CLOSED WATER LUBRICATED STERN TUBE SYSTEM
Svenska Bearing’s Closed Water Lubricated Stern Tube System solution is a safe, energy saving and environmentally friendly way to lubricate propeller shafts. In comparison to an oil lubricated system the Svenska Bearing’s closed water lubricated Stern Tube system has zero pollution.
The system also provides a significant decrease of bearing friction losses that will ensure continues fuel saving. The closed Water Quality System ensures minimum bearing wear due to active hydrostatic shaft lift support during operation at lower rpm. The system circulates the W.Q.S. Lube™ with a sufficient rate and cleanliness in a closed loop.
All components in the system are designed and specified for state of the art marine standards and for highest possible operation reliability, with full pump redundancy for lubrication. The system is also equipped with an emergency mode connected to the onboard seawater system for intermittent operation in case of fire.
First Closed Water Lubricated System Solution in operation” since 2014, with amassing and impressive hours of successful performance.
Shaft diameters up to 869 mm in service
Stern Tubes up to 21 m delivered (3-bearing solution)
W.Q.S unit
Next generation marine technology for a safe and secure navigation
The W.Q.S unit is designed to supply the Stern Tube with lubrication and cooling media.
With an advanced monitoring system, it ensures safe and secure navigation by offering comprehensive data, including warnings, alarms, and bearing wear indicators.
- Current bearing wear is monitored and recorded.
- Equipped with warning and alarm points.
- Multiple security levels ensure complete safety.
- Supports both local and remote operation.
- Features salt water resistant components for extended technical life span.
- Operates independently of outboard water quality.
W.Q.S LUBE™
Eco-Friendly Lubrication: A Superior Alternative to Pure Seawater
W.Q.S. Lube™ an eco-friendly, zero-pollution water-based lubrication with superior benefits over pure seawater. Designed to be used with the W.Q.S. system, ensuring the longevity of Stern Tube bearings and system components.
- Higher Viscosity: Increased viscosity compared to water, reduces bearing friction losses, resulting in continuous fuel savings.
- Corrosion Protection: Acts as a corrosion protective lubricant, extending the lifespan of system components.
