PSS PRO Shaft Seal 1-3/4" Shaft  3-1/2" Tube [03-134-312]

PSS PRO Shaft Seal 1-3/4" Shaft 3-1/2" Tube [03-134-312]

Regular price $693.00 Sale price $554.40 Save $138.60
/
Shipping calculated at checkout.

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"

Why choose us?

Thousands of IN stock items

At Automotive Elegance, we don't just focus on car accessories. We offer a full catalog of marine and outdoor accessories and parts. With knowledgeable staff that can help you with the right parts needed for your Auto or Marine needs. Feel free to send us a message or email if you need some assistance.

Testimonials

★★★★★

I brought in my 2008 Toytoa Tundra for a new radio head unit. Sean was extremely professional and helped me pick out a Kenwood unit with built in GPS. He even installed a front and rear camera set up which makes parking my truck so much easier. The best part is how dependable this new head unit is. Several months later, and I have no issues with it. I'll definitely be back in the future for more upgrades.

Mark Calaguio
Toms River, NJ
★★★★★

Great shop in town. We work together all the time. Nothing but good things to say about Sean and his team.

Shore Polishing
Bayville, NJ

Mom and Pop Shops

Shop Local

All products

Improved

New website and shopping experience

contact us

Recently viewed