JPS5737116A - Spindle device - Google Patents
Spindle deviceInfo
- Publication number
- JPS5737116A JPS5737116A JP11272580A JP11272580A JPS5737116A JP S5737116 A JPS5737116 A JP S5737116A JP 11272580 A JP11272580 A JP 11272580A JP 11272580 A JP11272580 A JP 11272580A JP S5737116 A JPS5737116 A JP S5737116A
- Authority
- JP
- Japan
- Prior art keywords
- receiving face
- bearing
- side receiving
- housing
- shaft
- 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.)
- Pending
Links
Landscapes
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
PURPOSE: To promote the axial rigidity and obtain the stable revolution at a high speed in a precision spindle device vertically used for recording machinery or the like by improving structures and arranged positions of three dynamic pressure type fluid bearings bearing a rotational shaft.
CONSTITUTION: A spindle device to bear a rotational shaft 1 is constructed by providing the 1stW3rd bearings 2W4 in a housing 5. A bearing 2 is provided with a shaft-side receiving face 21 of a truncated cone shape axially expanded outward and a housing-side receiving face 22 faced thereto with a gap between. The bearing 3 is provided with a shaft-side receiving face 31 of a truncated cone shape expanded oppositely to the above-said receiving face 21 and a housing-side receiving face 32 faced thereto with a gap between, while a bearing 4 is provided with a cylindrical shaft-side receiving face 41 and a housing-side receiving face 42. These receiving faces 21 and 31 are respectively provided with spiral grooves 23 and 33 which are twisted so that directions of pushing forces of lubrication oil may be oppositely faced to each other within the axial direction, while the receiving face 41 with a spiral groove 43 in which the above-said pushing force is directed to the bearing 2.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11272580A JPS5737116A (en) | 1980-08-18 | 1980-08-18 | Spindle device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11272580A JPS5737116A (en) | 1980-08-18 | 1980-08-18 | Spindle device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5737116A true JPS5737116A (en) | 1982-03-01 |
Family
ID=14593965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11272580A Pending JPS5737116A (en) | 1980-08-18 | 1980-08-18 | Spindle device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5737116A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4596474A (en) * | 1984-06-13 | 1986-06-24 | U.S. Philips Corporation | Bearing system comprising two facing hydrodynamic bearings |
US5448120A (en) * | 1991-11-14 | 1995-09-05 | Quantum Corp. | Integrated hydrodynamic bearing/motor assembly |
US5518319A (en) * | 1995-06-07 | 1996-05-21 | Selby; Theodore W. | Non-linear hydrodynamic bearing |
US6467962B1 (en) * | 1998-09-29 | 2002-10-22 | Minebea Co., Ltd. | Metal bearing and method of manufacturing the same |
US7789565B2 (en) * | 2004-03-16 | 2010-09-07 | Ntn Corporation | Fluid dynamic bearing apparatus |
-
1980
- 1980-08-18 JP JP11272580A patent/JPS5737116A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4596474A (en) * | 1984-06-13 | 1986-06-24 | U.S. Philips Corporation | Bearing system comprising two facing hydrodynamic bearings |
US5448120A (en) * | 1991-11-14 | 1995-09-05 | Quantum Corp. | Integrated hydrodynamic bearing/motor assembly |
US5518319A (en) * | 1995-06-07 | 1996-05-21 | Selby; Theodore W. | Non-linear hydrodynamic bearing |
US6467962B1 (en) * | 1998-09-29 | 2002-10-22 | Minebea Co., Ltd. | Metal bearing and method of manufacturing the same |
US7789565B2 (en) * | 2004-03-16 | 2010-09-07 | Ntn Corporation | Fluid dynamic bearing apparatus |
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