Duramax Marine DINE Johnson Naval Brass Cutless Bearing 3-1/2" x 4-1/4" x 14"

The Duramax Marine DINE is a premium water-lubricated Johnson Cutless naval brass sleeve bearing designed for heavy-duty marine propulsion systems. This bearing features a seamless naval brass shell with an oil-resistant nitrile rubber polymer lining that is permanently bonded to provide reliable, maintenance-free performance for propeller shafts in commercial and recreational vessels.

Key Features:

• 3-1/2" shaft diameter, 4-1/4" outside diameter, 14" length
• Naval brass construction with chemically resistant nitrile rubber lining
• Water-lubricated design eliminates need for oil and contamination seals
• Precision machined for optimal concentricity and proper shaft clearance
• Meets military specification MIL-DTL-17901C Class II requirements
• Made in USA by Duramax Marine, the world's largest marine bearing supplier

Versatile Applications:

• Strut mounts and stern tube installations
• Rudder stock and pintle bushings
• Intermediate shaft bearing applications

The grooved rubber lining creates hydrodynamic grit rejection by flushing abrasive particles through alternating grooves, protecting the shaft from damage while reducing friction and heat. The elastic properties of the rubber polymer create a natural pocket allowing water to form a complete lubricating film, reducing the coefficient of friction to under 0.001 for minimal system wear.

Johnson Cutless bearings are trusted by more marine professionals worldwide than any other water-lubricated bearing brand. Each bearing undergoes rigorous quality inspection and is backed by decades of proven performance in demanding marine environments.