNIT
Document Type and Number:
Japanese Patent JP3539805
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a dynamic pressure type bearing unit that is excellent in economical efficiency, satisfying a span of functional life required.
SOLUTION: A dynamic pressure type bearing unit is one that supported a turning shaft 3 of an electric motor consisting of a rotor 1 and a stator 2 to a housing 5 free of rotation with a sleeve 4 being composed of a resin constituent. An inner circumferential surface of the sleeve 4 is formed into a three circular surface form having composed three circular surfaces, and further a thin film consisting of oils and fats is formed these.
Inventors:
Kosuke Yamamoto
Mori Natsuhiko
Masakazu Hirata
Mori Natsuhiko
Masakazu Hirata
Application Number:
JP24732395A
Publication Date:
July 07, 2004
Filing Date:
September 26, 1995
Export Citation:
Assignee:
ntn corporation
International Classes:
F16C33/20; (IPC1-7): F16C33/20
Domestic Patent References:
| JP2286916A | ||||
| JP7228883A | ||||
| JP56082246A | ||||
| JP47042615B1 | ||||
| JP2021324U |
Attorney, Agent or Firm:
Shogo Ehara
Hideka Tanaka
Yoshiyuki Shiraishi
Hideka Tanaka
Yoshiyuki Shiraishi