JPH0488019U - - Google Patents
Info
- Publication number
- JPH0488019U JPH0488019U JP40351390U JP40351390U JPH0488019U JP H0488019 U JPH0488019 U JP H0488019U JP 40351390 U JP40351390 U JP 40351390U JP 40351390 U JP40351390 U JP 40351390U JP H0488019 U JPH0488019 U JP H0488019U
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- stator
- rotor
- shaft
- bearing
- 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
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Sliding-Contact Bearings (AREA)
Description
第１図は本考案の第１の実施例を示す縦断面図
、第２図はスラスト軸受端面に形成された動圧発
生用溝の平面図、第３図は第１図の部拡大断面
図、第４図は本考案の第２の実施例を示す縦断面
図である。
１は軸、２はスリーブ、３はハブ、４は基台、
５はラジアル軸受面、６は空気抜き穴、８，３１
は動圧発生用溝、１５はロータ、１６はステータ
、１７はロータとステータとの間のすきま、１８
，３４は流通路。
Fig. 1 is a longitudinal sectional view showing a first embodiment of the present invention, Fig. 2 is a plan view of a dynamic pressure generating groove formed on the end face of the thrust bearing, and Fig. 3 is an enlarged sectional view of a portion of Fig. 1. , FIG. 4 is a longitudinal sectional view showing a second embodiment of the present invention. 1 is the shaft, 2 is the sleeve, 3 is the hub, 4 is the base,
5 is a radial bearing surface, 6 is an air vent hole, 8, 31
15 is a rotor, 16 is a stator, 17 is a gap between the rotor and stator, 18 is a groove for generating dynamic pressure.
, 34 is a distribution path.
Claims (1)
ブには軸方向に離れた二箇所に円筒状の軸受面が
設けられると共に、該二箇所の軸受面の間の箇所
にスリーブの内外を連通する空気抜き穴が設けら
れ、軸には軸受面に対向する対向面が設けられ、
該対向面と前記軸受面との少なくとも一方に動圧
発生用の溝が設けられた軸受装置において、 前記スリーブの外周側にロータとステータとを
半径方向に対向して配設し、前記空気抜き穴は、
スリーブの外径面とロータ又はステータの内径面
との間に設けた流通路と、ロータとステータとの
間のすきまとを介して外気に通ずるように構成し
たことを特徴とする軸受装置。[Claims for Utility Model Registration] A shaft and a sleeve fitted to the shaft are provided, and the sleeve is provided with cylindrical bearing surfaces at two locations separated in the axial direction. An air vent hole is provided at a location that communicates the inside and outside of the sleeve, and the shaft is provided with an opposing surface that faces the bearing surface.
In a bearing device in which a groove for generating dynamic pressure is provided in at least one of the opposing surface and the bearing surface, a rotor and a stator are disposed on the outer peripheral side of the sleeve to face each other in a radial direction, and the air vent hole teeth,
A bearing device characterized in that it is configured to communicate with outside air through a flow passage provided between an outer diameter surface of a sleeve and an inner diameter surface of a rotor or stator, and a gap between the rotor and the stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40351390U JPH0488019U (en) | 1990-12-17 | 1990-12-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP40351390U JPH0488019U (en) | 1990-12-17 | 1990-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0488019U true JPH0488019U (en) | 1992-07-30 |
Family
ID=31881279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP40351390U Pending JPH0488019U (en) | 1990-12-17 | 1990-12-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0488019U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016207966A (en) * | 2015-04-28 | 2016-12-08 | 北川工業株式会社 | Magnetic substance core |
-
1990
- 1990-12-17 JP JP40351390U patent/JPH0488019U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016207966A (en) * | 2015-04-28 | 2016-12-08 | 北川工業株式会社 | Magnetic substance core |