PRO Shaft Seal 1-1/4″ Shaft & 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″ to 2-1/8″
- Uncompressed Length (C) 8.805″
- Approx. Compressed Length 8.055″
- Rotor Diameter (D) 2.875″
- Stern Cuff Length (E) 1.3″
Fast Shipping and Professional Packing
We can offer a variety of shipping options because of our long-term partnership with UPS FedEx DHL. Our warehouse personnel are expertly trained and will wrap your products according to our precise and exact specifications. Your goods are thoroughly checked and secured properly prior to shipping. Every day, we deliver to thousands of customers in multiple countries. This shows our commitment to become the biggest online retailer on the planet. Both Europe as well as the USA have warehouses and distribution centres.
Note: Orders that contain more than one item will be assigned a different processing time for each item.
We will carefully examine all items before sending. Most orders are shipped within 48 hours. The time to deliver varies from 3-7 days.
Returns
Due to the multiple parties involved, including the factory and the warehouse, we cannot completely manage our stock. The stock levels may fluctuate at any given time. Be aware that it's possible for your order to be out of stock after you've placed your order.
Our policy lasts for a period of 30 days. Unfortunately, if 30 days have passed since you purchased your item, we cannot provide a refund or exchange.
To be eligible for a refund, your product must be unopened and in the same state as when you received it. It must also be returned in the original packaging.
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