Multiple axis adjustable pivot bearing assembly comprising a pivot mount block

An adjustment system comprising:

• a pivot bolt having an upper portion and a threaded lower portion;
• a pivot nut comprising a threaded pivot nut aperture feature configured to accept the lower portion of the pivot bolt;
• a floor mount having a slot in which the pivot nut is slidingly engaged so as to be movable in a forward-backward, side-to-side and rotational direction, the floor mount having a floor mount aperture that aligns with the pivot nut aperture;
• a cover configured to mount over the floor mount and engage with the pivot nut so as to move with the pivot nut;
• wherein the lower portion of the pivot bolt is adjustably connected to the pivot nut and wherein the pivot bolt is configured to be adjusted between a first position which allows movement of the pivot nut with respect to the floor mount and a second position wherein movement of the pivot nut with respect to the floor is prevented;
• a pivot mount block comprising an aperture configured to allow the upper portion of the pivot bolt to pass through the pivot mount block, the aperture having a lower radius greater than an upper radius so as to form a ledge feature;
• and
• a bearing inserted in the aperture, wherein the ledge and a lower portion of the bearing is configured to rest on a pivot height-adjustment nut that is on the upper portion of the pivot bolt, and wherein the upper portion of the pivot bolt extends out of the pivot mount block to pivotally support a frame that is mounted on the pivot mount block.