A frame or inclosure which spaces and retains the rolling elements of a bearing, ball (as modified).
bearing retainer self-aligning part name assigned by controlling agency, 4.0000 inches minimum and 4.0010 inches maximum bore diameter, kc-135 aleron and elevator control column end item identification, 4.3995 inches minimum and 4.4000 inches maximum outside diameter, aluminum alloy 2024 overall material