Nonoperating Rotational Shock; Table 19 Sinusoidal Shock Wave; Table 20 Rotational Shock - Hitachi HDS723020BLA642 Specifications

6.6.4.2
Sinusoidal shock wave
The shape is approximately half-sine pulse. The figure below shows the maximum acceleration level and
duration.
Accleration level (m/sec
2940
1470

Table 19 Sinusoidal shock wave

6.6.5

Nonoperating Rotational shock

All shock inputs shall be applied around the actuator pivot axis.
Duration
1 ms
2 ms

Table 20 Rotational Shock

2
) Duration (ms)
Hitachi hard disk drive specifications
41
2
11
Rad/sec
30,000
20,000
2