What is a stern tube?
What is a stern tube? A stern tube is a tubular structure in a ship shaft used to support and protect the stern shaft. The task of the stern tube device is to support the stern shaft or propeller shaft and allow it to reliably vent out of the ship, while preventing a large amount of outboard water from leaking into the ship and oil leakage. The stern tube is generally welded directly on the hull structure in the form of cast steel parts, and the bearings are pressed forward and back after processing or using the flexible pouring type of finished products, and then the propeller shaft is installed in the stern shaft tube. The operation and load bearing of the propeller shaft are borne by the stern shaft tube and its bearing. Stern tube is an important part of Marine propulsion system, its manufacturing process and material quality directly affect the performance and safety of the ship. Therefore, there are very high requirements for the manufacture an...