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 Duplex 1-4462 stainless steel propeller shaft, fully machined, comes complete with key, lock washer and fairing nut (with integrated anode). The taper and keyway are in accordance with ISO 4566 or as requested by the customer.
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€ 304,60
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1-2 weeks delivery time Price incl. 19% VAT The Exalto Duplex 1-4462 stainless steel propeller shaft, fully machined, comes complete with key, lock washer and fairing nut (with integrated anode). The taper 1:10 of the spool groove is made in accordance with ISO 4566. On order, we can make a shaft of any size, with any taper and with two ends.
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€ 516,73
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1-2 weeks delivery time Price incl. 19% VAT G.R.P. deadwood pipes for shafts with diameters of 25, 30 and 35 mm. Plastic deadwood pipes are installed, formed directly into the body.
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€ 92,33
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1-2 weeks delivery time Price incl. 19% VAT Steel stern pipe with support bearings. Slots in the pipe are made to facilitate bearing replacement. The shaft diameter and length of the stern tube are specified.
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€ 239,87
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1-2 weeks delivery time Price incl. 19% VAT Bronze deadwood pipe with support bearings. Slots in the pipe are made to facilitate bearing replacement. The shaft diameter and length of the stern tube are specified. The shaft diameter and length of the stern tube are specified.
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€ 397,94
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1-2 weeks delivery time Price incl. 19% VAT Rubber-metal bearing and mounting flange are installed in rear part of bronze stern tube.
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€ 58,21
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1-2 weeks delivery time Price incl. 19% VAT This seal is used in water installations. Attachment consists of flexible bellows with clamp. Comes complete with a safety ring for the assembly and tube. The water supply is controlled on the bushing as the attachment is not powered. All dimensions in millimeters. Quality goods from Europe only for you.
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€ 83,79
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1-2 weeks delivery time Price incl. 19% VAT Sealing of STB Seal stern pipe with water supply. It is used in water lubrication systems and has its own water source. The seal consists of a flexible bellows and a clamp. Supplied with lubrication tube. All dimensions in millimeters. The best products from Europe for your yacht, which will last a long time and ensure high-quality operation.
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€ 88,26
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1-2 weeks delivery time Price incl. 19% VAT Vetus ZWBH self-aligning bearing/seal with triple seal is designed for use in shaft lines with water lubrication. It has a 10 mm water hose connector. Operating temperature from 15 ° S to + 85 ° S. It can be used with bronze, steel and GRP deadwood pipes.
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€ 102,37
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1-2 weeks delivery time Price incl. 19% VAT Vetus self-aligning internal bearing (gland), has a double seal for reliable protection against water leakage.
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€ 275
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1-2 weeks delivery time Price incl. 19% VAT The Tides Marine SeriesOne duct seal can be used with lubrication during installation. The cardan shaft is made of a high quality composite material that does not absorb water and is resistant to temperature changes. These seals will allow any movement of the axle, thanks to their flexibility. The Tides Marine SeriesOne is available for 25 mm and 30 mm shafts. Other sizes are available on request.
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€ 311,17
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1-2 weeks delivery time Price incl. 19% VAT The seals of the Tides Marine SureSeal are suitable for use with cardan shaft lubrication. The cardan shaft is characterized by the use of a high-quality composite material with a long service life. It does not absorb water and is resistant to temperature changes. The Sure Seal comes standard with a flexible bellows and water intake. Removable front cover, will help replace the seal without removing the shaft.
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€ 525,10
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1-2 weeks delivery time Price incl. 19% VAT The Hollex deadwood tube seal is used with water lubrication of the cardan shaft. It overlaps the axes in the longitudinal direction of the shaft. Sliding ring has polished surface. The combination of stainless steel with carbon will provide an ideal fit. The low coefficient of friction makes the structure durable. The best products from Europe for your ship.
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1-2 weeks delivery time Price incl. 19% VAT Supplied for shafts from 20 mm to 100 mm in diameter. The outer body is made of bronze, the inner part is made of polyurethane. On a separate request, we can put bearings on larger diameter shafts.
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€ 41,60
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1-2 weeks delivery time Price incl. 19% VAT The highest quality products for the hermetic operation of your system. A Goodrich bearing that will best serve your valolin, with which the rotation of the propeller will be the most reliable. For convenience, we have already converted the diameter to millimeters, which means that you have the choice. And also, our specialists will always tell you which one you need.
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€ 70,83
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1-2 weeks delivery time Price incl. 19% VAT Bronze Goodrich bearings from Vetus. With them, your valoline will always serve in the right way, and the propeller will always work well, ensuring its full power. We have already translated everything into millimeters for a more convenient diameter calculation. A choice with which our specialists can also help.
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€ 35,93
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1-2 weeks delivery time Price incl. 19% VAT Goodrich bearing from Exalto. Bronze bushings for proper and high-quality operation of your propellers. We will always be happy to help with diameter determination. We have already translated the diameter from millimeters for your greater convenience.
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€ 68,81
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1-2 weeks delivery time Price incl. 19% VAT Bronze Goodrich bearings from Vetus, Rulag series. Rubber-metal bearing, which is used when operating mechanisms in an aqueous medium. Gudrich bushing ensures tightness and free rotation of propeller shaft. For the greatest convenience of determining the diameter, we have already translated everything into millimeters. Also, our specialists will always help with choosing the right option.
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€ 34,51
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1-2 weeks delivery time Price incl. 19% VAT Goodrich Exalto bronze bearings. A high-quality product for reliable operation of your propeller and correct design of the valolin. It will last for many years and never cause problems. We translated the diameter into millimeters for the most convenient calculation. However, our specialists are always ready to help you with your choice.
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€ 69,89
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1-2 weeks delivery time Price incl. 19% VAT Supplied for shafts from 20 mm to 100 mm in diameter. The outer case is made of phenol, the inner part is made of polyurethane. This bearing is lighter in weight, does not rust, changes easily and is ideal for aluminum vessels. On a separate request, we can put bearings on larger diameter shafts.
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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