Patent ID: 6906439
Filing Date: 2005-06-14
Classification: G11B,H02K

Abstract:
1. Spindle motor, in particular for driving hard disk drives, comprising a casing part ( 1 ; 9 ) with a horizontal flange portion ( 2 ; 10 ), a vertically oriented receiving sleeve ( 3 ; 11 ) for receiving and mounting a bearing configuration ( 14 ) comprising two rolling bearings ( 14 a , 14 b ) with at least one inner ring and one outer ring for rotatably mounting a shaft ( 15 ) supporting a rotor ( 17 ) for rotation about a rotation axis, and a bottom portion ( 5 ; 13 ) integrally formed as one continuously monolithic structure with the horizontal flange portion ( 2 ; 10 ), which closes at one axial end the receiving sleeve ( 3 ; 11 ) at whose inner periphery the outer ring of the bearing configuration ( 14 ) is mounted.