Duramax Marine 870382100 Johnson Cutless Naval Brass Sleeve Bearing BOSS 1.5" x 2" x 6"

The Duramax Marine 870382100 BOSS is a premium Johnson Cutless water-lubricated propeller shaft bearing designed for marine applications. This naval brass sleeve bearing features a proprietary nitrile rubber lining that is permanently bonded to a precision-machined brass shell, providing reliable performance in both recreational and commercial vessels.

Key Features:

• Shaft Diameter: 1-1/2 inches (38.10mm)
• Outside Diameter: 2 inches (50.80mm)
• Bearing Length: 6 inches (152.40mm)
• Wall Thickness: 1/8 inch (3.18mm)
• Naval brass shell machined and polished for easy fitting
• Oil and chemical resistant nitrile rubber securely bonded to shell
• Precision-fitted diameters with correct clearance for efficient water lubrication
• Made in the USA by Duramax Marine, the world's largest supplier of marine bearings

Applications:

The BOSS bearing adapts equally well to strut and stern tube mounts and is frequently used as rudder stock and pintle bushings. This bearing is installed by light press fitting and locked in place with cone-pointed set screws. Johnson Cutless bearings meet military specification MIL-DTL-17901C Class II requirements and have full type approval from The American Bureau of Shipping, making them the trusted choice of marine professionals worldwide.

The grooved rubber lining allows water to flow through the bearing for lubrication and cooling, while the elastic properties of the rubber create a hydrodynamic film that separates the bearing surface from the shaft, reducing friction and wear. This design also provides natural grit rejection, making it ideal for abrasive marine environments.