Hard disk drive (HDD) are the most useful external storage devices for computer systems and consumer electronic equipment. Digital information is recorded in concentric tracks on rotating disks using miniaturized read/write (R/W) elements in an HDD. R/W elements are mounted on self-lubricated sub micrometer flying sliders. These sliders are connected to stainless steel (SST) suspensions that are connected to guide actuator arms and a voice coil motor (VCM) which allows cross-track seeking and track following of R/W elements. A head gimbal assembly (HGA) consists of the slider and the SST suspension. The recording density of HDDs increases several tenths of a percent every year. However, the airflow-induced vibration of an HGA windage is an obstacle to increasing track densities in HDD.(Shigeo Nakamura et al., 2005) Our earlier finite element analysis studies have shown natural frequencies and mode shape comparable with experimental . The strategy of the present study technique in predicts results of vibration by finite element analysis. Which this research aerodynamic force in HDD that happen be force the source does with HGA while flow through the spacing between a pair of HGAs (mainstream) the state of inner track following get from the research (Hayato Shimizu et al., 2003) under resemble various conditions Most of the data reported in this paper information can also be used to further study the vibrations of head stack assembly (HSA) and to develop the finite element model of HGA.