A fluid-film spindle for 2.5 inch hard disk drive is described that effectively reduces nonrepeatable runout to less than 0.05 /spl mu/m, making it possible to increase track density. The spindle is used with a newly designed three-lobe bearing of which each lobe is asymmetrical. The influence of stiffness and temperature in a prototype spindle using this bearing are discussed and comparisons are made with a conventional ball-bearing spindle.
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机译：描述了一种用于2.5英寸硬盘驱动器的液膜锭子，该锭子有效地将不可重复的跳动减小到小于0.05 / spl mu / m，从而可以增加磁道密度。主轴与新设计的三瓣轴承一起使用，每个瓣都不对称。讨论了使用这种轴承的原型主轴中刚度和温度的影响，并与传统的滚珠主轴进行了比较。
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