Sea Water Lubricated Stern Tube Bearings Wärtsilä envirosafe composite bearings. the wärtsilä envirosafe composite bearing offers ship operators a highly engineered, environmentally compliant solution specifically designed for stern tube applications. our composite bearings have undergone extensive research and validation, which enables the use of the latest technology and resin. Introduction to water lubricated stern tube bearings global effects of covid 19 may result in significant changes to the operation and maintenance of commercial vessels. with reduced opportunity for planned dockings and restricted travel for visiting service technicians, this guide will help ensure the ongoing reliability of your water lubricated stern tube bearings. sterntube bearings are […].
What Is The Stern Tube Of A Ship In this stern tube, we use sea water in conjunction with wood bearings to lubricate the shaft in the stern tube. the hardwood is sourced from a tree known as the lignum vitae (tree of life) and is fitted between the stern tube and the shaft. compared to an oil lubricated tube, the sea water lubricated tube provides better cooling and. The thordon seathigor seal is a mechanical face seal for 300mm (11.8") to 750mm (29.5") water lubricated propeller shafts found in yachts, cruise ships, merchant ships and naval vessels. the seathigor has evolved from a design first tested in 2003 and improved during the next decade. learn more. Ed on more commercial and navy vessels than any other.durablue® is a cost e. fective stern tube bearing solution for blue water use.durablue®. earing is dimensionally stable and abrasion resistant.swelling in sea water is virtually. eliminated with our proprietary composite resin matrix. durablue® thermoset polymer matrix is reinforced with. Water lubricated stern tube bearings are often used on modern ships. this environmentally friendly bearing is much cheaper than popular oil lubricated one. in addition, salinity of sea water.
Stern Tube Sea Water Lubrication System Lignum Vitae Design Wear Ed on more commercial and navy vessels than any other.durablue® is a cost e. fective stern tube bearing solution for blue water use.durablue®. earing is dimensionally stable and abrasion resistant.swelling in sea water is virtually. eliminated with our proprietary composite resin matrix. durablue® thermoset polymer matrix is reinforced with. Water lubricated stern tube bearings are often used on modern ships. this environmentally friendly bearing is much cheaper than popular oil lubricated one. in addition, salinity of sea water. The inboard water lubricated stern tube seal and bearings, it’s essential to maintain a high quality flush water supply, free from abrasives. poor water quality will lead to accelerated wear in key stern tube components and can lead to increased docking frequencies for replacement bearings. our wärtsilä water quality systems are designed to. Theoretically, water lubricated stern tube bearings operate in hydrodynamic regime. loads are low because of high bearing length to shaft diameter ratio (l d). sliding speed depends on engine type, main gear ratio and ship size. generally, the speed could be even higher than 3 meters per second, which should be sufficient for hydrodynamic.
Comments are closed.