Cutless bearing refer to rubber lined bearings operating with water lubrication on an elastohydrodynami principle. The fluted design of the bearing utilizes basis lubrication principles to allow formation of hydrodynamic water wadges at the bearing surface by flow of water from the groves. Cutless Bearing have a wide spectrum of marine applications, which included propeller shaft bearings in stem tubes or struts, rudder bearings and cutter bearings, in a variety of craft. Besides marine applications, cutless bearing are also used in hydroelectric turbines, centrufugal pupms and other water submersible devices. When used in propeller shaft housing, the cutless bearing provides a structural support with built in resilience that allows the bearing to yield in sympathy with the bending of the boats structure and thus prevents shaft bearing misalignment or shaft wear. The bearing also reduces vibration and the volume of teh noise being transmitted into the boat. It also absorbs shock and has and advantage of being almost maintenance free.