The EasyStern® System is a stern tube system that Amartech developed in own management and that is applied all over the world with satisfaction. The Vinylester inner tube will provide a watertight stern tube-assembly mounted between two EasyStern® ClampSeals within the mild steel outer tube. The outer tube is welded into position by the boatbuilder, and may warp during the welding-process, but with the Vinylester inner tube this does not present any problem. There is enough clearance between the inner- and outer tube to allow for any welding distortion within the stern tube-assembly.
