Up for sale is a genuine Duramax Marine Johnson Cutless "FANNY" water-lubricated sleeve bearing. Specifically engineered as an anti-electrolytic solution for rugged marine environments, this premium non-metallic bearing features an outer shell constructed from a dense structure of engineered, reinforced thermoset plastic. It is internally lined with a permanently vulcanized, proprietary nitrile rubber compound that is completely resistant to oils, greases, and harsh dockside chemicals. By eliminating metallic components, the FANNY bearing provides the perfect solution for vessel struts, rudder stocks, pintle bushings, and stern tubes where traditional brass bearings would accelerate corrosion or destructive electrolysis.

Key Features

Anti-Electrolytic Design: Engineered non-metallic plastic shell isolates electrical currents, entirely eliminating corrosion and galvanic bonding issues in underwater hardware.
Hydrodynamic Water-Wedge: Features full-length interior radius grooves that trap water to create a frictionless hydrodynamic layer, protecting both the bearing and the shaft.
Grit Rejection Lining: Resilient internal rubber compound deflects sand, silt, and debris away from the running journal and washes it harmlessly out of the assembly channels.
Genuine Made in USA: Factory-original Duramax Marine equipment built to strict commercial maritime standards for maximum durability and service life.

Technical Specifications

Brand: Johnson Cutless by Duramax Marine LLC
Model Code: FANNY
Part Number / MPN: 112-238-600
Production Serial Number: 171431-0014
Shell Material: Engineered Reinforced Thermoset Plastic (Non-Metallic)
Liner Material: Specially Compounded Oil-Resistant Nitrile Rubber
Shaft Size / Inner Diameter (I.D.): 1-1/2 Inches (1.500")
Outside Diameter (O.D.): 2-3/8 Inches (2.375")
Overall Bearing Length: 6 Inches (6.000")

Installation & Care Warnings

Press Fit Guidelines: These non-metallic sleeve bearings are standardly installed using a light press-fit into the strut housing or stern tube and mechanically locked down via standard cone-pointed set screws.
Chilling Precautions: If your specific installation geometry requires shrink-fitting, the bearing housing must be chilled using regular ice or a controlled freezer environment down to a gradual temperature threshold (do not go below minus 20°F / -28°C). Do NOT use dry ice, and avoid any heavy pounding or shocking while frozen, as doing so can permanently compromise the internal rubber-to-plastic vulcanized bond.

Please verify your boat's shaft diameter and strut barrel dimensions to confirm an exact 1-1/2" x 2-3/8" x 6" match before purchasing. Feel free to send a message if you have any questions!