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Description
PSS Shaft Seal 1-¼" Shaft 1-¾" TubePSS Shaft Seal 1 1 4" Shaft 1 3 4" Tube Shaft Diameter: 1 1 4" Stern Tube Diameter (D): 1 3 4" to 1 7 8" Total Length (A): 7. 38" Total Length (compressed) (Compressed A): 6. 38" Rotor Diameter (B): 2. 875" Carbon Cuff Diameter (C): 2. 5" Stern Cuff Length (E): 1. 5" The PSS Shaft Seal is the number one selling marine mechanical seal worldwide and is installed as standard equipment by many of the worlds most reputable boat builders yards. The PSS
PSS Shaft Seal 1-1/4" Shaft 1-3/4" TubeShaft Diameter: 1-1/4"
Stern Tube Diameter (D): 1-3/4" to 1-7/8"
Total Length (A): 7.38"
Total Length (compressed) (Compressed A): 6.38"
Rotor Diameter (B): 2.875"
Carbon Cuff Diameter (C): 2.5"
Stern Cuff Length (E): 1.5"
The PSS Shaft Seal is the number one selling marine mechanical seal worldwide and is installed as standard equipment by many of the worlds most reputable boat builders / yards. The PSS Shaft Seal is also recognized as the premiere retrofit (aftermarket) seal on the world market. Certified by Bureau Veritas, ABS & Rina: Boat builders / yards recognize the advantages and value of installing the PSS as it eliminates the maintenance, constant adjustment & cost associated with traditional packing type glands. Aside from these benefits, the PSS Shaft Seal helps to eliminate water in the bilge (100% water tight) & wear to the propeller shaft. The PSS Shaft Seal can be easily retrofitted and is available for shafts ranging from 3/4" (20mm) to 6" (150mm).
The PSS Shaft Seal is a mechanical face seal that is created between the flat surfaces of the rotating stainless steel rotor and the stationary carbon flange. The stationary carbon flange is attached to the vessels stern tube with hose clamps and the carbon flange is attached to the front side of the bellows with hose clamps. The stainless steel rotor is fit on the shaft in front of the carbon flange. The stainless steel rotor is used to compress the bellows before the collar is secured to the shaft with set-screws. This compression (pre-load) maintains contact between the faces and allows the PSS to compensate for the thrust from the propeller. The carbon flange is bored larger than the shaft diameter allowing it to "float" around the shaft and thus compensate for most misalignment and vibration problems. The stainless steel collar is sealed to the shaft by two o-rings that are recessed into the bore of the collar. These o-rings rotate with the shaft and stainless steel rotor and do not experience wear during operation.
**As with any rubber hose below waterline, the PSS bellows must be inspected on a regular basis for any sign of wear, aging or chemical deterioration. PYI suggests as preventative maintenance that the PSS bellow be replaced in six year intervals. During bellows replacement it is recommended the o-rings & set screws in the stainless steel rotor also be replaced."
Bellows may need to be more frequently inspected in an environment where non-sealed batteries emit sulfuric acid. Sulfuric acid vapor will accelerate rubber deterioration, as will an ozonater.
The Maintenance Kit includes the items you need to properly maintain your PSS Shaft Seal. Included in the kit is one (1) PSS bellow, two (2) O-rings, five (5) set screws, four (4) new hose clamps and an allen key.
Manufacturer : PSS Shaft Seal
Manufacturer Part No : 02-114-134
UPC : 839662007146
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4.4 ★★★★★
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Product Reviews
★★★★★ 5
Great book
Format: Kindle
Great book . I really appreciate the questions at the end of each chapter that you must solve yourself it really makes this book a cut above the other real estate books I’ve read . Thank you
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Reviewed in the United States on June 19, 2025
★★★★★ 5
Excellent Book
Format: Paperback
This book goes into such details of needed formulas and how to use them. Book has lots of examples of real world use and how to use the formulas. Well worth the purchase price.
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Reviewed in the United States on December 27, 2024
★★★★★ 5
In depth and easy to understand
Format: Paperback
I am an active investor and have read quite a few books on a variety of investing and real estate topics. Accordingly I mostly skim new books and try to strengthen concepts I am already mostly comfortable with. I previously had difficulty grasping irr, npv, and dcf, and this book explained these thoroughly, simply, and with examples that will allow me to use these tools to make better investing decisions. I think this book will offer great value to those just getting started and those at a more advanced level alike.
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Reviewed in the United States on February 5, 2023
★★★★★ 4
Leave No Stone Unturned
Format: Paperback
There was a bunch to digest in this book. There are a lot of formulas to assist on your investing journey. This book serves as a good tool to assist in analyzing your investments.
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Reviewed in the United States on January 23, 2023
★★★★★ 5
very good read for real estate
Format: Paperback
starting in real estate good read.
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Reviewed in the United States on May 18, 2025
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