Morse 1" X 1 1/2" X 4" Brass Strut Bearing BonitoBrass sleeve bearing provides a wear surface between prop shafts & struts or rudder shafts & rudder ports. Brass cutlass bearing High-quality brass outer shell super-bonded to a fluted rubber 1 in. inside diameter 1 1/2 in. outside diameter 4 in. long