A propeller shaft seal, often integrated into a stern tube shaft seal or a propeller shaft stuffing box, is a vital component in marine vessels. It ensures a watertight seal around the propeller shaft, preventing water from entering the boat through the stern tube while allowing the shaft to rotate freely.
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1-2 weeks delivery time Price incl. 19% VAT The STB Stuffing Box Seal Kit is designed for use in water installations. This high-quality kit features a flexible bellows with a clamp, ensuring a tight seal. It comes complete with a safety ring for the assembly and tube. The water supply is regulated through the bushing, and since the attachment is not powered, it offers a reliable, simple solution for shaft sealing in marine applications. Available in a variety of sizes for different shaft and tube diameters.
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€ 83,79
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1-2 weeks delivery time Price incl. 19% VAT The STB Propeller Shaft Seal is designed to seal the stern tube with water supply in marine water lubrication systems. This high-quality seal ensures long-lasting and reliable operation, with its flexible bellows and clamp mechanism, and comes complete with a lubrication tube.
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€ 88,26
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1-2 weeks delivery time Price incl. 19% VAT The Vetus ZWBH Flexible Triple Shaft Lip Seal Inner Bearing is designed for water-lubricated shaft lines. This self-aligning bearing/seal features a triple seal system for enhanced safety and reliability. It includes a 10 mm water hose connector and operates in a temperature range from 15°C to +85°C. Suitable for use with bronze, steel, and GRP deadwood pipes, this bearing ensures durability and optimal performance.
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€ 102,37
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1-2 weeks delivery time Price incl. 19% VAT The Vetus ZWB Bronze Inner Bearing Shaft Seal with Dual Lip is designed to provide reliable protection against water leakage. This self-aligning internal bearing features a double seal, ensuring optimal sealing performance for your yacht’s propulsion system. It’s available in multiple diameters and is equipped with a replaceable gasket, making it a durable choice for various marine applications.
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€ 275
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1-2 weeks delivery time Price incl. 19% VAT The Tides Marine SeriesOne Stern Tube Shaft Seal is designed for marine propulsion systems with flexible performance. Made from high-quality composite material, it’s resistant to temperature changes and does not absorb water. This seal allows for movement of the shaft while maintaining a tight water seal. Available for 25 mm and 30 mm shafts, and other sizes can be requested.
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€ 311,17
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1-2 weeks delivery time Price incl. 19% VAT The Tides Marine SureSeal Propeller Shaft Seal System is designed for use with cardan shaft lubrication, offering a high-quality, long-lasting composite material that resists water absorption and temperature changes. This seal features a flexible bellows and water intake, with a removable front cover for easy seal replacement without shaft removal.
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€ 525,10
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1-2 weeks delivery time Price incl. 19% VAT The Hollex Marine Shaft Sealing system is designed for water lubrication of the cardan shaft. With its sliding ring featuring a polished surface and a combination of stainless steel and carbon, this seal ensures a perfect fit with minimal friction, enhancing durability and performance. Available in a wide range of sizes, it is the ideal solution for reliable, long-lasting shaft sealing.
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1-2 weeks delivery time Price incl. 19% VAT The Exalto Vetflexseal Stern Tube Seal offers a high-quality solution for sealing marine stern tubes. Made from a durable composite material, it features a flexible bellows structure for easy installation. The seal must be positioned close to the bearing and requires manual lubrication, as it does not have an independent supply of lubrication.
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€ 490,27
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1-2 weeks delivery time Price incl. 19% VAT The Hollex 1V and AV propeller shaft seals offer exceptional durability and performance for securing the propeller shaft. Made from high-quality bronze and designed for various shaft diameters, these seals ensure a reliable and tight fit, providing long-lasting protection against water ingress.
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€ 219,02
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1-2 weeks delivery time Price incl. 19% VAT The Hollex Heavy Duty 2V and BV propeller shaft seals are designed for demanding marine environments, offering excellent protection against water ingress. Made from durable bronze, these seals are available in multiple diameters, ensuring a perfect fit for a wide range of propeller shafts.
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€ 405,48
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What are the primary functions of a propeller shaft seal in a marine vessel?
The primary functions of a propeller shaft seal in a marine vessel are to prevent water ingress and to maintain a watertight seal around the boat's propeller shaft. A dripless shaft seal, such as the PSS shaft seal by PYI, is a mechanical face seal that eliminates the maintenance and constant adjustment associated with traditional shaft seals. The PSS seal utilizes a stationary carbon flange and a stainless steel rotor to create a watertight barrier, thus preventing wear to the propeller shaft and ensuring smooth, dripless operation. Boat builders and boat yards recognize the advantages and value of installing the PSS shaft seal for its reliability and cost-effectiveness.
How does the PSS Type A shaft seal differ from other mechanical face seal?
The PSS Type A shaft seal differs from other mechanical face seals primarily due to its dripless design, which eliminates the need for constant maintenance and adjustment, significantly reducing the cost associated with traditional seals. Secured to the shaft with set screws and featuring flat surfaces between the rotating rotor and stationary carbon flange, the PSS Type A shaft seal ensures a watertight seal and compensates for most misalignment and vibration problems.
What is the primary function of a lip seal in a propeller shaft seal system?
The primary function of a lip seal in a propeller shaft seal system is to prevent water ingress and leakage around the shaft, ensuring a watertight environment. This is achieved by creating a mechanical seal around the shaft using rubber lips and o-rings that rotate with the shaft, maintaining constant pressure. PSS shaft seals are designed as dripless seals, eliminating the need for frequent maintenance and providing reliable performance in both commercial and recreational marine applications.
What types of Boat Propeller Shaft do you have in your catalog?
Stern Tubes for Boats, Cutlass Bearings, Propeller Shaft Seals, Boat Propeller Nuts, Flexible Shaft Couplings, Marine CV Joint & Drive Shafts