A bearing assembly having a hanger with an opening therethrough, a substantially cylindrical shell with bearing material extending radially inwardly thereof, the cylindrical shell fitting within the opening, outwardly extending peripheral flanges on the semi-cylindrical shell and flanges extending radially inwardly into the opening from the perimeter. One set of flanges is male and the other set being female and extends only partly around the periphery of the shell to form an unflanged peripheral space. The other set of flanges extends only partly around the perimeter to form an unflanged perimeter portion of the opening. The perimeter portion is at least equal in length to the flange on said semi-cylindrical shell and the peripheral space is at least equal in length to the flange on said perimeter. The male and female flange are complementary to each other, and the latter is adapted to receive former upon rotation of the semi-cylindrical shell in said opening.