PSS PRO Shaft Seal 1-1/4" Shaft & 2-1/2" Tube
SKU: 93716350447

PSS PRO Shaft Seal 1-1/4" Shaft & 2-1/2" Tube

Sale price$189.72 Regular price$210.80
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Ships within 48 hours · Estimated delivery Jul 8 - Jul 13

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Description

PSS PRO Shaft Seal 1-1/4" Shaft & 2-1/2" TubePRO Shaft Seal 1 1 4" Shaft & 2 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

PRO Shaft Seal 1-1/4" Shaft & 2-1/2" 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) 1-1/4"
  • Stern Tube Dia. (B) 2-1/2" to 2-5/8"
  • Uncompressed Length (C) 8.805" 
  • Approx. Compressed Length 8.055" 
  • Rotor Diameter (D) 2.875"
  • Stern Cuff Length (E) 1.3"

Manufacturer : PSS Shaft Seal
Manufacturer Part No : 03-114-212
UPC : 015568069703
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: 93716350447

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Bryon A.
Omaha, US
★★★★★ 4
Privacy panels
Size: 4 Panel, Color: Black
They're well made,fabric is fairly thick but the wording had me thinking i was buying 4 sets of 4 panels instead of just 4 panels. My fault i guess.....
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Reviewed in the United States on August 18, 2025
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Kindle Customer
Houston, US
★★★★★ 5
Looks great
Size: 1 Panel, Color: Black
Easy set up works great.
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Reviewed in the United States on March 6, 2026
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Miriam T.
Bozeman, US
★★★★★ 5
Recomendado
Color: Grey
Exelente! Fácil de instalar y muy efectivo para el propósito para el cual lo compré. Recomendado!
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Reviewed in the United States on May 30, 2026
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Christmas Gift
Phoenix, US
★★★★★ 3
Wobbly
Color: Grey
Wobbly and the metal bars keep coming off. Be aware. I’ve tripped over them. Be careful.
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Reviewed in the United States on April 21, 2026
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Amazon Customer
West Palm Beach, US
★★★★★ 5
Very practical for the price.
Color: Black
Very practical for the price.
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Reviewed in the United States on May 25, 2026

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