This standard for spherical bearings, joint
type (without rolling elements) has been established
for the purpose of defining the characteristics of these
bearings such as boundary dimensions, tolerances
and terminology. This style of bearing consists of an
outer ring having an inner concave sphered sliding
contact surface and an inner ring having a matched
outer convex sphered sliding contact surface. Two
general styles, related to manufacturing method are
included, swaged (1.2) and fractured (1.3).