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SPINDLE MOTOR FOR PREVENTING AXIS DIRECTION SURFACE TOUCH FRICTION OF A HUB AND A SLEEVE IN AN AXIS DIRECTION OF ROTATION AXIS AT LOW SPEED ROTATION BY FORMING A COATING LAYER ON ONE SIDE WHICH IS FACED WITH THE SLEEVE
SPINDLE MOTOR FOR PREVENTING AXIS DIRECTION SURFACE TOUCH FRICTION OF A HUB AND A SLEEVE IN AN AXIS DIRECTION OF ROTATION AXIS AT LOW SPEED ROTATION BY FORMING A COATING LAYER ON ONE SIDE WHICH IS FACED WITH THE SLEEVE
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机译：主轴电机，用于在低速旋转时通过在形成轴套的一侧形成涂层来防止旋转轴的轴毂和轴的轴方向表面摩擦
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摘要
PURPOSE: A spindle motor is provided to selectively form a coating layer in one side which is faced with a sleeve, thereby preventing axis direction surface touch friction of the sleeve and a rotation axis when a rotation unit is overloaded.;CONSTITUTION: A rotation unit includes a rotation axis(110), a hub(120), and a magnet(130). A fixing unit includes a sleeve(140), a base(150), and an armature(160). A fluid hydrodynamic bearing unit is formed between the rotation unit and the fixing unit. A coating layer(C1) is selectively formed in one side which is faced with the sleeve to prevent axis direction surface touch friction of the rotation axis and the sleeve.;COPYRIGHT KIPO 2013
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