JPS5869116U - Cylindrical hydrodynamic bearing - Google Patents
Cylindrical hydrodynamic bearingInfo
- Publication number
- JPS5869116U JPS5869116U JP16371681U JP16371681U JPS5869116U JP S5869116 U JPS5869116 U JP S5869116U JP 16371681 U JP16371681 U JP 16371681U JP 16371681 U JP16371681 U JP 16371681U JP S5869116 U JPS5869116 U JP S5869116U
- Authority
- JP
- Japan
- Prior art keywords
- groove
- cylindrical
- thrust
- radial
- radial inner
- 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
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の円筒形動圧軸受の断面図、第２図はこの
考案の一実施例を示す円筒形動圧軸受の断面図、第３図
、第４図、および第６図はこの考案の他の★施例を示す
円筒形動圧軸受の断面図、第５図は第４図に示す円筒形
動圧軸受のスラスト底面の平面図である。
図中、２１はハウジング、２２は円筒状孔、２３はラジ
アル内面、２４はスラスト底面、２５はラジアル内面の
開口側部、２６は開口側のみぞ、２７はラジアル内面の
底側部、２８は底側のみぞ、３５は軸体、３６はラジア
ル外面、３７はスラスト端面、３８は外周みぞ、Ｂは開
口側のみぞのラジアル外面と対向する部分の軸方向長さ
、Ｃは底側のみぞのラジアル外面と対向する部分の軸方
向長さである。Fig. 1 is a sectional view of a conventional cylindrical hydrodynamic bearing, Fig. 2 is a sectional view of a cylindrical hydrodynamic bearing showing an embodiment of this invention, and Figs. 3, 4, and 6 are sectional views of this bearing. A sectional view of a cylindrical dynamic pressure bearing showing another embodiment of the invention, and FIG. 5 is a plan view of the thrust bottom surface of the cylindrical dynamic pressure bearing shown in FIG. 4. In the figure, 21 is a housing, 22 is a cylindrical hole, 23 is a radial inner surface, 24 is a thrust bottom surface, 25 is an opening side of the radial inner surface, 26 is a groove on the opening side, 27 is a bottom side of the radial inner surface, and 28 is a Groove on the bottom side, 35 is the shaft body, 36 is the radial outer surface, 37 is the thrust end surface, 38 is the outer circumferential groove, B is the axial length of the part of the groove on the opening side that faces the radial outer surface, and C is the groove on the bottom side. This is the axial length of the portion facing the radial outer surface of
Claims (1)
ジアル内面２３とスラスト底面２４とを有し、前記円筒
状孔２２に配設した軸体３５はラジアル内面２３と対向
して共働するラジアル外面３６と、スラスト底面２４と
対向して共働するスラスト端面３７とを有している円筒
形動圧軸受において、前記ラジアル内面の開口側部２５
に設けたスパイラル状の開口側のみぞ２６とラジアル内
面の底側部２７に設けたスパイラル状の底側のみぞ２８
とはみぞの向きが異なつ゛ており、前記ラジアル外面３
台に設けた外周みぞ３Ｂは開口側のみぞ２６と底側のみ
ぞ２８とにそれぞれ対向し、前記開口側のみぞのラジア
ル外面と対向する部分の軸方向長さＢは底側のみぞのラ
ジアル外面と対向する部分の軸方向長さＣより長いこと
を特徴とする円筒形動圧軸受。 ２ スラスト底面２４とスラスト端面３７との少なくと
も一方に動圧発生用のみぞ５１を設けた実用新案登録請
求の範囲第１項記載の円筒形動圧軸受。[Claims for Utility Model Registration] 1. The cylindrical hole 22 provided in the housing 21 has a cylindrical radial inner surface 23 and a thrust bottom surface 24, and the shaft body 35 disposed in the cylindrical hole 22 has a radial inner surface 23. In a cylindrical hydrodynamic bearing having a radial outer surface 36 that faces and cooperates with the thrust bottom surface 24 and a thrust end surface 37 that faces and cooperates with the thrust bottom surface 24, the open side portion 25 of the radial inner surface
a spiral opening groove 26 provided in the radial inner surface and a spiral bottom groove 28 provided in the bottom portion 27 of the radial inner surface.
The direction of the groove is different from that of the radial outer surface 3.
The outer circumferential groove 3B provided on the base faces the opening side groove 26 and the bottom side groove 28, respectively, and the axial length B of the portion facing the radial outer surface of the opening side groove is the radial length of the bottom side groove. A cylindrical hydrodynamic bearing characterized by being longer than the axial length C of the portion facing the outer surface. 2. The cylindrical dynamic pressure bearing according to claim 1, which is a registered utility model, in which a groove 51 for generating dynamic pressure is provided in at least one of the thrust bottom surface 24 and the thrust end surface 37.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16371681U JPS5869116U (en) | 1981-11-04 | 1981-11-04 | Cylindrical hydrodynamic bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16371681U JPS5869116U (en) | 1981-11-04 | 1981-11-04 | Cylindrical hydrodynamic bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5869116U true JPS5869116U (en) | 1983-05-11 |
| JPS6133286Y2 JPS6133286Y2 (en) | 1986-09-29 |
Family
ID=29956004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16371681U Granted JPS5869116U (en) | 1981-11-04 | 1981-11-04 | Cylindrical hydrodynamic bearing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5869116U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63167111A (en) * | 1986-12-26 | 1988-07-11 | Matsushita Electric Ind Co Ltd | Dynamic pressure type field bearing |
-
1981
- 1981-11-04 JP JP16371681U patent/JPS5869116U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63167111A (en) * | 1986-12-26 | 1988-07-11 | Matsushita Electric Ind Co Ltd | Dynamic pressure type field bearing |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6133286Y2 (en) | 1986-09-29 |
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