Abstract: A vibratory table having a base and a platform movably supported above the base. The vibratory table includes a roller support secured to the platform and a first and a second driveshaft rotatably mounted to the roller support so that the shafts are spaced apart and parallel to each other. A first gear is secured to the first shaft which meshes with a second gear secured to the second shaft so that the shafts rotate in synchronism with each other and in opposite directions. A roller is disposed over each shaft while a shift mechanism is contained within each roller. Each shift mechanism is operable to move the roller in a radial direction to a position offset from the axis of the roller to create an unbalanced load for the rollers. A motor rotatably drives at least one of the shafts.