Disk storage device having a spindle driving motor

Details Disk storage device having a spindle driving motor Disk storage device having a spindle driving motor

1995-06-07

1999-08-31

Dougherty, Thomas M.

Electrical generator or motor structure

Dynamoelectric

Rotary

310156, 369269, 360 9807, H02K 708, G11B 1708

Patent

active

059457511

ABSTRACT:
The invention relates to a spindle driving motor, in particular an external rotor motor, the main components of which are accommodated in the interior of a driving hub (4) or the back iron (5). According to the invention, in order to minimize the number of joints, both ball bearings (11, 12) are arranged directly, yet correctly as far as assembly is concerned, between the fixed shaft (10) and the back iron (5), a collar (15) having a larger diameter serving in particular to this end.

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