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Description
PSS Shaft Seal 1-¼" Shaft 2" TubePSS Shaft Seal 1 1 4" Shaft 2" Tube Shaft Diameter: 1 1 4" Stern Tube Diameter (D): 2" 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
PSS Shaft Seal 1-1/4" Shaft 2" TubeShaft Diameter: 1-1/4"
Stern Tube Diameter (D): 2"
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 : 02-114-200
UPC : 839662007153
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4.6 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
a book that needed to be written!
Format: Kindle
Force of Nature is a wonderful book that needed to be written. A true -life adventure story that conveys the physical and emotional journey of a woman in her 50s who goes on a hike few dare try. The writing is incredibly sensory—full of everything she sees, feels, tastes and smells out in the wild. It’s a story of frustration and achievement, of triumphing over internal anxiousness and very real dangers and climbs. Beautiful writing, full of hope, great for book clubs and as a gift for nature-lovers. Hit the trail with Force of Nature!
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Reviewed in the United States on May 10, 2026
★★★★★ 4
Enjoyable, entertaining, engrossing
Format: Kindle
The Three Women, their JMT trail name, is a delightful read. You experience the beauty of nature and the wonders seen in the trail. You also experience the fear and anxiety that come with making such a trek. The bonds of friendship and support between the three and also all the other through hikers. An amazing read, the perfect balance of nature, friendship, compassion, struggle, and determination. Immerse yourself in this well written book.
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Reviewed in the United States on April 23, 2024
★★★★★ 5
An epic adventure, page after page!
Format: Paperback
Many women dream of making this hike (I once did) but few lace up their boots and get on the trail. And even a tiny fraction of those who DO realize their goal, could capture the experience like Joan Griffin. I read several chapters a night and always looked forward to getting back on the trail with her from my rocking chair.
The grandeur of the sights, the wonder of seeing the world well above 8,000 feet ~ for 27 days ~ reads like a personal diary. Every perspective, high and low, is captured: the practical issues of carrying on even with a twisted ankle on Day 1, then blisters, surviving sudden weather changes, confronting inner doubts, securing essential food and water, and losing the camera enrich the book in an authentic style.
In between all this, the reader remembers that it all took place with 40 pound backpacks on their backs!
It's a magical but real-life journey with the inevitable personality differences of the Three Women, as well as their uniquely personal reasons to hike. As the brave heroes arrive to the finish line, one is aware of the power of grace that accompanied them all along.
Yes, this experience changed the hikers but it also changes the reader. Being aware of those who live curiously and courageously provides a kind of encouragement for us to do the same, even after age 50.
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Reviewed in the United States on October 12, 2024
★★★★★ 5
Inspirational Read
Format: Paperback, Format: Paperback
Griffin, J. M. (2023). Force of nature: Three women tackle the John Muir Trail. Black Rose Writing.
Joan Griffin loves exploring and lives in the Northern California foothills of the Sierra Nevada.
Five legs, 27 days, 195.9 miles, this is a memoir of three 50+ women hiking the John Muir Trail located in the Sierra Nevada Mountain range. Each day receives its own chapter providing a vivid description of the trail, challenges, and beauty. Walking created an "unpredictable reality," that was "bigger in every conceivable way than [her] imagination could have conjured." As you read through the story, you are transported to the trail, so vivid her recollections and descriptions of their experiences. She wore a necklace with the words strength, courage, and spirit; a mantra that served her well along the journey. Griffin found: "I found my very soul had acclimated to the natural world, and I was completely in tune with the Earth and the sky and the water surrounding me." Such an inspiring memoir!
This would be a good read for 50+ women who need a good dose of inspiration, those who like travel memoirs, and those interested in long-haul walking.
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Reviewed in the United States on October 23, 2024
★★★★★ 5
Arm chair traveling on a cold winter retreat
Format: Paperback
This was the perfect book to get me back into reading! I’ve happily filled my evenings, transported to the John Muir Trail traveled by The Three Women. Your descriptions of such an immense beauty and reflections of your personal journey were at times like being on the trail with you all!
An inspirational read!
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Reviewed in the United States on December 29, 2025