[Marine One]

Clarification - A loss of clamp load does not "spin bearings". When you see a spun bearing, you also see it extrude out from the sides. This is not because something was loose, but because everything was tight. In other words, the loose cap and spun bearing is a symptom of a larger problem.

A loss of clamp load will result in a bearing that retains its original width, but flattens out and has "bite / chomp" type witness marks. This is from the cyclic load on the rod journal...open, close, open, close...bite, chomp, bote, chomp....