JPS59103551U - bearing mechanism - Google Patents

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来の磁気ディスク装置の軸受機構の概略を示
す側断面図、第２図は本考案による軸受機構の一実施例
を示すａは側断面図、ｂはベアリングの詳細図を示す。 図中において、１はフレーム、２はカバー、３は媒体、
４はハブ、５．１５はベアリング、６は磁性シール、７
は金具、８は当接面、９はスペーサ、１０は軸、１１は
ロータ、１２はステータ、１３は部材、１４はＯリング
を示す。FIG. 1 is a side sectional view schematically showing a bearing mechanism of a conventional magnetic disk drive, and FIG. 2 is a side sectional view showing an embodiment of the bearing mechanism according to the present invention. FIG. In the figure, 1 is a frame, 2 is a cover, 3 is a medium,
4 is the hub, 5.15 is the bearing, 6 is the magnetic seal, 7
8 is a metal fitting, 8 is a contact surface, 9 is a spacer, 10 is a shaft, 11 is a rotor, 12 is a stator, 13 is a member, and 14 is an O-ring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 媒体を回転駆動するスピンドル機構の駆動軸を保持する
ベアリングと、該ベアリングに併設され該駆動軸方向の
間隙を遮断する磁性流体を有する磁性シールとを備えた
軸受機構において、前記ベアリングの外輪と前記磁性シ
ールの固着部との間には互いを連結する非磁性材の部材
が設けられると共に、該ベアリングの内輪を延長せしめ
、該磁性シールに対向され前記磁性流体による被膜が形
成される延長部が形成されたことを特徴とする軸受機構
。A bearing mechanism that includes a bearing that holds a drive shaft of a spindle mechanism that rotationally drives a medium, and a magnetic seal that is attached to the bearing and has a magnetic fluid that blocks a gap in the direction of the drive shaft. A member made of a non-magnetic material is provided between the fixed part of the magnetic seal and the fixed part of the magnetic seal, and an extension part that extends the inner ring of the bearing and is opposite to the magnetic seal and is coated with the magnetic fluid. A bearing mechanism characterized in that: