Vetus RL23/4PH - Phenolic Cutlass Bearing for Shaft Ø 2 ¾'', 3 ¾'' Outside, Length 11''

Name: Vetus RL23/4PH - Phenolic Cutlass Bearing for Shaft Ø 2 ¾'', 3 ¾'' Outside, Length 11''
SKU: Vetus RL23/4PH
Price: 294.56003386749 USD
Availability: InStock

ID 976948

$ 294.56

1-2 weeks delivery time

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The Vetus RL23/4PH cutlass bearing is designed for a 2-3/4" propeller shaft and features a lightweight, corrosion-free phenolic resin shell with a 3-3/4" outside diameter and an 11" length. Its polyurethane-rubber lining incorporates longitudinal grooves that maintain continuous water lubrication and cooling, making this bearing especially suitable for aluminum stern tubes and applications requiring complete galvanic isolation.

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Vetus RL23/4PH Phenolic Cutlass Bearing for 2-3/4" Marine Propeller Shaft

The Vetus RL23/4PH cutlass bearing is engineered for marine propulsion systems where a non-metallic, corrosion-free bearing design is required. Intended for a 2-3/4" propeller shaft and compatible with stern tubes featuring a 3-3/4" outside diameter, this model utilizes a phenolic resin outer shell combined with a polyurethane-rubber lining. Longitudinal grooves integrated into the lining ensure continuous water flow, enabling effective lubrication and cooling under demanding operating conditions.

Manufacturer	Vetus
Model	RL23/4PH
Shaft Diameter	2-3/4"
Outside Diameter	3-3/4"
Length	11"
Shaft Diameter (mm)	69.85 mm
Length (mm)	279.4 mm
Shell Material	Phenolic resin
Rubber Lining	Polyurethane with longitudinal grooves
Shell Size (inch)	3 3/4

Key Features

Phenolic resin outer shell that cannot corrode and is lightweight.
Ideal for aluminum stern tubes and installations where galvanic corrosion must be avoided.
Polyurethane-rubber lining engineered for high wear resistance and long service life.
Longitudinal grooves ensuring stable water lubrication and continuous cooling.
Fully imperial (inch-based) dimensional specification for exact compatibility.
Suitable for use in both motorboats and sailing yachts.

Technical Function

Cutlass bearings support and align the propeller shaft, minimizing friction, vibration, and mechanical wear. The grooved polyurethane lining maintains a consistent water film along the rotating shaft, improving lubrication efficiency, thermal stability, and long-term reliability in harsh marine environments.

When to Choose Phenolic vs. Brass Bearings

Phenolic bearings: Best suited for aluminum stern tubes or installations requiring full galvanic isolation.
Brass bearings: Commonly used for general-purpose marine applications due to their durability and corrosion resistance, but not ideal where mixed metals may cause galvanic reactions.

Vetus rubber bearings for larger shaft diameters are available on special order.