Patent ID: 9646645
Date: 2017-05-09
CPC Classifications: G11B,H02K

Claim:
1. A spindle motor for driving a hard disk drive, comprising: a stationary motor component ( 10 , 12 , 16 , 18 , 110 , 112 , 114 , 126 ), a rotatable motor component ( 14 , 116 , 128 , 140 ) which is rotatably supported relative to the stationary motor component by means of a fluid dynamic bearing system, a bearing gap ( 20 , 120 , 132 ) between the fixed motor component ( 10 , 12 , 16 , 18 , 110 , 112 , 114 , 126 ) and the rotatable motor component ( 14 , 116 , 128 , 140 ) is disposed and filled with a bearing fluid, having at least one open end, at least one sealing gap ( 34 , 122 , 134 ) for sealing the open end of the bearing gap ( 20 , 120 , 132 ), at least one cap ( 30 , 118 ) to cover the sealing gap ( 34 , 122 , 134 ), the cap being fixed on the rotatable motor component ( 14 , 116 , 128 ) is fixed, a disk clamp ( 44 , 156 ) for fixing at least one magnetic storage disk ( 48 , 148 ) on the rotatable motor component ( 14 , 140 ), an electromagnetic drive system ( 40 , 42 , 142 , 144 ) to drive the rotatable motor component ( 14 , 116 , 128 , 140 ), characterized in, that the disk clamp ( 44 , 156 ) abuts on and is centered on a radially facing peripheral surface of the cover cap ( 30 , 118 ).