JPH02130422U - - Google Patents
Info
- Publication number
- JPH02130422U JPH02130422U JP4068089U JP4068089U JPH02130422U JP H02130422 U JPH02130422 U JP H02130422U JP 4068089 U JP4068089 U JP 4068089U JP 4068089 U JP4068089 U JP 4068089U JP H02130422 U JPH02130422 U JP H02130422U
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- magnets
- ball bearing
- rotor shaft
- electric 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
- 230000036316 preload Effects 0.000 claims description 3
Landscapes
- Motor Or Generator Frames (AREA)
- Support Of The Bearing (AREA)
Description
第１図は本考案の一実施例の断面図、第２図は
同上の軸受の取付位置の説明図、第３図ａ，ｂは
夫々予圧用のマグネツトの配設状態を示す説明図
、第４図は従来例の断面図、第５図はボールベア
リングの構造を示す断面図、第６図は他の従来例
の断面図である。
１は回転子軸、５はボールベアリング、６はス
リーブベアリング、７は軸受台、３，４はマグネ
ツトである。
Fig. 1 is a sectional view of an embodiment of the present invention, Fig. 2 is an explanatory view of the mounting position of the same bearing, Figs. 3a and b are explanatory views showing the arrangement of preload magnets, 4 is a sectional view of a conventional example, FIG. 5 is a sectional view showing the structure of a ball bearing, and FIG. 6 is a sectional view of another conventional example. 1 is a rotor shaft, 5 is a ball bearing, 6 is a sleeve bearing, 7 is a bearing stand, and 3 and 4 are magnets.
Claims (1)
記回転子軸が貫装される軸受台内に備え、荷重の
大きい側の軸受としてボールベアリングを用いる
と共に、荷重の小さい側の軸受として焼結含油軸
受を用い、上記ボールベアリングのみに予圧を掛
ける予圧手段を備えた電動機の軸受構造。 (2) 上記予圧手段として同極を対向させた２個
のマグネツトを用い、上記マグネツトの反発力で
ボールベアリングに予圧を掛けて成る請求項１記
載の電動機の軸受構造。[Scope of Claim for Utility Model Registration] (1) Two bearings that support the rotor shaft at two points are provided in the bearing stand into which the rotor shaft is inserted, and a ball bearing is used as the bearing on the side with the larger load. A bearing structure for an electric motor, which uses a sintered oil-impregnated bearing as the bearing on the lower load side, and is equipped with a preload means for applying preload only to the ball bearing. (2) A bearing structure for an electric motor according to claim 1, wherein two magnets with the same poles facing each other are used as the preloading means, and the ball bearing is preloaded by the repulsive force of the magnets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4068089U JPH02130422U (en) | 1989-04-06 | 1989-04-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4068089U JPH02130422U (en) | 1989-04-06 | 1989-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02130422U true JPH02130422U (en) | 1990-10-26 |
Family
ID=31550676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4068089U Pending JPH02130422U (en) | 1989-04-06 | 1989-04-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02130422U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006112505A (en) * | 2004-10-14 | 2006-04-27 | Hitachi Global Storage Technologies Netherlands Bv | Bearing mechanism, carriage assembly and magnetic disk device |
-
1989
- 1989-04-06 JP JP4068089U patent/JPH02130422U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006112505A (en) * | 2004-10-14 | 2006-04-27 | Hitachi Global Storage Technologies Netherlands Bv | Bearing mechanism, carriage assembly and magnetic disk device |
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