JPH0291218U - - Google Patents
Info
- Publication number
- JPH0291218U JPH0291218U JP16934388U JP16934388U JPH0291218U JP H0291218 U JPH0291218 U JP H0291218U JP 16934388 U JP16934388 U JP 16934388U JP 16934388 U JP16934388 U JP 16934388U JP H0291218 U JPH0291218 U JP H0291218U
- Authority
- JP
- Japan
- Prior art keywords
- main shaft
- disk
- sleeve
- radial fluid
- drive means
- 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
- 239000012530 fluid Substances 0.000 claims description 13
- 238000009423 ventilation Methods 0.000 claims description 3
- 230000001050 lubricating effect Effects 0.000 claims description 2
- 239000000314 lubricant Substances 0.000 description 1
Landscapes
- Support Of The Bearing (AREA)
- Rotational Drive Of Disk (AREA)
- Sliding-Contact Bearings (AREA)
Description
第１図は本考案の一実施例の縦断面図、第２図
はスラスト流体軸受の溝パターンの平面図、第３
図は従来のデイスク用横形軸受装置の縦断面図で
ある。
１１は基台、１２は回転駆動手段、１３はデイ
スク装置、１４は主軸、１５はスリーブ、２０，
２１はフランジ、２２はハブ、２３はラジアル流
体軸受、２７はスラスト流体軸受、３１は潤滑流
体溜り、３１Ａは潤滑剤、３２は通気孔、３４は
端部開口、Ｄは磁気デイスク。
Fig. 1 is a longitudinal sectional view of one embodiment of the present invention, Fig. 2 is a plan view of the groove pattern of the thrust fluid bearing, and Fig. 3 is a plan view of the groove pattern of the thrust fluid bearing.
The figure is a longitudinal sectional view of a conventional horizontal bearing device for a disk. 11 is a base, 12 is a rotational drive means, 13 is a disk device, 14 is a main shaft, 15 is a sleeve, 20,
21 is a flange, 22 is a hub, 23 is a radial fluid bearing, 27 is a thrust fluid bearing, 31 is a lubricating fluid reservoir, 31A is a lubricant, 32 is a ventilation hole, 34 is an end opening, and D is a magnetic disk.
Claims (1)
動手段を、他端側に該回転駆動手段で駆動される
デイスク装置を有するデイスク用横形軸受装置に
おいて、 前記主軸を取り囲むスリーブは中空円筒状で両
端に内方へ突出するフランジを有し、前記スリー
ブの軸方向外方に突出した主軸端に一体回転可能
に取付けられたハブの外周にデイスクが装着され
、前記スリーブの内径面とこれに対向する主軸外
径面との間に軸方向に間隔を隔てて二ケ所にラジ
アル流体軸受を形成すると共に、前記スリーブの
フランジの内側面とこれに対向する主軸外側面と
の間にスラスト流体軸受を形成し、かつ前記二ケ
所のラジアル流体軸受の間の箇所に潤滑流体溜り
を設けたことを特徴とするデイスク用横形軸受装
置。 (2) 二ケ所のラジアル流体軸受の間の箇所及び
ラジアル流体軸受とスラスト流体軸受との間の箇
所に通気孔を設けると共に、該通気孔の端部開口
を前記回転駆動手段側に形成したことを特徴とす
る請求項(1)記載のデイスク用横形軸受装置。[Claims for Utility Model Registration] (1) In a horizontal bearing device for a disk, which has a rotational drive means on one end side of a horizontally supported main shaft and a disk device driven by the rotational drive means on the other end side, The sleeve surrounding the main shaft has a hollow cylindrical shape and has flanges projecting inward at both ends, and a disk is attached to the outer periphery of a hub that is integrally rotatably attached to the end of the main shaft that projects axially outward of the sleeve. , radial fluid bearings are formed at two locations spaced apart in the axial direction between the inner diameter surface of the sleeve and the outer diameter surface of the main shaft opposing thereto, and the inner diameter surface of the flange of the sleeve and the main shaft opposing thereto. A horizontal bearing device for a disk, characterized in that a thrust fluid bearing is formed between the two radial fluid bearings and a lubricating fluid reservoir is provided between the two radial fluid bearings. (2) Ventilation holes are provided between the two radial fluid bearings and between the radial fluid bearing and the thrust fluid bearing, and the end openings of the ventilation holes are formed on the rotation drive means side. The horizontal bearing device for a disk according to claim (1), characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16934388U JPH0547292Y2 (en) | 1988-12-29 | 1988-12-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16934388U JPH0547292Y2 (en) | 1988-12-29 | 1988-12-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0291218U true JPH0291218U (en) | 1990-07-19 |
| JPH0547292Y2 JPH0547292Y2 (en) | 1993-12-13 |
Family
ID=31459313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16934388U Expired - Lifetime JPH0547292Y2 (en) | 1988-12-29 | 1988-12-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0547292Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05225687A (en) * | 1991-12-23 | 1993-09-03 | Internatl Business Mach Corp <Ibm> | Spindle system and spindle system for recording disk drive use |
-
1988
- 1988-12-29 JP JP16934388U patent/JPH0547292Y2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05225687A (en) * | 1991-12-23 | 1993-09-03 | Internatl Business Mach Corp <Ibm> | Spindle system and spindle system for recording disk drive use |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0547292Y2 (en) | 1993-12-13 |