A boat propeller shaft, particularly for inboard systems, is a critical component designed to transmit power from the engine to the propeller, facilitating the propulsion of the boat. The propeller shaft passes through the hull via a stuffing box or seal, which prevents water entry while allowing the shaft to rotate freely. This setup is crucial for efficient boat operation, ensuring that the propeller receives the engine's power without any significant power loss, thus maintaining optimal performance and fuel efficiency in marine vessels.
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1-2 weeks delivery time Price incl. 19% VAT The Vetus SA Propeller Shaft 1.4462 Stainless Steel is designed for durability and strength in marine environments. Fully machined, it comes with a key, lock washer, and a fairing nut with an integrated anode. Available in multiple diameters and lengths, this propeller shaft is manufactured according to ISO 4566 standards, ensuring reliable performance. It's a perfect solution for boat owners seeking a high-quality, corrosion-resistant shaft for smooth propulsion.
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€ 304,60
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1-2 weeks delivery time Price incl. 19% VAT The Exalto Propeller Shaft, made from durable 1.4462 duplex stainless steel, is fully machined and comes complete with a key, lock washer, and fairing nut (with integrated anode). Available in various diameters and lengths, this high-performance shaft is designed to meet ISO 4566 standards with a 1:10 taper. Custom sizes, tapers, and dual-end configurations can be ordered to suit your specific requirements.
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€ 516,73
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1-2 weeks delivery time Price incl. 19% VAT The Vetus BG Fiberglass Stern Tube with Cutless Bearings is an essential component for smooth and reliable propulsion in yachts and boats. Made from high-strength fiberglass (G.R.P.), it ensures durability, corrosion resistance, and frictionless shaft operation. Available in various sizes to fit 25, 30, and 35 mm shaft diameters, it is easy to install with molded plastic duct pipes directly integrated into the boat's hull.
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€ 92,33
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1-2 weeks delivery time Price incl. 19% VAT The Vetus BS Steel Stern Tube is a high-quality steel pipe designed for boat propulsion systems, featuring support bearings and slots that facilitate easy bearing replacement. Available in various diameters and lengths, these stern tubes are engineered to provide durability and efficiency in marine environments. They are ideal for use in yachts and boats, offering a robust solution for shaft mounting. The Vetus BS series is available in multiple sizes to accommodate a wide range of vessels.
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€ 239,87
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1-2 weeks delivery time Price incl. 19% VAT The Vetus BL Bronze Stern Tube is a high-quality bronze pipe designed for boat propulsion systems, featuring support bearings and slots for easy bearing replacement. Available in various diameters and lengths, this stern tube ensures a secure and reliable shaft mounting solution. The bronze construction offers excellent corrosion resistance, making it ideal for use in marine environments. Whether for new installations or replacements, the Vetus BL Stern Tube is a durable and versatile choice for boat owners and builders.
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€ 397,94
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1-2 weeks delivery time Price incl. 19% VAT The Vetus FLK Mounting Flange is designed for use with the Vetus Bronze Stern Tubes. It includes a rubber-metal bearing and is installed at the rear part of the stern tube to provide secure and reliable mounting for the shaft. Available in a variety of diameters (from 25mm to 50mm), this mounting flange ensures a stable connection, offering durability and easy installation. Perfect for boat and yacht builders, it provides both strength and flexibility in propulsion system setups.
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€ 58,21
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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 Vetus RL Bronze Rubber Cutlass Bearings are designed for shafts ranging from 20 mm to 100 mm in diameter. These bearings feature a durable bronze outer casing with a polyurethane inner lining, providing reliable performance with reduced friction. Custom sizes for larger shafts are available upon request, ensuring flexibility for a wide range of marine applications.
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€ 41,60
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1-2 weeks delivery time Price incl. 19% VAT Exalto Rubber Cutlass Bronze Bearings are designed for the hermetic and reliable operation of your marine propulsion system. These bearings are made of high-quality materials for maximum durability and efficiency. With a wide range of sizes, including both short and long options, they provide excellent performance and are ideal for use with different shaft diameters. Our specialists can assist in selecting the right bearing for your specific needs.
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€ 70,83
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1-2 weeks delivery time Price incl. 19% VAT The Vetus RULAGER Bronze Rubber Cutlass Bearings provide reliable and efficient support for your yacht or boat's propulsion system. With a durable bronze outer casing and a polyurethane inner lining, these bearings ensure smooth rotation of the shaft, helping maintain optimal performance and power transmission for the propeller. Available in a variety of sizes, the bearings are suitable for shafts from 20 mm to 100 mm in diameter, making them versatile and compatible with different vessel types.
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€ 35,93
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1-2 weeks delivery time Price incl. 19% VAT Exalto Rubber Cutlass Bronze Bearings are designed for efficient and long-lasting performance in your yacht or boat’s propulsion system. Available in a wide range of sizes, these high-quality bearings ensure smooth operation by reducing friction and wear on the shaft. The bearings are made from durable bronze and are suitable for shafts ranging from 22 mm to 80 mm in diameter. With internal dimensions in millimeters and external dimensions in inches, these bearings are easy to choose and install.
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€ 68,81
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1-2 weeks delivery time Price incl. 19% VAT etus RULAG Bronze Rubber Cutlass Bearings are specifically designed for reliable and efficient operation in water-based propulsion systems. These high-quality bearings, made with a bronze outer casing and a rubber interior, ensure smooth rotation of the propeller shaft while providing excellent sealing and reducing friction. Available in a variety of sizes, these bearings are perfect for yachts and boats. We’ve provided all dimensions in both inches and millimeters for your convenience. Our experts are available to help you choose the right size for your vessel.
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€ 34,51
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1-2 weeks delivery time Price incl. 19% VAT Exalto Rubber Cutlass Bronze Bearings are designed to provide durable and long-lasting performance for propeller shafts in marine applications. With a bronze body and a rubber lining, they offer excellent sealing properties and ensure smooth rotation of the propeller shaft. These bearings are available in a wide range of sizes to accommodate different shaft and tube diameters.
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€ 69,89
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1-2 weeks delivery time Price incl. 19% VAT Vetus RULAGER Phenol Rubber Cutlass Bearings are lightweight, durable bearings designed for use with shafts ranging from 20 mm to 100 mm in diameter. Made with a phenol outer casing and polyurethane inner lining, these bearings offer excellent resistance to rust and corrosion. They are ideal for aluminum vessels and are easy to replace. Larger diameter bearings are available upon request.
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€ 58,15
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How does the material of an inboard boat propeller shaft impact its performance and longevity?
The material of an inboard boat propeller shaft significantly influences both its performance and longevity. Typically crafted from stainless steel or sometimes bronze, these materials are chosen for their strength, resistance to corrosion, and ability to withstand the harsh marine environment. Stainless steel shafts, for example, offer excellent toughness and resistance to pitting and crevice corrosion, crucial for maintaining the integrity and efficiency of the marine propeller shaft over time. The durability of these materials ensures that the shaft can handle the mechanical stresses of transmitting power from the engine to the propeller without deforming or failing, thereby providing reliable performance and reducing the need for frequent replacements.
The precision in manufacturing inboard propeller shafts is crucial for optimal performance and longevity. Leading manufacturers use CNC (Computer Numerical Control) machining to ensure that each prop shaft is crafted to exact specifications, maintaining balance and reducing vibrations. This precision helps in achieving a seamless fit between the prop shaft and the prop hub, which is essential for the smooth transmission of power. Utilizing advanced manufacturing techniques, these inboard propellers are designed to meet the high standards of the marine industry, ensuring reliable and efficient operation in various boating conditions.
What are the common types of bearings used with marine prop shafts to ensure smooth operation?
Common types of bearings used with marine propeller shafts include cutlass bearings and roller bearings. Cutlass bearings, made from durable rubber and sometimes embedded with brass or other metals, are particularly favored for their ability to handle the high loads and abrasive conditions typical in the marine environment. These bearings ensure smooth operation by allowing the boat propeller shaft to rotate freely while minimizing friction and wear. Roller bearings, although less common in marine settings due to their susceptibility to corrosion, may also be used in some inboard boat propeller shaft designs where sealed units can protect against water ingress, offering efficient rotational performance and reliability.
Stainless steel inboard propellers and custom propeller solutions are crucial for achieving high performance and reliability in various boating conditions. Boat builders often choose stainless steel shafts and custom inboard propellers for their strength and resistance to corrosion. Various companies offer a range of shaft sizes and materials, including A19, A17, and A22 stainless shafts, ensuring durability and precision. Custom inboard propellers and shafts are machined to exact specifications, such as SAE J755 standards, to provide the best fit and performance. These components are essential for maintaining the integrity of the boat's propulsion system, reducing the risk of issues like bent prop shafts, and ensuring consistent and efficient power delivery.
What maintenance practices are essential for ensuring the longevity of marine propeller shafts?
Regular maintenance is crucial to ensure the longevity of marine propeller shafts. Key practices include frequent inspections for signs of wear or corrosion, particularly on inboard boat propeller shafts which are constantly exposed to marine elements. Lubrication of the shaft and its bearings is also essential to reduce friction and prevent overheating during operation. Additionally, it's important to check the alignment of the shaft periodically to ensure it has not shifted, as improper alignment can lead to uneven wear and potential damage to both the shaft and associated components, thereby maintaining optimal performance of the boat propeller shaft.
Maintaining the boat shaft also involves understanding the specific needs and variations of your equipment. General propeller-gp and exclusive boat shaft solutions are available for different boating requirements, ensuring the right fit and performance. OEM stock parts, including propeller tapers, are known throughout the marine industry for their reliability. Contact us for more information on our selection of precision-machined, high-strength shafts, which are cut to SAE J755 standards and offered with quick delivery. Our products strive to provide exceptional and innovative solutions for all boating needs. We look forward to assisting you with the finest boat shafts and components to support your important boating skills.
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