SKU: 92188586590

PSS PRO Shaft Seal 2-1/2" Shaft 3-1/2" Tube

Sale price$396.72 Regular price$440.80
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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27

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Description

PSS PRO Shaft Seal 2-1/2" Shaft 3-1/2" TubePSS Pro Shaft Seal 2 1 2" Shaft & 3 1 2" Tube The PSS PRO Shaft Seal is a mechanical face seal utilizing our proven stainless steel and carbon sealing components but adds reinforced silicone bellows, a secondary shaft retention collar, 316 Stainless Steel hose clamps (rolled edges and non perforated), and an optional Nitronic 50 rotor upgrade (for highly corrosive environments). Designed specifically for applications that will require increased

PSS Pro Shaft Seal - 2 1/2" Shaft & 3 1/2" Tube

The PSS PRO Shaft Seal is a mechanical face seal utilizing our proven stainless steel and carbon sealing components but adds reinforced silicone bellows, a secondary shaft retention collar, 316 Stainless Steel hose clamps (rolled edges and non-perforated), and an optional Nitronic 50 rotor upgrade (for highly corrosive environments). Designed specifically for applications that will require increased durability and resistance to harsh, corrosive, high pressure, and otherwise demanding environments. The PSS PRO Shaft Seal is a specialized mechanical seal suitable for various applications, with unmatched performance.

As with PSS Type A & B Seals, The PRO Shaft Seal is a mechanical face seal. The sealing surface is created between the flat surfaces of the rotating stainless-steel rotor and the stationary carbon flange. The stationary carbon flange is attached to a heavy-duty silicone bellows attached to the vessel’s stern tube (shaft log), with 316SS hose clamps. The stainless-steel rotor is fitted on the shaft in front of the carbon flange and is used to compress the bellows, the rotor is then secured to the shaft with set screws, and the shaft retention collar is installed. This compression (pre-load) maintains constant contact between the two mating faces of the stainless-steel rotor and carbon flange, allowing the PSS to compensate for the variable axial movement due to propeller thrust. In addition, the carbon flange is over-bored to the shaft diameter allowing it to "float" around the shaft and thus compensate for most misalignment and vibration from the drive-line. The stainless-steel rotor is sealed to the shaft by two O-rings recessed into the rotor's bore. These O-rings rotate with the shaft and the stainless-steel rotor and therefore do not experience wear during operation.

Specifications

  • Temperature Limits: -13°F to 425°F (-25°C to 220°C)
  • Pressure Limits: 40 PSI (2.75 BAR)
  • Shaft RPM Limits: 10,000 RPM
  • Carbon Graphite: Lapped to 4 HLB (0.000044" tolerance)
  • 316SS / Nitronic 50: Faced to 9 Ra
  • Bellow Material: Molded formed silicone / fabric

Product Dimensions

  • Shaft Dia. (A) 2-1/2"
  • Stern Tube Dia. (B) 3-1/2" to 3-5/8"
  • Uncompressed Length (C) 9.800" 
  • Approx. Compressed Length 8.800" 
  • Rotor Diameter (D) 4.2"
  • Stern Cuff Length (E) 1.3"
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 92188586590

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Thu Vien
Battle Creek, US
★★★★★ 5
Must have for a hot summer!
My mom saw my aunt using it and was impressed, so she bought it for herself and my sister-in-law. They both love how gentle it feels on the skin and that it’s organic and effective.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 12, 2025
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ilovebooks
Lowell, US
★★★★★ 3
Too smelly
I love the idea of a clear spray sunscreen but my daughter says it stings her eyes and the smell gives me an instant headache. I really wanna like this but it’s a no go for me
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Reviewed in the United States on August 20, 2025
K
Verified Purchase
kai
Charlottesville, US
★★★★★ 5
Great for sensitive skin
This was great to take on vacation. I went to Cancun and used this on my face. Never got burned. I have super sensitive skin and this didn’t cause any reactions. I’m also sensitive to smells and I don’t notice anything with this product. Will purchase again.
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Reviewed in the United States on August 6, 2025
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Shaunda Cress
Omaha, US
★★★★★ 1
Buyer beware!
Awful! I sprayed my face with it and immediately felt my skin burning. I opened the bottle and noticed all that was in it was a yellowish fluid that smelled like straight rubbing alcohol. My face still has marks on it days later from whatever the substance was. I have used this brand before, and never experienced anything like this. The product was either years past expiration, or liquid was replaced with some kind of chemical.
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Reviewed in the United States on April 22, 2025
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Verified Purchase
Kari M Rollins
Lexington, US
★★★★★ 5
The perfect sunscreen face-mist
Light, non-greasy sunscreen spray to help keep your face protected throughout an active day in the sun.
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Reviewed in the United States on August 20, 2025

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