Integrated Cross Coupling Bearing Unit, ICCU The Integrated cross coupling bearing unit, ICCU, is IMV’s patented technology, which contains all the bearings necessary for free motion in three orthogonal axes in one unit. This means one ICCU has all the functionality of plane slide bearings within one unit, that would normally be achieved with individual, distributed bearings. One of the advantages of the ICCU is the weight saving of the moving per bearings. The ICCU contains the necessary functionality of the plane slide bearings, efficiently within one unit compared to three individual bearings needed in the distributed style. As a result, the ICCU excels in high frequency range performance and downsizes the whole vibration test system by its small-size.