A cutlass bearing, or cutless bearing, is a type of bearing used in the propulsion system of boats, specifically designed to support the propeller shaft. Made from durable rubber and lined with grooves or flutes, these bearings facilitate the lubrication process by allowing water to pass through, which reduces friction and wear as the shaft rotates
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1-2 weeks delivery time 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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$ 58.16
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1-2 weeks delivery time The Exalto brass rubber cutlass bearing is a water-lubricated shaft bearing designed for marine propulsion systems. Available for shaft diameters from 25 mm to 100 mm, with outer diameters from 40 mm to 125 mm and lengths from 100 mm to 400 mm, including short version (118 mm for 60 mm shaft). Features a bronze shell with rubber lining for wear resistance, reduced friction, and reliable operation.
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$ 97.01
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1-2 weeks delivery time The Michigan Wheel Aqualube brass cutlass bearing is a water-lubricated shaft bearing designed for marine propulsion systems. Available in metric sizes with shaft diameters from 22 mm to 110 mm, outer diameters from 35 mm to 135 mm, and lengths from 48 mm to 440 mm. Features a marine bronze shell with nitrile rubber lining for high abrasion resistance, vibration damping, and hydrodynamic water film lubrication.
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$ 116.87
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1-2 weeks delivery time The Vetus RULAGER brass rubber cutlass bearing is a water-lubricated shaft bearing designed for marine propulsion systems. Suitable for shaft diameters from 25 mm to 80 mm, with outer diameters from 1 1/2" to 4" and lengths from 100 mm to 320 mm. Features a bronze shell with polyurethane lining for reduced friction, wear resistance, and reliable shaft support.
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$ 50.65
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1-2 weeks delivery time The Exalto brass rubber cutlass bearing is a water-lubricated shaft bearing for marine propulsion systems. Available in mixed metric/imperial sizes with shaft diameters from 25 mm to 50 mm, outer diameters from 1 1/2" to 2 5/8", and lengths from 98 mm to 200 mm. Features a bronze shell with rubber lining for reduced friction, wear resistance, and smooth shaft operation.
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$ 94.26
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1-2 weeks delivery time The Michigan Wheel Aqualube brass cutlass bearing is a water-lubricated shaft bearing designed for marine propulsion systems. Available in mixed metric/imperial sizes with shaft diameters from 20 mm to 80 mm, outer diameters from 1 1/4" to 4", and lengths from 80 mm to 320 mm. Features a marine bronze shell with nitrile rubber lining for high abrasion resistance, vibration damping, and hydrodynamic water film lubrication.
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$ 105.71
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1-2 weeks delivery time The Vetus RULAG brass rubber cutlass bearing is a water-lubricated shaft bearing for marine propulsion systems. Suitable for shaft diameters from 1" to 4", with outer diameters from 1 1/2" to 5" and lengths from 4" to 16". Features a bronze shell with polyurethane lining for reduced friction, wear resistance, and reliable shaft support.
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$ 47.53
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1-2 weeks delivery time The Exalto brass rubber cutlass bearing is a water-lubricated shaft bearing for marine propulsion systems. Available in imperial sizes with shaft diameters from 3/4" to 3", outer diameters from 1 1/4" to 4", and lengths from 2" to 12". Features a bronze shell with rubber lining for wear resistance, reduced friction, and smooth shaft operation.
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$ 94.26
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1-2 weeks delivery time The Michigan Wheel Aqualube brass cutlass bearing is a water-lubricated shaft bearing for marine propulsion systems. Available in imperial sizes with shaft diameters from 3/4" to 4", outer diameters from 1 1/4" to 5", and lengths from 3" to 16". Features a marine bronze shell with nitrile rubber lining for high abrasion resistance, vibration damping, and hydrodynamic water film lubrication.
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$ 107.18
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1-2 weeks delivery time The Vetus RULAGER phenolic cutlass bearing is a water-lubricated shaft bearing for marine propulsion systems. Suitable for shaft diameters from 25 mm to 100 mm, with outer diameters from 40 mm to 125 mm and lengths from 100 mm to 400 mm. Features a non-metallic phenolic shell with polyurethane lining for corrosion resistance, reduced weight, and reliable shaft support.
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$ 81.93
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1-2 weeks delivery time The Exalto phenolic cutlass bearing is a water-lubricated shaft bearing for marine propulsion systems. Available in metric sizes with shaft diameters from 25 mm to 100 mm, outer diameters from 40 mm to 125 mm, and lengths from 48 mm to 400 mm. Features a non-metallic phenolic shell with rubber lining for corrosion resistance, reduced weight, and reliable shaft operation.
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$ 30.95
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1-2 weeks delivery time The Michigan Wheel Aqualube phenolic cutlass bearing is a water-lubricated shaft bearing for marine propulsion systems. Available in metric sizes with shaft diameters from 22 mm to 110 mm, outer diameters from 35 mm to 135 mm, and lengths from 88 mm to 440 mm. Features a non-metallic phenolic shell with nitrile rubber lining for corrosion resistance, abrasion durability, and hydrodynamic water lubrication.
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$ 73.89
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1-2 weeks delivery time The Vetus RULAGER phenolic cutlass bearing is a water-lubricated bearing for marine propulsion systems. Designed for shaft diameters from 30 mm to 80 mm with imperial outer diameters from 1 3/4" to 4" and lengths from 120 mm to 320 mm. Manufactured with a phenolic shell and polyurethane lining for corrosion resistance, low friction, and long service life.
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$ 103.20
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1-2 weeks delivery time The Exalto phenolic cutlass bearing is a water-lubricated bearing for marine propulsion systems. Designed for shaft diameters from 30 mm to 50 mm with imperial outer diameters from 1 3/4" to 2 5/8" and lengths from 120 mm to 200 mm. Manufactured with a phenolic shell and polyurethane lining for corrosion resistance, low friction, and long service life.
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$ 76.51
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1-2 weeks delivery time The Michigan Wheel Aqualube phenolic cutlass bearing is a water-lubricated bearing for marine propulsion systems. Designed for shaft diameters from 22 mm to 80 mm with mixed metric/imperial outer diameters and lengths from 88 mm to 320 mm (including 11"). Manufactured with a phenolic shell and nitrile rubber lining for abrasion resistance, low friction, and long service life.
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$ 70.47
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1-2 weeks delivery time The Vetus RULAG phenolic cutlass bearing is a water-lubricated shaft bearing for marine propulsion systems. Designed for shaft diameters from 1" to 4", with matching shaft tube sizes from 1 1/2" to 5" and lengths from 4" to 16". Features a phenolic outer shell and polyurethane lining for corrosion resistance, low friction, and reliable operation in marine environments.
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$ 88.80
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1-2 weeks delivery time The Exalto phenolic cutlass bearing is a water-lubricated shaft bearing for marine propulsion systems. Designed for shaft diameters from 3/4" to 4 1/2", with shaft tube sizes from 1 1/4" to 5 1/2" and lengths from 3" to 11". Manufactured from phenolic material with rubber lining for corrosion resistance, low friction, and reliable long-term operation in marine environments.
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$ 62.37
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1-2 weeks delivery time The Michigan Wheel Aqualube phenolic cutlass bearing is a water-lubricated shaft bearing for marine propulsion systems. Available in imperial sizes with shaft diameters from 3/4" to 4", outer diameters from 1 1/4" to 5", and lengths from 3" to 16". Features a non-metallic phenolic shell with nitrile rubber lining for corrosion resistance, abrasion durability, and hydrodynamic water lubrication.
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$ 101.83
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1-2 weeks delivery time Exalto Rubber Cutlass GRP Bearings are high-quality, reliable bearings designed for hermetic and durable operation of your systems. Perfect for ensuring smooth propeller rotation and optimal performance, these bearings are offered in a wide range of sizes, making it easy to select the right one for your needs.
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$ 82.22
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1-2 weeks delivery time The Super Marine elastomer cutlass bearing with flange is a water-lubricated shaft bearing for marine propulsion systems. Designed for shaft diameters from 22 mm to 40 mm with outer diameters from 29 mm to 54 mm and lengths from 75 mm to 140 mm. Manufactured from high-density injected elastomer and supplied with nylon fixing screws for secure installation.
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$ 36.05
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What are the primary functions of a cutlass water-lubricated bearings rubber bearing in a marine environment?
The primary functions of a cutlass bearing in a marine environment are to provide a wear surface and support for the propeller shaft while reducing friction and preventing damage. Typically made from durable materials such as naval brass or non-metallic shells, cutlass bearings like those from Duramax and Johnson are water-lubricated to ensure smooth operation. The water-lubricated mechanism activates a powerful pumping action that keeps the bearing cool and clean, significantly reducing frictional heat and wear, which is critical for maintaining the efficiency and longevity of the marine bearing system in severe conditions.
What are the primary advantages of using brass in cutless bearings (sleeve bearing) for marine applications?
The primary advantages of using brass in cutless bearings for marine applications include providing a durable and effective wear surface between prop shafts and rudder ports. A 3-inch brass sleeve bearing offers superior mechanical precision and durability. Brass sleeve bearings are engineered to activate a powerful pumping action supported by shaft rotation, which significantly decreases friction and wear, ensuring reliable performance in critical marine environments.
What are the benefits of using a flange in the installation of naval brass & non metallic bearings?
Using a flange in the installation of bearings provides a secure and stable mount, enhancing the overall performance and reliability of the bearing system. For instance, a 3-inch brass sleeve bearing with a flange offers a robust wear surface and facilitates the effective alignment of the shaft, reducing the risk of misalignment in critical environments. Additionally, flanged water-lubricated bearings, whether metallic or non-metallic, help maintain proper lubrication and protect the shaft from grit and abrasion, ensuring longevity and efficiency in marine applications.
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