Kemel Stern Tube Seals
Stern Tube Bearing Failures: What are the Possible Causes?
Blog | November 4th, 2019A stern tube bearing failure is never viewed as a trivial issue. Apart from anything else, that seal is a route to the interior of a boat’s hull. If seal integrity goes, the inevitable loss of hull fidelity will likely adversely affect the rest of the boat. Keep that thought in mind as you learn […]
Differences Between Oil-Lubricated and Water-Lubricated Stern Tube Bearings
Blog | July 5th, 2019Without wishing to state the obvious, water-lubricated stern tubes use H2O as a shaft lubrication fluid. For oil-lubricated solutions, a greasy fluid provides a slippery shaft greasing feature. These are the clear-cut differences, as plainly assigned by their technical labels. So far so good, the principal difference is right there, right in the fluid medium. […]
Understanding Stern Tube System in Marine Vessel Operations
Blog | June 4th, 2019Stern tube systems are classified as powertrain intermediaries in a marine vessel’s propulsion mechanism. First comes the propeller, then there’s the sealed stern tube assembly, which links the propeller shaft to a ship’s main engine. In effect, there’s a hole in the hull for a ship’s drive shaft to reach into the surrounding water. The […]
Stern Tube Integrity Test During Dry Dock: How Is It Done?
Blog | February 14th, 2019Without making a habit of stating the obvious, let’s just say that a stern tube integrity test isn’t a job that’s done at sea. That tube is located way below the waterline. A boat’s propeller shaft passes through the shaft, so it’s about as near to the bottom of a vessel’s hull as you can […]
Uses and Applications of Kemel Propeller Nut
Blog | July 11th, 2018Before this post dives into yet another innovative design principle, a cautionary note should be issued. Marine engineers, masters of all things mechanical, they know that hydraulic systems use dangerous pressures. For that reason, high-pressure hydraulic systems must be worked upon with all due care. Having opened with this reproach, we’ve gotten ahead of ourselves. […]