BEARING UNIT AND MOTOR USING THE BEARING UNIT

Title:

BEARING UNIT AND MOTOR USING THE BEARING UNIT

Document Type and Number:

WIPO Patent Application WO/2003/027521

Kind Code:

A1

Abstract:

A bearing unit rotatably supporting a shaft (51), comprising a radial bearing (55) for supporting the shaft in radial direction, a thrust bearing (66) for supporting one end of the shaft (51) in thrust direction, and a housing (56) allowing the radial bearing (55) and the thrust bearing (66) supporting the shaft (51) to be disposed therein and viscous fluid (57) to be filled therein, wherein the housing (56) is formed in a closed structure except for a shaft insert hole (65) for inserting the shaft (51) therein, a space (69) formed between the outer peripheral surface of the shaft (51) and the inner peripheral surface of the shaft insert hole (65) is formed such that can prevent the viscous fluid (57) filled in the housing (56) from leaking to the outside of the housing (56), and the housing (56) is integrally formed by using a synthetic resin formed body.

Inventors:

SHISHIDO YUJI (JP)
YAZAWA KENICHIRO (JP)
KATO SHINICHIRO (JP)
KIKUCHI SHUICHI (JP)
UJIIE TORU (JP)

Application Number:

PCT/JP2002/009360

Publication Date:

April 03, 2003

Filing Date:

September 12, 2002

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SONY CORP (JP)
SHISHIDO YUJI (JP)
YAZAWA KENICHIRO (JP)
KATO SHINICHIRO (JP)
KIKUCHI SHUICHI (JP)
UJIIE TORU (JP)

International Classes:

F16C17/02; F16C17/04; F16C17/10; F16C17/26; F16C29/06; F16C32/06; F16C33/10; F16C33/20; F16C35/02; G11B19/20; H02K5/16; H02K7/08; (IPC1-7): F16C33/10; F16C17/10; F16C33/20; F16C35/02; H02K7/08; H02K21/22; H02K5/167

Domestic Patent References:

WO2000065591A1

2000-11-02

Foreign References:

JP2001050251A	2001-02-23
JP2000060063A	2000-02-25
JPS63125517U	1988-08-16
JP2001173656A	2001-06-26
JP2001082458A	2001-03-27
JP2001065577A	2001-03-16
JPH07229514A	1995-08-29
JPH1142514A	1999-02-16
JPH10159854A	1998-06-16
JPH02113006U	1990-09-10
JP2001041243A	2001-02-13
JP2000004556A	2000-01-07
JPH10259820A	1998-09-29

Attorney, Agent or Firm:

Koike, Akira (Yamato Seimei Bldg. 1-7 Uchisaiwai-cho 1-chome Chiyoda-ku, Tokyo, JP)

Download PDF:

View/Download PDF PDF Help

Previous Patent: PASSIVE AND ACTIVE MAGNETIC BEARING BY USING THE LORENTZ FORCE

Next Patent: METHOD FOR PRODUCING A METAL BASE MATERIAL PROVIDED WITH A SLIDING LAYER, AND THE USE THEREOF