A detachable part in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. It may be divided into two or more segments of 180 degrees (3.141 radians) or less. The item has a cylindrical bore and is basically spherical in its exterior design to allow for shaft misalignment. Excludes:bearing, plain, self-aligning.
qq-t-390 fed spec single material response inner layer material document and classification, 7.0625 inches nominal overall length, 6.2500 inches minimum and 6.2550 inches maximum body inside diameter, mil-s-15083 mil spec single material response outer layer material document and classification, 8.5000 inches nominal extension outside diameter