Patent ID: 8699181
Filing Date: 2014-04-15
Classification: G11B

Abstract:
1. A spindle motor for driving a hard disk drive having a stationary motor component ( 10 , 32 ; 110 , 132 ) and a rotatable motor component ( 12 , 34 ; 112 ; 134 ) that is rotatably supported with respect to the stationary motor component and that is driven by an electromagnetic drive system ( 36 , 38 ; 136 , 138 ), at least one storage disk ( 40 , 140 ) being fixed to the rotatable motor component using means of mounting and fastening ( 42 , 44 ; 142 , 144 ), wherein at least parts ( 34 ; 134 ) of the rotatable motor component and at least parts of the means of mounting and fastening ( 42 , 44 ; 142 , 144 ) have a wear resistant surface coating ( 34 a , 42 a , 44 a ; 134 a , 142 a , 144 a ) or are subjected to a wear resistant surface treatment.