Marine alloy bearings play a crucial role in the marine industry. These bearings are specifically designed to withstand the harsh conditions of the marine environment.

Marine alloy bearings are typically made from alloys that possess high strength and corrosion - resistance properties. They need to endure the constant exposure to seawater, which is highly corrosive. These alloys are often a combination of metals such as copper, tin, zinc, and sometimes nickel. The high - strength nature of the alloy allows the bearings to support heavy loads, which is common in marine propulsion systems. They also have good heat - dissipation capabilities, which is essential as they are subject to friction during operation. In addition, proper lubrication systems are used in conjunction with these bearings to further reduce friction and wear, ensuring smooth and efficient operation of marine machinery, from ship engines to propeller shafts.

The stern tube white alloy bearing is an important part of a ship's stern tube assembly.

White alloy, usually a tin - based alloy, is used in these bearings. This alloy provides excellent antifriction and conformability properties. It can adapt well to the shape of the rotating shaft, reducing wear. The white alloy is also relatively soft, which helps in preventing damage to the shaft in case of any misalignment or minor impacts. In the stern tube, these bearings support the stern shaft, which transmits power from the engine to the propeller. They are designed to operate in the presence of seawater, so they need to have good corrosion resistance. Lubrication, often with seawater or a special lubricant, is carefully managed to ensure the proper functioning of the white alloy bearing and to minimize friction and wear, thereby contributing to the overall efficiency and reliability of the ship's propulsion system.