Multiple axis adjustable pivot bearing assembly comprising a pivot mount block

An adjustment system comprising:

• a pivot nut comprising a pivot nut aperture feature configured to accept the lower portion of a pivot bolt;
• a floor mount having a slot in which the pivot nut is slidingly engaged so as to have a movement including forward-backward, side-to-side and rotational, 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;
• a pivot mount block comprising an aperture configured to allow an 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 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, or on a second bearing that rests on the pivot-height-adjustment nut 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.