A mooring unit for a vessel comprising an arm, a universal joint, and a chain stopper. The universal joint is arranged between the vessel and the arm, and the universal joint is adapted to be pivotally coupled to a bracket and the arm enabling the mooring unit to pivot about a first axis and a second pivot axis, said first and second pivot axes are arranged perpendicular to each other in substantially the same plane. The universal joint includes a link element for receiving a first and second ear pair of the respective arm and bracket. The ears and link element are coupled through journals. The link element includes walls extending on both sides of the respective ears so that the respective journals are supported by both walls.