When I thought things couldn't get any worse, they have looks like we might have fried our propeller shaft Sailing Britican What is stern tube? its working and function Marine InfoSite Effective stern tube lubrication is critical for smooth and reliable sailing! Check out our post to learn about the essential components of stern tube lubrication. Explore our Marine Engine courses on Do you know what's a Stern tube seal and how it's functions? A stern tube seal is a critical component in a ship's propulsion system. It is designed to prevent water from