Bestselling Pss 55mm Shaft / 3 3/4in Tub With Free Shipping [e3iNohPk]

55mm Shaft / 3 3/4in Tub PSS Shaft Seal

The PSS 55mm shaft / 3 3/4in tub shaft seal is a top-selling marine mechanical seal designed to provide unparalleled performance and reliability. This product is recognized as the number one selling marine mechanical seal worldwide and is installed as standard equipment by many reputable boat builders and yards. Its innovative design offers numerous advantages over traditional packing type glands, making it a favorite choice for retrofitting (aftermarket) applications as well.

Product Specifications and Technical Details

The PSS Shaft Seal is engineered for shaft sizes ranging from 3/4" (20mm) to 6" (155mm), making it versatile for various boat applications. It features a mechanical face seal created between the flat surfaces of the rotating stainless steel rotor and the stationary carbon flange. The carbon flange is attached to the vessel's stern tube with hose clamps, ensuring a secure fit. The stainless steel rotor is designed to compress the bellows before the collar is secured to the shaft with set-screws, maintaining a consistent pre-load. This pre-load allows the PSS to compensate for thrust from the propeller, ensuring optimal performance and reducing wear on the propeller shaft. Additionally, the carbon flange is bored larger than the shaft diameter, allowing it to "float" around the shaft and compensate for misalignment and vibration issues.

Practical Uses and Benefits

The PSS 55mm shaft / 3 3/4in tub shaft seal offers a range of practical uses and benefits. By eliminating the need for constant maintenance and adjustment, this seal saves both time and money for boat owners. Its 100% watertight design helps prevent water from entering the bilge, reducing the risk of damage to the boat's structure and electrical systems. The seal also minimizes wear on the propeller shaft, extending the life of the component and reducing the frequency of repairs. Ideal for boat builders, yacht owners, and marine professionals, the PSS Shaft Seal is a reliable and efficient solution for ensuring the smooth operation of your vessel.