Abstract
This paper describes the experimental study on swing response of fluid film bearing spindle for Hard Disk Drives (HDDs). The FDBs are widely used as rotating shaft support elements for HDD spindle motors. Recently, the opportunity for the HDD spindle motors exposed to external vibration has been increasing because the HDDs are used for recording device such as laptop PCs, video cameras, car navigation systems. Hence, the rotating shaft contacts the bearing from disturbance, it causes of data loss. In order to avoid the problems, it is extremely important to know how the spindle moves against the large impact on HDDs experimentally. However, as far as the authors know, there are few experimental studies treating the swing response. In this paper, firstly, we propose a new test rig and test method for swing response of HDD spindle. Then we conduct the swing test on spindle for 2.5"HDD and show the experimental results of maximum displacement of disk and swing response waveforms.
