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 Cap for Propeller Shaft, with product number 2728911 FNI, is a durable replacement designed to ensure optimal performance and longevity for your vessel. Its perfect fit allows for hassle-free installation and enhances overall efficiency in various marine applications.
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€ 1,57
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1-2 weeks delivery time Price incl. 19% VAT The Grease For Propeller Shaft 2728912 FNI is specially formulated for marine applications, providing optimal lubrication and protection. It reduces friction and wear, offers excellent water resistance, and is compatible with various propeller shaft materials, ensuring smooth operation and prolonging component life.
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€ 7,02
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Universal Series, featuring a 25 mm size and product number 2732025 FNI, is made of brass and rubber. Its hydro-lubricated design ensures reliable performance, with internal dimensions in metric and external dimensions in inches, making it suitable for various applications.
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€ 42,70
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Universal Series is designed for optimal performance with a robust construction that ensures longevity and reliability. It features a hydro-lubricated design made from brass and rubber, with an internal diameter of 30 mm (metric) and an external diameter available in inches, making it an excellent choice for various industrial and commercial applications.
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€ 50,53
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Universal Series features a hydro-lubricated design made from brass and rubber, providing durability and versatility. It has an internal diameter of 35 mm and an external diameter available in inches, making it suitable for various applications.
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€ 61,48
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Universal Series is a hydro-lubricated bearing made from brass and rubber, featuring a 40 mm diameter. It has a metric internal diameter and an external diameter measured in inches, ensuring durability and reliable performance in various applications.
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€ 68,45
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Universal Series, with product number 2732045 FNI, features a 45 mm size and is designed as a hydro-lubricated shaft bearing made from brass and rubber, ensuring reliable performance with a metric internal diameter and an external diameter in inches.
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€ 94,60
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Universal Series is a hydro-lubricated bearing made from brass and rubber, designed for versatile applications with an internal diameter of 50 mm, ensuring durability and reliable performance.
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€ 128,62
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Universal Series, with FNI product number 2732060, is a 60 mm hydro-lubricated shaft bearing made from brass and rubber. It features an internal diameter in metric and an external diameter in inches, ensuring reliable support and efficient operation in various applications.
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€ 196,45
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Universal Series is a durable and effective solution for various applications, featuring a hydro-lubricated design. Constructed from high-quality brass and rubber, it offers a 90 mm internal diameter and is suitable for diverse uses, with external dimensions available in inches.
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€ 517,37
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Special Series, with FNI product number 2732125, features a 25 mm size and is made from brass and rubber. This hydro-lubricated bearing is designed for durability and reliability, making it a special type suited for various mechanical applications.
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€ 42,70
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Special Series features a 30 mm diameter and is constructed from brass with rubber for enhanced durability. It is hydro lubricated and designed as a special type, making it suitable for various applications in metric sizes. The product number is 2732130 FNI.
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€ 50,53
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Special Series, with product number 2732135 FNI, features a 35 mm size and is made of brass with rubber components. This specially designed hydro-lubricated bearing ensures durability and efficiency in various applications.
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€ 59,44
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Special Series features a 40 mm diameter and is designed for optimal performance in demanding environments. Made from brass with a rubber lining, this hydro-lubricated bearing ensures durability and efficiency, making it a reliable choice for various applications.
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€ 68,45
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Special Series, with a diameter of 45 mm and product number 2732145 FNI, is made of brass and rubber, designed for hydro-lubricated applications, ensuring reliable performance in various mechanical setups.
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€ 94,60
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Special Series, with product number 2732150 FNI, features a 50 mm size and is constructed from brass and rubber. This hydro-lubricated bearing is designed for durability and reliability in various applications, ensuring optimal performance.
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€ 130,08
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Special Series, featuring product number 2732155 FNI, is a 55 mm hydro-lubricated bearing made of brass and rubber. This special type is designed for enhanced durability and efficiency in various applications.
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€ 170,30
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Special Series, with FNI product number 2732160, features a 60 mm size and is made of brass and rubber. This special type of bearing is hydro-lubricated, ensuring smooth operation and enhanced durability for various applications.
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€ 188,09
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Special Series 65 mm (Product Number: 2732165 FNI) is a hydro-lubricated bearing made from brass and rubber, designed for high performance in demanding applications. Its unique construction ensures reliable support and durability, making it ideal for various uses.
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€ 308,62
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1-2 weeks delivery time Price incl. 19% VAT The Brass Shaft Bearing Special Series, product number 2732170 FNI, features a 70 mm size and is made from brass with rubber. This special type of hydro-lubricated bearing is designed for metric Ø applications, ensuring smooth and reliable performance.
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€ 304
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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