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MOTION LIMITER IN A MEMORY UNIT WITH DIRECT ACCESS TO PREVENT DAMAGE TO DISK ZONES AND SPINDLE BEARINGS
MOTION LIMITER IN A MEMORY UNIT WITH DIRECT ACCESS TO PREVENT DAMAGE TO DISK ZONES AND SPINDLE BEARINGS
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机译:直接访问内存单元中的运动限制器,以防止损坏磁盘区域和主轴轴承
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摘要
A direct access storage device (DASD) includes a plurality of motion limiters and/or a continuous motion limiter projecting from at least one of the base and cover, each motion limiter having faces disposed in close proximity to and confronting opposite surfaces of a data storage disk adjacent a peripheral portion of the disk that does not contain data. Preferably, the motion limiters are disposed at several points about the periphery of the disk, and may be incorporated in a load/unload ramp and/or side rails of the DASD. The faces of the motion limiters are disposed relative to the disk so that when the DASD is subjected to an acceleration, the disk contacts at least one of the faces only at the peripheral portion of the disk, outside the data zone. Accordingly, the motion limiters prevent data zone and spindle bearing damage when the DASD is dropped.
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