Wedge jack provides the most rigid support after adjustment. Jack has mating parts with spherical seats that allow automatic adjustment for up to 7 degrees of transverse compensation for uneven floors. The wedges move readily in response to turning the adjustment bolts. Jack is furnished with 1/2″ thick oil resistant pads underneath to provide friction and vibration isolation. Three piece jack has a through hole for bolting and equipment moves only up and down during adjustment. Max load 20000 lbs. 6-5/8″l x 3-1/2″w x 3-1/4″h overall dimensions.