JPS643116U - - Google Patents
Info
- Publication number
- JPS643116U JPS643116U JP9588587U JP9588587U JPS643116U JP S643116 U JPS643116 U JP S643116U JP 9588587 U JP9588587 U JP 9588587U JP 9588587 U JP9588587 U JP 9588587U JP S643116 U JPS643116 U JP S643116U
- Authority
- JP
- Japan
- Prior art keywords
- thrust
- radial
- bearing surface
- thin
- sleeve
- 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 3
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
Description
第１図は本考案の一実施例を示す正面断面図、
第２図はその要部拡大図、第３図は第２図の変形
例を示す断面図である。
（主要部分の符号の説明）、２０…軸、２２，
２４…ラジアル面、２６，２８…動圧発生みぞ、
２９…スラスト面、３０…スリーブ、３４，３６
…ラジアル軸受面、３９…段面、４０…薄肉部、
４２…開口側部、４３…段面側部、４４…スラス
ト受け部材、４６…スラスト軸受面。
FIG. 1 is a front sectional view showing an embodiment of the present invention;
FIG. 2 is an enlarged view of the main part thereof, and FIG. 3 is a sectional view showing a modification of FIG. 2. (Explanation of symbols of main parts), 20...axis, 22,
24...Radial surface, 26, 28...Dynamic pressure generation groove,
29... Thrust surface, 30... Sleeve, 34, 36
...Radial bearing surface, 39...Stepped surface, 40...Thin wall part,
42... Opening side part, 43... Step side part, 44... Thrust receiving member, 46... Thrust bearing surface.
Claims (1)
、軸の一方の端面にはスラスト面が形成され、軸
に嵌合するスリーブの内周面には前記ラジアル面
に対向するラジアル軸受面が形成され、前記ラジ
アル面とラジアル軸受面との少なくとも一方には
動圧発生みぞが形成され、スリーブの軸方向の一
方の端部に取付けたスラスト受け部材はスラスト
面に対向するスラスト軸受面を有し、スラスト面
とスラスト軸受面との少なくとも一方に動圧発生
みぞが形成された動圧流体軸受装置において、 スリーブの軸方向の一方の端部には内周面がラ
ジアル軸受面より大径の円筒状の薄肉部が設けら
れ、該薄肉部の内周面とラジアル軸受面との間の
個所には平面状の段面が設けられ、薄肉部の内周
面は開口側部が段面側部より小径であり、スラス
ト受け部材は段面に接し、該薄肉部の開口側部と
スラスト受け部材の外周面との少なくとも一方が
半径方向に弾性変形した状態で互に接しているこ
とを特徴とする動圧流体軸受装置。[Claims for Utility Model Registration] A cylindrical radial surface is formed on the outer peripheral surface of the shaft, a thrust surface is formed on one end surface of the shaft, and the radial surface is formed on the inner peripheral surface of the sleeve that fits on the shaft. A radial bearing surface is formed opposite to the radial bearing surface, a dynamic pressure generating groove is formed in at least one of the radial surface and the radial bearing surface, and a thrust receiving member attached to one end of the sleeve in the axial direction is formed on the thrust surface. In a hydrodynamic bearing device, which has a thrust bearing surface facing the axial direction, and a dynamic pressure generation groove is formed on at least one of the thrust surface and the thrust bearing surface, an inner circumferential surface is formed at one end in the axial direction of the sleeve. A cylindrical thin-walled portion having a larger diameter than the radial bearing surface is provided, and a planar stepped surface is provided between the inner circumferential surface of the thin-walled portion and the radial bearing surface, and the inner circumferential surface of the thin-walled portion is has an opening side portion having a smaller diameter than a stepped side portion, the thrust receiving member is in contact with the stepped surface, and at least one of the opening side portion of the thin wall portion and the outer peripheral surface of the thrust receiving member is elastically deformed in the radial direction. A hydrodynamic bearing device characterized in that the bearings are in contact with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9588587U JPS643116U (en) | 1987-06-24 | 1987-06-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9588587U JPS643116U (en) | 1987-06-24 | 1987-06-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS643116U true JPS643116U (en) | 1989-01-10 |
Family
ID=31320622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9588587U Pending JPS643116U (en) | 1987-06-24 | 1987-06-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS643116U (en) |
-
1987
- 1987-06-24 JP JP9588587U patent/JPS643116U/ja active Pending
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