Electrical generator or motor structure – Dynamoelectric – Rotary
Patent
1999-07-08
2000-06-27
Ramirez, Nestor
Electrical generator or motor structure
Dynamoelectric
Rotary
310156, H02K 516
Patent
active
060810572
ABSTRACT:
In a spindle motor for a disc drive in which a rotatable body having a disc mounted thereon is rotatively driven by a motor, the rotatable body is rotatably supported on a support member through a ball bearing and a hydrodynamic fluid bearing, and a preload equal to or greater than an axial load of 1N is imparted to the ball bearing.
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Moguchi Shoji
Muraki Hiromitsu
Sakatani Ikunori
Tanaka Katsuhiko
NSK Ltd.
Ramirez Nestor
Waks Joseph
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