SKU: 85605265425

PSS PRO Shaft Seal 1-3/4" Shaft & 3-1/2" Tube

Sale price$280.80 Regular price$312.00
Save 10%

Pay in installments of $78.00 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

PSS PRO Shaft Seal 1-3/4" Shaft & 3-1/2" TubePRO Shaft Seal 1 3 4" 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

PRO Shaft Seal 1-3/4" 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) 1-3/4"
  • Stern Tube Dia. (B) 3-1/2" to 3-5/8"
  • Uncompressed Length (C) 9.268" 
  • Approx. Compressed Length 8.268" 
  • Rotor Diameter (D) 3.75"
  • Stern Cuff Length (E) 1.3"

Manufacturer : PSS Shaft Seal
Manufacturer Part No : 03-134-312
UPC : 015568069932
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: 85605265425

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 22 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Shopper
Cuba, US
★★★★★ 5
Versatility simple top
Size: X-Large, Color: White
Comfortable and well made top. Simple but versatile dress it up or casual, this top is a basic much needed wardrobe addition.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026
H
Verified Purchase
Hart Smith
Whiting, US
★★★★★ 5
Great looking Cotton tank
Size: Small, Color: White
Love this tshirt. Have worn but not washed yet. So will add when I know if it shrinks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026
T
Verified Purchase
thunderkitten
West Palm Beach, US
★★★★★ 1
I wouldn’t call it a ribbed shirt if it’s almost see through
Size: Medium, Color: Black
Cheap thin looking fabric returned it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2026
M
Verified Purchase
MH
Phoenix, US
★★★★★ 3
Runs large with gaping arm holes.
Size: Large, Color: White
This runs extra large and the arm holes are gaping. You can see your undergarments through the arm holes. I am hoping that the shirt shrinks in the wash.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 17, 2026
A
Verified Purchase
Amazon Customer
Carnegie, US
★★★★★ 5
Favorite Dress!
Size: X-Large, Color: Black
This dress is so comfortable & versatile!! PLEASE keep making this dress just the way it is! :) It's nice and loose and flowy, making it so comfortable yet stylish. Great for around the house & also cute to pair with jewelry and a jacket to go out! I have ordered this dress in many colors! The best dress!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 10, 2026

recommand products