MULTIPLE AXIS ADJUSTABLE PIVOT BEARING ASSEMBLY COMPRISING A PIVOT MOUNT BLOCK
An adjustment system comprising: 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.
1 . An adjustment system comprising:
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.
2 . The adjustment system of claim 1 , wherein the pivot height-adjustment nut is located so as to be accessible through a gap between the pivot mount block and a pivot cover.
3 . The adjustment system of claim 2 , wherein the pivot height-adjustment nut is accessed by a flat tool such as a spanner wrench, wherein the adjustment allows the pivot height-adjustment nut to move upward or downward on the pivot bolt by rotation to adjust the height of the frame.
4 . The adjustment system of claim 1 , wherein the bearing is made at least partially of bronze.
5 . The adjustment system of claim 1 , wherein the bearing is cast.
6 . The adjustment system of claim 1 , wherein the bearing comprises a graphite filled groove on the inside of the bearing configured to distribute the graphite evenly along an inside surface of the bearing.
7 . The adjustment system of claim 1 , wherein the bearing is a combination bearing designed to carry radial, axial and thrust loads to pivotally support a frame that is mounted on the pivot mount block.
8 . The adjustment system of claim 1 , wherein the second bearing is made at least partially of bronze.
9 . The adjustment system of claim 1 , wherein the second bearing is cast.
10 . The adjustment system of claim 1 , wherein the second bearing includes graphite plugs to distribute lubricant along a surface of the thrust bearing.