发明名称 Hydrodynamic bearing, spindle motor and hard disk drive
摘要 The invention relates to a hydrodynamic bearing, particularly for a spindle motor, comprising a shaft, a thrust plate connected to the shaft and a bearing sleeve closed at one end by a cover plate, the bearing sleeve enclosing the shaft and the thrust plate with a slight radial spacing forming a concentric bearing gap filled with a lubricant. As is already known, the surfaces of the bearing sleeve and the shaft facing each other form at least one radial bearing region and the surfaces of the bearing sleeve, the cover plate and the thrust plate facing each other form at least one axial bearing region. In the hydrodynamic bearing according to the invention, at least one connecting channel is provided which connects a section between the bearing sleeve and the shaft abutting the radial bearing region and a section of the bearing gap abutting the axial bearing region to each other.
申请公布号 US7290933(B2) 申请公布日期 2007.11.06
申请号 US20040951984 申请日期 2004.09.28
申请人 MINEBEA CO., LTD. 发明人 BRAUN DIETER;HOFFMANN JOERG;KULL ANDREAS
分类号 F16C17/10;F16C33/10;F16C33/74;G11B19/20;H02K5/16;H02K7/08 主分类号 F16C17/10
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