JPS6435116A - Bearing device - Google Patents
Bearing deviceInfo
- Publication number
- JPS6435116A JPS6435116A JP19172487A JP19172487A JPS6435116A JP S6435116 A JPS6435116 A JP S6435116A JP 19172487 A JP19172487 A JP 19172487A JP 19172487 A JP19172487 A JP 19172487A JP S6435116 A JPS6435116 A JP S6435116A
- Authority
- JP
- Japan
- Prior art keywords
- thrust bearing
- sleeve
- shaft body
- abrasion
- endface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Sliding-Contact Bearings (AREA)
- Rolling Contact Bearings (AREA)
Abstract
PURPOSE:To reduce abrasion of thrust bearing face by forming a spherical thrust bearing secured to one endface of a sleeve from super hard alloy. CONSTITUTION:A thrust bearing, i.e. a spherical body 15, is pressure secured to the axial upper end of a sleeve 12 and faced with the upper endface 10A of a shaft body 10 so as to support the sleeve 12. The shaft body 10 is thermally treated, and the thrust bearing 15 is formed from super hard alloy. An air vent 16 for discharging air in a space between the upper end portion of the shaft body 10 and the thrust bearing 15 is made axially through the inner circumferential face at the upper end portion of the sleeve 12 so as to discharge foam mixed in lubricant. With such arrangement, friction powder is hardly produced in the thrust bearing 15, abrasion is not promoted and abrasion of the bearing face 10A of the shaft body is reduced considerably thus maintaining high axial accuracy for long term.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62191724A JP2504063B2 (en) | 1987-07-31 | 1987-07-31 | Bearing device |
US07/176,038 US4856918A (en) | 1987-03-10 | 1988-03-09 | Bearing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62191724A JP2504063B2 (en) | 1987-07-31 | 1987-07-31 | Bearing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6435116A true JPS6435116A (en) | 1989-02-06 |
JP2504063B2 JP2504063B2 (en) | 1996-06-05 |
Family
ID=16279432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62191724A Expired - Fee Related JP2504063B2 (en) | 1987-03-10 | 1987-07-31 | Bearing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2504063B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004347126A (en) * | 2004-07-28 | 2004-12-09 | Ntn Corp | Dynamic pressure bearing unit |
JP2009257349A (en) * | 2008-04-11 | 2009-11-05 | Mitsubishi Heavy Ind Ltd | Bearing device and rotary machine |
JP2013137082A (en) * | 2011-12-28 | 2013-07-11 | Abico Gijutsu Kenkyusho:Kk | Bearing and grinding device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49127518U (en) * | 1973-03-05 | 1974-11-01 | ||
JPS5854223A (en) * | 1981-09-25 | 1983-03-31 | Nippon Seiko Kk | Spindle device of dynamic pressure type |
JPS59142516U (en) * | 1983-03-14 | 1984-09-22 | キヤノン株式会社 | Hydrodynamic bearing unit |
JPS60179517A (en) * | 1984-02-24 | 1985-09-13 | Canon Inc | Dynamic pressure pneumatic bearing |
-
1987
- 1987-07-31 JP JP62191724A patent/JP2504063B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49127518U (en) * | 1973-03-05 | 1974-11-01 | ||
JPS5854223A (en) * | 1981-09-25 | 1983-03-31 | Nippon Seiko Kk | Spindle device of dynamic pressure type |
JPS59142516U (en) * | 1983-03-14 | 1984-09-22 | キヤノン株式会社 | Hydrodynamic bearing unit |
JPS60179517A (en) * | 1984-02-24 | 1985-09-13 | Canon Inc | Dynamic pressure pneumatic bearing |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004347126A (en) * | 2004-07-28 | 2004-12-09 | Ntn Corp | Dynamic pressure bearing unit |
JP2009257349A (en) * | 2008-04-11 | 2009-11-05 | Mitsubishi Heavy Ind Ltd | Bearing device and rotary machine |
JP2013137082A (en) * | 2011-12-28 | 2013-07-11 | Abico Gijutsu Kenkyusho:Kk | Bearing and grinding device |
Also Published As
Publication number | Publication date |
---|---|
JP2504063B2 (en) | 1996-06-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |