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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.
1-2 weeks delivery time Price incl. 19% VAT The Hollex 1V propeller shaft seal is made of bronze.
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€ 208,56
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1-2 weeks delivery time Price incl. 19% VAT The Hollex 2V propeller shaft seal is made of bronze.
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€ 353,28
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1-2 weeks delivery time Price incl. 19% VAT Discover the reliability and performance of Goodrich bearing from Exalto with our Rubber Cutlass Bronze Bearings. These bronze bushings are essential for ensuring the proper and high-quality operation of your propellers, providing a dependable solution for your marine needs.
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€ 350,27
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1-2 weeks delivery time Price incl. 19% VAT Flexible coupling, has a special conical retainer, which guarantees one hundred percent concentric fit. This saves installation time.
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€ 350,27
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1-2 weeks delivery time Price incl. 19% VAT The main feature of these couplings is the possibility of breaking the shaft line by 2 °. These couplings dampen axial and radial vibration, providing a flexible connection between the shaft and the gearbox.
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€ 430,57
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1-2 weeks delivery time Price incl. 19% VAT The Vetus Bullflex clutch is specially designed for optimal vibration suppression. Vibration due to torsional vibrations due to uneven engine operation, especially at low speeds, is effectively eliminated due to the flexible rubber insert. This prestressed rubber element ensures low noise, no play and no vibration when transmitting torque from the engine to the propeller. The Bullflex clutch reliably protects the gearbox from axial and radial impact, ensuring safe transmission of force under any conditions.
Another strength of the Bullflex clutch is the immaculate installation of the propeller shaft line.
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€ 470,70
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1-2 weeks delivery time Price incl. 19% VAT Constant-Velocity Joint (hinges of equal angular speeds) with built-in thrust bearing. Such a product as Vetus Drive (VDR) imposes less stringent requirements on the permissible vibration of the engine, thanks to the combination of such structural elements as a hinge of equal angular speeds and a thrust bearing.
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1-2 weeks delivery time Price incl. 19% VAT The CV joint in the Python-Drive kit P30-R for shafts with a diameter of 19 to 30 mm, a maximum torque of 30 Kgm (294 Nm), a maximum stop of 4.3 kN. For 50 hp (3000 RPM) engines with a 2.5: 1 gearbox. Coupling diameter 100 mm, length 145, 165 or 195 mm (choice)
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1-2 weeks delivery time Price incl. 19% VAT The CV joint in the Python-Drive kit P60-B for shafts with a diameter of 1 1/4 "to 40 mm, a maximum torque of 60 Kgm (588 Nm), a maximum stop of 5.7 kN. For 70 hp (2600 RPM) engines with a 3:1 gearbox. Coupling diameter 100 mm, length 145, 165 or 195 mm (choice)
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1-2 weeks delivery time Price incl. 19% VAT The CV joint in the Python-Drive kit P60-K for shafts with a diameter of 30 to 40 mm, a maximum torque of 60 Kgm (588 Nm), a maximum stop of 5.7 kN. For 70 hp (2600 RPM) engines with a 3:1 gearbox. Coupling diameter 100 mm, length 145, 165 or 195 mm (choice)
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1-2 weeks delivery time Price incl. 19% VAT The CV joint in the Python-Drive kit P80-M for shafts with a diameter of 30 to 45 mm, a maximum torque of 80 Kgm (785 Nm), a maximum stop of 8 kN. For 105 hp (3000 RPM) engines with a 3:1 gearbox. Coupling diameter 100 mm, coupling length 145, 165 or 195 mm (choice)
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1-2 weeks delivery time Price incl. 19% VAT The CV joint in the Python-Drive kit P80-S for shafts with a diameter of 30 to 45 mm, a maximum torque of 80 Kgm (785 Nm), a maximum stop of 12 kN. For 135 hp (2500 RPM) engines with a 2:1 gearbox. Coupling diameter 100 mm, coupling length 145, 165 or 195 mm (choice)
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1-2 weeks delivery time Price incl. 19% VAT The CV joint in the Python-Drive kit P110-S for shafts with a diameter of 35 to 45 mm, a maximum torque of 110 Kgm (1080 Nm), a maximum stop of 12 kN. For 135 hp (2800 RPM) engines with a 3:1 gearbox. Coupling diameter 108 mm, coupling length 180 or 225 mm (choice)
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1-2 weeks delivery time Price incl. 19% VAT The CV joint in the Python-Drive kit P110-T for shafts with a diameter of 35 to 50 mm, a maximum torque of 110 Kgm (1080 Nm), a maximum stop of 18 kN. For 175 hp (2400 RPM) engines with a 2:1 gearbox. Coupling diameter 108 mm, coupling length 180 or 225 mm (choice)
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1-2 weeks delivery time Price incl. 19% VAT The CV joint in the Python-Drive kit P140-T for shafts with a diameter of 40 to 55 mm, a maximum torque of 140 Kgm (1370 Nm), a maximum stop of 18 kN. For 160 hp (2500 RPM) engines with a 3:1 gearbox. Coupling diameter 128 mm, coupling length 180 or 225 mm (choice)
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1-2 weeks delivery time Price incl. 19% VAT The CV joint in the Python-Drive kit P200-T for shafts with a diameter of 40 to 60 mm, a maximum torque of 200 Kgm (1960 Nm), a maximum stop of 18 kN. For 250 hp (2400 RPM) engines with a 2.5: 1 gearbox. Coupling diameter 148 mm, coupling length 225 mm (choice)
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Our managers will contact you and clarify the terms of the order
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1-2 weeks delivery time Price incl. 19% VAT The CV joint in the Python-Drive kit P200-Q for shafts with a diameter of 45 to 60 mm, a maximum torque of 200 Kgm (1960 Nm), a maximum stop of 22 kN. For 200 hp (2200 RPM) engines with a 3:1 gearbox. Coupling diameter 148 mm, coupling length 225 mm (choice)
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Our managers will contact you and clarify the terms of the order
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1-2 weeks delivery time Price incl. 19% VAT The CV joint in the Python-Drive kit P200-W for shafts with a diameter of 50 to 60 mm, a maximum torque of 200 Kgm (1960 Nm), a maximum stop of 30 kN. For 200 hp (2200 RPM) engines with a 3:1 gearbox. Coupling diameter 148 mm, coupling length 225 mm (choice)
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Our managers will contact you and clarify the terms of the order
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1-2 weeks delivery time Price incl. 19% VAT The CV joint in the Python-Drive kit P501-Q for shafts with a diameter of 55 to 60 mm, a maximum torque of 500 Kgm (4900 Nm), a maximum stop of 22 kN. For 430 hp (2300 RPM) engines with a 2.5: 1 gearbox. Coupling diameter 198.1 mm, coupling length 221 mm
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Our managers will contact you and clarify the terms of the order
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1-2 weeks delivery time Price incl. 19% VAT The CV joint in the Python-Drive kit P501-W for shafts with a diameter of 60 to 80 mm, a maximum torque of 500 Kgm (4900 Nm), a maximum stop of 30 kN. For engines with a capacity of 620 hp (2400 RPM) with a 2.5: 1 gearbox. Coupling diameter 198.1 mm, coupling length 221 or 260 mm (choice)
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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.
What are the common types of bearings used with marine propeller 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.
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.