JPH01174797U - - Google Patents
Info
- Publication number
- JPH01174797U JPH01174797U JP7035088U JP7035088U JPH01174797U JP H01174797 U JPH01174797 U JP H01174797U JP 7035088 U JP7035088 U JP 7035088U JP 7035088 U JP7035088 U JP 7035088U JP H01174797 U JPH01174797 U JP H01174797U
- Authority
- JP
- Japan
- Prior art keywords
- magnetic disk
- rotating shaft
- hub
- bearing portion
- spindle motor
- 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
- 239000000758 substrate Substances 0.000 claims 1
- 239000011553 magnetic fluid Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Rotational Drive Of Disk (AREA)
- Motor Or Generator Frames (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Description
第１図は本考案に係る磁気デイスク装置のスピ
ンドルモータの一実施例の要部を示す縦断面図、
第２図は本考案の他の実施例の要部を示す縦断面
図、第３図は従来の磁気デイスク装置の構成を示
す縦断面図である。
１……基板、２，３……軸受、４……軸受部、
７……磁気デイスク、９……スピンドルシヤフト
（回転軸）、１０……ハブ、１４……磁性流体（
シール部材）、１５，１９……溝部。
FIG. 1 is a longitudinal cross-sectional view showing a main part of an embodiment of a spindle motor of a magnetic disk device according to the present invention;
FIG. 2 is a vertical cross-sectional view showing the main parts of another embodiment of the present invention, and FIG. 3 is a vertical cross-sectional view showing the configuration of a conventional magnetic disk device. 1... Board, 2, 3... Bearing, 4... Bearing part,
7... Magnetic disk, 9... Spindle shaft (rotating shaft), 10... Hub, 14... Magnetic fluid (
sealing member), 15, 19...groove portion.
Claims (1)
基板に固定された軸受部と、該軸受部外周に間隙
を介して装着され、前記回転軸上端に固定された
ほぼ円筒状のハブと、該ハブの外周に積層して取
り付けられた複数枚の磁気デイスクと、前記回転
軸と前記軸受部との間に設けられたシール部材と
を具備してなる磁気デイスク装置のスピンドルモ
ータにおいて、前記ハブの下端内面に前記シール
部材の流出を防止する溝部を設けたことを特徴と
する磁気デイスク装置のスピンドルモータ。 A bearing that rotatably supports the rotating shaft is fitted,
A bearing portion fixed to a substrate, a substantially cylindrical hub attached to the outer periphery of the bearing portion through a gap and fixed to the upper end of the rotating shaft, and a plurality of sheets attached in a layered manner to the outer periphery of the hub. In a spindle motor of a magnetic disk device comprising a magnetic disk and a seal member provided between the rotating shaft and the bearing portion, a groove portion is provided on the inner surface of the lower end of the hub to prevent the seal member from flowing out. A spindle motor for a magnetic disk device, characterized in that:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7035088U JPH01174797U (en) | 1988-05-30 | 1988-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7035088U JPH01174797U (en) | 1988-05-30 | 1988-05-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01174797U true JPH01174797U (en) | 1989-12-12 |
Family
ID=31295598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7035088U Pending JPH01174797U (en) | 1988-05-30 | 1988-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01174797U (en) |
-
1988
- 1988-05-30 JP JP7035088U patent/JPH01174797U/ja active Pending
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