JPH0318665U - - Google Patents
Info
- Publication number
- JPH0318665U JPH0318665U JP7776389U JP7776389U JPH0318665U JP H0318665 U JPH0318665 U JP H0318665U JP 7776389 U JP7776389 U JP 7776389U JP 7776389 U JP7776389 U JP 7776389U JP H0318665 U JPH0318665 U JP H0318665U
- Authority
- JP
- Japan
- Prior art keywords
- hub
- seal
- circumferential surface
- holding part
- seal holding
- 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
- 239000011553 magnetic fluid Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Brushless Motors (AREA)
Description
第１図は本考案の一実施例を示す断面正面図、
第２図はブツシユの拡大断面図、第３図は要部拡
大断面図、第４図は作用説明図、第５図はブツシ
ユの他の例を示す断面図、第６図は他の実施例の
要部断面図である。
３……枢支軸、７……ハブ、８……内周面、１
０……ブツシユ、１１……磁性流体シール、１２
……固定部、１３……シール保持部、１４……肉
薄部、１５……外周面、１６……間〓部。
FIG. 1 is a cross-sectional front view showing an embodiment of the present invention;
Fig. 2 is an enlarged sectional view of the bush, Fig. 3 is an enlarged sectional view of the main part, Fig. 4 is an explanatory diagram of the action, Fig. 5 is a sectional view showing another example of the bush, and Fig. 6 is another embodiment. FIG. 3... Pivot shaft, 7... Hub, 8... Inner peripheral surface, 1
0...Button, 11...Magnetic fluid seal, 12
...Fixing part, 13...Seal holding part, 14...Thin wall part, 15...Outer peripheral surface, 16...Interval part.
Claims (1)
ると共に、該ハブ７内周面８に嵌着されるリング
状ブツシユ１０を介して、磁性流体シール１１を
該ハブ７側に取付けたスピンドルモータに於て、 該ブツシユ１０が、上記ハブ７内周面８に接着
固定される固定部１２と、上記磁性流体シール１
１が直接に内嵌されるシール保持部１３と、該シ
ール保持部１３と上記固定部１２との間に形成さ
れた肉薄部１４とから、構成され、かつ、該シー
ル保持部１３及び該肉薄部１４の外周面１５と、
上記ハブ７内周面８との熱膨張吸収用間〓部１６
を形成したことを特徴とするスピンドルモータ。[Claims for Utility Model Registration] A hub 7 is rotatably mounted around a pivot shaft 3, and a magnetic fluid is In a spindle motor in which a seal 11 is attached to the hub 7 side, the bush 10 is attached to a fixing part 12 adhesively fixed to the inner circumferential surface 8 of the hub 7, and the magnetic fluid seal 1.
1 is directly fitted into the seal holding part 13, and a thin wall part 14 formed between the seal holding part 13 and the fixing part 12, and the seal holding part 13 and the thin wall part an outer circumferential surface 15 of the portion 14;
Thermal expansion absorbing space 16 with the inner circumferential surface 8 of the hub 7
A spindle motor characterized by forming:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7776389U JPH0750864Y2 (en) | 1989-06-30 | 1989-06-30 | Spindle motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7776389U JPH0750864Y2 (en) | 1989-06-30 | 1989-06-30 | Spindle motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0318665U true JPH0318665U (en) | 1991-02-25 |
| JPH0750864Y2 JPH0750864Y2 (en) | 1995-11-15 |
Family
ID=31620447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7776389U Expired - Lifetime JPH0750864Y2 (en) | 1989-06-30 | 1989-06-30 | Spindle motor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0750864Y2 (en) |
-
1989
- 1989-06-30 JP JP7776389U patent/JPH0750864Y2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0750864Y2 (en) | 1995-11-15 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |