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    • 5. 发明授权
    • Winchester disc drive
    • 温彻斯特磁盘驱动器
    • US4555189A
    • 1985-11-26
    • US444126
    • 1982-11-23
    • Charles W. Donkin
    • Charles W. Donkin
    • F16C19/54F16C19/55F16C31/04G11B21/08H02K5/173H02K41/035F16C33/04F16C23/08F16C27/08
    • H02K41/0358F16C19/55F16C31/04G11B21/08H02K5/1732
    • A rotary actuator assembly, for use as part of a servomechanism for positioning one or more data recording or data recovering heads over selectable data storage tracks at selectable radii on one or more rotary data storage discs, comprises a head support arm pivoted to rotate with a shaft held betwen two bearings in a yoke, where one of the bearings is a composite bearing allowing both axial and rotational movement of the shaft and the other bearing allows only rotational movement of the shaft, the two bearings co-operating to fix the position of the shaft while allowing its free rotation and allowing axial movement of the shaft whenever axial force exceeds a predetermined limit, thereby preventing undue bearing play or bearing binding attendant upon prior art designs.
    • 旋转致动器组件,用作用于将一个或多个数据记录或数据恢复头定位在一个或多个旋转数据存储盘上的可选择的半径处的可选数据存储轨道上的伺服机构的一部分,包括枢轴转动的头部支撑臂, 轴固定在轭架中的两个轴承之间,其中一个轴承是复合轴承,允许轴的轴向和旋转运动,而另一个轴承仅允许轴的旋转运动,两个轴承协作以固定位置 该轴同时允许其自由旋转并且每当轴向力超过预定极限时允许轴的轴向运动,从而防止与现有技术设计相关的不适当的轴承间隙或轴承结合。