PSS PRO Shaft Seal, 2" Shaft x 2-3/4" - 2-7/8" Stern Tube

Ensure a dry bilge and superior shaft integrity with the PSS PRO Shaft Seal, a top-tier mechanical face seal engineered for the most demanding marine environments. This advanced seal offers unmatched durability and resistance to harsh, corrosive, and high-pressure conditions, making it the premier choice for commercial vessels, powerboats, and sailboats worldwide. Proudly certified by ABS, RINA, and Bureau Veritas, the PSS PRO eliminates the constant maintenance and adjustments associated with traditional packing glands, providing a 100% watertight seal and preventing shaft wear. Upgrade your vessel's sealing system today for long-lasting reliability.

Key Features & Benefits:

• Robust Sealing Performance: Utilizes precision-machined 316L stainless steel rotors (optional Nitronic 50 upgrade for extreme corrosion resistance) and high-density, resin-impregnated carbon stators for a superior mechanical face seal.
• Enhanced Bellows Durability: Features reinforced silicone bellows, constructed with four-ply aramid/silicone and a fluorosilicone outer cover, providing exceptional strength, elasticity, and resistance to oil and fuel splashes.
• Wide Operating Temperature Range: Bellows maintain performance from -90°F to +425°F (-70°C to +220°C), while the carbon stator withstands over 500°F (+260°C), preventing melting even if the seal runs dry for short periods.
• Integrated Shaft Retention Collar (SRC): Includes a secondary double-split Shaft Retention Collar designed to help retain the propeller or rudder shaft in your vessel in the event of coupling failure, offering an additional layer of safety without marring the shaft.
• Corrosion-Resistant Hardware: Secured with 316 stainless steel hose clamps featuring rolled edges and non-perforated bands for maximum clamping power and corrosion protection.
• Vibration and Misalignment Compensation: The carbon stator is bored larger than the shaft diameter, allowing it to float and compensate for most drive-line misalignment and vibration issues.
• Low Maintenance Design: Eliminates the need for constant adjustment, greasing, and re-packing, providing a typical lifespan of 25,000 running hours and reducing overall downtime.

Compatibility:

• Designed for 2-inch shaft diameters.
• Fits stern tubes with an outside diameter from 2-3/4 inches to 2-7/8 inches.