PSS (Packless Sealing System) Shaft Seals
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P.S.S. Shaft Seals have logged up to 40,000 hours of hassle-free operation!
High-density carbon and high-density stainless steel components create a dripless mechanical seal that provides years of use. The stationary carbon flange attaches to the stern tube with a nitrile bellows and is held in contact with the stainless-steel flange that rotates along with the propeller shaft. The force of the compressed bellows presses the flanges together, which creates a 100% watertight seal that is virtually maintenance free. This system is self-adjusting and it eliminates the need for periodic adjustment required by a conventional stuffing box.
The seal can be used with a pitted or slightly misaligned shaft because it’s designed to compensate for small flaws. Additionally, it won’t melt or have a catastrophic failure.
P.S.S. makes its seals with space-age carbon composites, heavy-duty nitrile O-rings and bellows and 316 stainless steel rotor and fasteners. The durable seals are designed and manufactured to resist extreme temperatures, saltwater, UV radiation, petroleum-based products and corrosion. Typical break-in after proper installation is one hour. Propeller shaft and stern tube diameter are necessary when ordering. Sizes not listed are available by special order.
Key Features:
- High-density carbon flange
- High-density stainless-steel flange
- Nitrile bellows and O-rings
- 316 stainless-steel rotor and fasteners
- Three-year limited warranty
How to order the seal you need
- Select your system according to the shaft diameter, stern tube diameter and the required amout of bellows compression. For help, see the P.S.S. Shaft Seal Installation Manual. We offer a range of P.S.S. Shaft Seals to cover most applications, but if you do not see what you are looking for here, others are available by Special Order
- You can also call 1-800-BOATING for help with selection.
Our selection of P.S.S. Shaft Seals includes the following:
| Shaft Diameter | Stern Tube Diameter | Compressed Length | Model | P.Y.I. Number |
|---|---|---|---|---|
| 30mm | 2" | 6 1/4" | 5336730 | 02-30M-200 |
| 3/4" | 1 1/2" | 6 1/4" | 5335971 | 02-034-112 |
| 7/8" | 1 1/2" | 6 1/4" | 5336037 | 02-078-112 |
| 7/8" | 1 3/4" | 6 1/4" | 5336524 | 02-078-134 |
| 1" | 1 1/2" | 6 1/4" | 1918614 | 02-100-112 |
| 1" | 1 3/4" | 6 1/4 | 1918655 | 02-100-134 |
| 1" | 2" | 6 1/4" | 5336599 | 02-100-200 |
| 1 1/8" | 1 3/4" | 6 1/4" | 5336649 | 02-118-134 |
| 1 1/4" | 1 3/4" | 6 1/2" | 5336656 | 02-114-134 |
| 1 1/4" | 2" | 6 1/2" | 223990 | 02-114-200 |
| 1 1/4" | 2 1/4" | 6 1/2" | 224008 | 02-114-214 |
| 1 1/4 | 2 1/2" | 6 1/2" | 1271691 | 02-114-212 |
| 1 1/4" | 2 3/4" | 8 7/8" | 2496602 | 02-114-234 |
| 1 3/8" | 2 1/4" | 6 1/2" | 1271642 | 02-138-214 |
| 1 3/8" | 2 1/2" | 6 1/2" | 1271659 | 02-138-212 |
| 1 1/2 | 3 | 8 1/2" | 1271865 | 02-112-300 |
| 1 1/2" | 2 1/2" | 8 1/8" | 224016 | 02-112-212 |
| 1 1/2" | 3 1/2" | 3 3/4" | 10261410 | 02-112-312 |
| 1 3/4" | 3" | 8 1/8" | 224024 | 02-134-300 |
| 1 3/4" | 3 1/2" | 8 1/8" | 1918747 | 02-134-312 |
| 2" | 3 1/2" | 8 1/8" | 1918762 | 02-200-312 |
| 2" | 3" | 8 1/8" | 224040 | 02-200-300 |
| 2 1/4" | 3 1/2" | 8 1/2" | 5336672 | 02-214-312 |
| 2 1/2" | 3 1/2" | 8 1/2" | 5336706 | 02-212-312 |
| 2 1/2" | 4" | 8 1/2" | 1271634 | 02-212-400 |
| 3" | 4 1/2" | 10 1/8" | 5336714 | 02-112-312 |
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