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.
maximum temperature: 550f special test features, has retention groov:ring is aluminum;material: ball 440c or 440p cres heheat treated to rockwell c56 min,retainers and ring: 17-4ph or 431 cres heat treated to rockwell 034-c38,finish: retainers,ring and ball bore - none, ball o.d. surface finish shall not exceed 6 microinches rms,no lubrication required special features, bearing, spherical part name assigned by controlling agency