The blue part vibrates under centrifugal forces created by two shafts carrying eccentrics. Vibration characteristics depend on
- rotation direction and velocity of the shafts,
- angle A between the eccentrics on each shaft
- angle B between the eccentrics between the shafts (set before moving).
It is possible to set up the mechanism for vibration only in horizontal (or vertical) direction or in both directions.
For this case there is only horizontal vibration when
- The shafts rotate in opposite directions
- A = 90 deg.
- B = 90 deg.