The connecting flanges
Secondly, we discuss the connection flanges of the stern tube. Both ends of the stern tube have a flange. The one on the aft is usually welded to the stern tube and the forward one is bolted. The flanges are used for mounting the seal boxes and to feed through the pipes for lubrication, drain and temperature sensors.
The piping inside the stern tube
The final part is the piping inside the stern tube. This part is mostly located at the top and bottom of the stern tube (fed through the grooves of the bearings) and attached with brackets to the stern tube. Ideally, the piping should be made of stainless steel. Especially for pipes which are used for an air type seal this is important, because rust particles can damage or block the seals or the orifices in the system.
Different types of stern tubes are:
- Press fit stern tubes
- Chockfast installed stern tubes
- Supporting bearings stern tube
In a second blog we will tell more about these different types of stern tubes.
What can Lagersmit do for you?
Lagersmit offers reliable sealing solutions to keep your ship going: the Supreme seals. In addition to these seals, a complete package of stern tube, bearings and seals can be delivered for plug and play installation on your vessel. There are solutions for both new build and retrofit applications. Contact one of our experts if you have any questions!
Find out more in our blog about the Supreme seals applications for stern tube systems.
The Supreme Ventus and Supreme Athmos are our green sealing solutions, both ensure zero-emission from oil.