Theme: Stern tube Lubrication systems Oil lubricated stern tubes. Oil lubricated stern tubes: Progress from sea water to early oil lubricated stern tubes involved an exchange of the wooden bearing in its bronze sleeve for a Closed stern tube system with one gravity tank (source: Authors) Download Scientific Diagram Water lubricated sterntube seals SKF Bearings Oil & Water Falck Formco Closed oil lubrication stern tube system replaces merchant ship's water lubricated bearings ScienceDirect Experimental Study on the Effects of Controllable Parameters on the Healthy Operation of SF 2A Material Water Lubricated Stern Bearing in Multi Point Ultra Long Shaft Systems of Ships