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 The Vetus BULFL1213 Bullflex 12 Type Coupling redefines driving comfort in marine applications, offering optimal vibration dampening for a superior boating experience. Tailored for the demanding needs of the sea, this coupling efficiently mitigates torsional vibrations induced by load changes or uneven engine operation, especially at low speeds. With a robust design featuring a super-elastic rubber element and puncture protection (axial and radial), it ensures a noiseless and vibration-damping connection between the motor and the substantial 1 ¾" propeller shaft. Boasting remarkable flexibility, exceptional vibration damping, and the capacity to tolerate a 2º deviation, the Bullflex coupling stands out as a reliable, high-performance solution. Key advantages include impeccable shaft centering, even during reversing, a removable centering ring, and a built-in dynamic pressure bearing. The absence of a conical clamping hub simplifies perfect centering and facilitates easy assembly/disassembly. Suitable for various connection sizes, the Bullflex 12 Type Coupling is a versatile choice for marine propulsion systems, providing unparalleled reliability and comfort on the water.
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$ 1.756,89
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1-2 weeks delivery time The Vetus BULFL1612 Bullflex 16 Type Coupling exemplifies VETUS' commitment to elevated driving comfort in marine applications. Specifically engineered for optimal vibration dampening, this coupling effectively mitigates torsional vibrations induced by load changes or unevenly running engines, particularly at low speeds. Its super-elastic rubber element, fortified with puncture protection (axial and radial), establishes a backlash-free, noiseless, and vibration-damping connection between the motor and the 1 ½" propeller shaft. With exceptional flexibility, superior vibration damping, and the ability to tolerate a 2º deviation, the Bullflex 16 offers a reliable and high-performance solution. Notable features include impeccable shaft centering, even during reversing, a removable centering ring, and a built-in dynamic pressure bearing. Models 8, 12, and 16 feature both 4" and 5" connections, catering to diverse marine transmission systems. Additionally, the absence of a conical clamping hub streamlines perfect centering and facilitates easy assembly/disassembly, making it an ideal choice for marine propulsion systems.
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$ 1.933,02
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1-2 weeks delivery time The Vetus BULFL1613, part of the Bullflex series, exemplifies VETUS' commitment to superior marine propulsion solutions, catering specifically to propeller shafts with a diameter of 1 ¾". This flexible coupling stands out for its optimal vibration dampening capabilities, effectively addressing torsional vibrations associated with load changes and uneven engine running, particularly at low speeds. With a super-elastic rubber element featuring puncture protection, the Bullflex ensures a noiseless, backlash-free, and vibration-damping connection between the motor and the propeller shaft. Boasting advantages such as exceptional flexibility, optimum vibration damping, and protection against puncture, this coupling allows for a deviation of up to 2º, maintaining excellent shaft centering and facilitating high revolutions even with deviations. The Bullflex 16 remains centered during reversing, and its removable centering ring, coupled with a built-in dynamic pressure bearing, ensures easy assembly and disassembly. With different connection types for various transmissions, the Vetus BULFL1613 is a hallmark of driving comfort, flexibility, and reliability in marine applications.
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$ 1.933,02
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1-2 weeks delivery time The Vetus BULFL162, belonging to the Bullflex series, exemplifies VETUS' commitment to driving comfort and optimal vibration dampening for propeller shafts with a 2" diameter. Specially designed to address torsional vibrations resulting from load changes or uneven engine running, especially at low speeds, the Bullflex coupling features a super-elastic rubber element with puncture protection, ensuring a backlash-free, noiseless, and vibration-damping connection between the motor and the propeller shaft. Its notable advantages include exceptional flexibility, optimum vibration damping, and protection against puncture. With a permissible deviation of 2º, the coupling maintains excellent shaft centering, allowing for high revolutions even with deviations. During reversing, the shaft remains centered, and the removable centering ring, coupled with a built-in dynamic pressure bearing, facilitates easy assembly and disassembly. The Bullflex 16 offers various connection types for different transmissions, ensuring compatibility and making it a reliable choice for marine propulsion solutions.
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$ 1.933,02
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1-2 weeks delivery time The Vetus BULFL3213 Bullflex 32 Type Coupling is a cutting-edge solution designed for propeller shafts with a 1 ¾-inch diameter, providing optimal vibration damping for an enhanced boating experience. With its super-elastic rubber element, this coupling efficiently dampens torsional vibrations, ensuring a backlash-free and noiseless connection between the motor and propeller shaft. Boasting puncture protection, a 2º permissible deviation, and easy assembly/disassembly without a conical clamping hub, the Bullflex coupling offers high flexibility and centering even at high speeds and during reversing maneuvers. Check the specifications for compatibility with your marine system, and experience the next level of driving comfort with Vetus innovation.
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$ 2.950,89
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1-2 weeks delivery time The Vetus BULFL322 Bullflex 32 Type Coupling is a precision-engineered solution for propeller shafts with a 2-inch diameter, delivering optimal vibration dampening for an elevated boating experience. Crafted as VETUS' response to the demand for enhanced driving comfort, this coupling features a super-elastic rubber element that efficiently mitigates torsional vibrations, providing a backlash-free and noiseless connection between the motor and the propeller shaft. With additional puncture protection in both axial and radial directions, this coupling ensures optimal reliability. Enjoy the advantages of high flexibility, easy assembly/disassembly, and a centered shaft even during reversing maneuvers. Check the specifications for compatibility with your marine system and trust in Vetus innovation for a superior boating performance.
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$ 2.950,89
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1-2 weeks delivery time The Vetus BULFL0120 is a flexible coupling designed for 20mm shafts, providing optimal damping of vibrations to enhance driving comfort. Its Bullflex coupling efficiently dampens torsional vibrations, ensuring a backlash-free and vibration-damping connection between the motor and propeller shaft. With puncture protection and high flexibility, it offers smooth operation and even shaft centering during reversing. Available in various models with different connections, it's suitable for mounting on most transmissions, making it a versatile solution for marine propulsion systems.
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$ 628,53
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1-2 weeks delivery time The Vetus BULFL0125 is a highly versatile flexible coupling designed specifically for 25mm shafts, offering exceptional damping of vibrations to optimize driving comfort. Engineered with the Bullflex technology, it effectively absorbs torsional vibrations, ensuring a smooth and noiseless connection between the motor and propeller shaft. With features such as puncture protection, high flexibility, and easy assembly, this coupling guarantees reliable performance and precise shaft centering, making it an ideal choice for marine propulsion systems.
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$ 628,53
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1-2 weeks delivery time The Vetus BULFL0220 is an advanced flexible coupling designed for 20mm shafts, featuring the Bullflex technology for optimal damping of vibrations and increased driving comfort. With its precise engineering, this coupling efficiently absorbs torsional vibrations, ensuring a smooth and noiseless connection between the motor and propeller shaft. Equipped with puncture protection and exceptional flexibility, it offers reliable performance and precise shaft centering, even during reversing maneuvers. Suitable for various transmissions and available in different models, the BULFL0220 is a versatile and dependable choice for marine propulsion systems.
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$ 643,48
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1-2 weeks delivery time The Vetus BULFL0225 is an advanced flexible coupling designed for 25mm shafts, featuring the Bullflex technology for optimal damping of vibrations and increased driving comfort. Engineered with precision, this coupling efficiently absorbs torsional vibrations, ensuring a smooth and noiseless connection between the motor and propeller shaft. With built-in puncture protection and exceptional flexibility, it offers reliable performance and precise shaft centering, making it a versatile and dependable choice for marine propulsion systems.
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$ 643,48
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1-2 weeks delivery time The Vetus BULFL0425 is an advanced flexible coupling designed for 25mm shafts, featuring the innovative Bullflex technology for optimal vibration damping and increased driving comfort. Engineered with precision, this coupling ensures a backlash-free and vibration-damping connection between the motor and propeller shaft, with built-in puncture protection and exceptional flexibility. With various models and connection options available, it's a versatile and reliable choice for marine propulsion systems, offering precise shaft centering and efficient performance even during reversing maneuvers.
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$ 942,47
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1-2 weeks delivery time The Vetus BULFL0430 is an advanced flexible coupling designed for 30mm shafts, featuring Bullflex technology for optimal vibration damping and enhanced driving comfort. With exceptional flexibility, puncture protection, and precise shaft centering, it offers reliable performance and easy assembly, making it a versatile choice for marine propulsion systems.
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$ 942,47
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1-2 weeks delivery time The Vetus BULFL0830 is a high-performance flexible coupling specifically designed for 30mm shafts, featuring Bullflex technology for superior vibration damping and enhanced driving comfort. With its advanced design, this coupling efficiently absorbs torsional vibrations, ensuring a smooth and quiet operation while providing reliable shaft connection and precise centering, making it an ideal choice for marine propulsion systems requiring optimal performance and durability.
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$ 1.192,06
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1-2 weeks delivery time The Vetus BULFL0835 is a flexible coupling designed to provide optimal vibration damping, ensuring enhanced driving comfort. Its super-elastic rubber element effectively dampens torsional vibrations, offering a noiseless and vibration-free connection between the motor and the propeller shaft. With high flexibility, puncture protection, and easy assembly, it guarantees reliable performance and smooth operation, making it an ideal choice for marine applications.
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$ 1.192,06
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1-2 weeks delivery time The Vetus BULFL0840 flexible coupling is designed to provide optimal damping of vibrations, addressing the need for increased driving comfort in marine applications. Its super-elastic rubber element efficiently reduces torsional vibrations, ensuring a noiseless and vibration-damping connection between the motor and the propeller shaft. With high flexibility, puncture protection, and easy assembly, it offers reliable performance and durability, making it suitable for a variety of marine environments.
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$ 1.192,06
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1-2 weeks delivery time The Vetus BULFL1235, part of the Bullflex series, is a flexible coupling designed for 35mm shafts, offering optimal vibration damping for enhanced driving comfort. Its super-elastic rubber element efficiently reduces torsional vibrations, ensuring a noiseless and vibration-damping connection between the motor and the propeller shaft. With high flexibility and puncture protection, this coupling allows for smooth operation and easy assembly, making it a reliable choice for marine applications.
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$ 1.385,75
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1-2 weeks delivery time The Vetus BULFL1240 is a flexible coupling designed to provide optimal damping of vibrations, addressing the need for enhanced driving comfort in marine applications. This coupling efficiently reduces torsional vibrations, ensuring a noiseless and vibration-damping connection between the motor and the propeller shaft. Its high flexibility, puncture protection, and ability to withstand deviations make it a reliable choice for smooth operation and easy assembly in various marine setups.
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$ 1.385,75
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1-2 weeks delivery time The Vetus BULFL1245 Flexible Coupling, designed for 45mm shafts, offers exceptional vibration dampening for enhanced driving comfort. Engineered with a super-elastic rubber element, it efficiently minimizes torsional vibrations, ensuring a noiseless and stable connection between the motor and the propeller shaft. With puncture protection and high flexibility, this coupling guarantees optimal performance and reliability in marine applications.
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$ 1.385,75
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1-2 weeks delivery time Discover enhanced driving comfort with the Vetus BULFL1640 Bullflex Flexible Coupling designed for 40mm shafts. This Bullflex16 coupling is meticulously crafted to provide optimal vibration dampening, effectively handling torsional vibrations caused by load changes or uneven engine running. The super-elastic rubber element ensures a backlash-free and vibration-damping connection between the motor and the propeller shaft, offering noiseless operation. With features like puncture protection (axial and radial), a 2º deviation allowance, and a built-in dynamic pressure bearing, the Bullflex coupling guarantees an optimal and smooth connection. Benefit from its high flexibility, puncture protection, and easy (dis)assembly without a conical clamping hub, allowing for perfect centering and seamless operation even in reverse. Elevate your boating experience with the advanced features of the Vetus BULFL1640 Bullflex Flexible Coupling.
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$ 1.692,54
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1-2 weeks delivery time The Vetus BULFL1645, a flexible coupling from the BULLFLEX16 series designed for 45mm shafts, offers exceptional vibration dampening and driving comfort. Its super-elastic rubber element efficiently absorbs torsional vibrations, ensuring a noiseless and backlash-free connection between the motor and propeller shaft. With features like puncture protection and high flexibility, it's a reliable choice for marine applications requiring precise and smooth power transmission.
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$ 1.692,54
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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