DS EN 4198:2006 Aerospace Series - Rod-Ends, Adjustable Self-Aligning Plain Bearing With Self-Lubricating Liner And Threaded Shank In Corrosion Resisting Steel - Dimensions And Loads Defines the characteristics of adjustable rod-ends consisting of a self-aligning ball bearing with self-lubricating liner, EN 2501, a rod-end with threaded shank consisting of a circumferential groove