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The SWL – steel water-lubricated sterntube is designed for use in steel vessels, utilising Aqualube marine bearings and water lubrication.

The sterntube is supplied with heavy steel boss aft, for direct welding into the vessel. Where required struts for hull attachment can be supplied. The inboard end is fitted with a flanged stuffing box gland/bearing as standard, but other types of seal can be supplied. A typical installation is shown in the diagram.

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