PSS 02-85M-614 - Dripless Shaft Seal 85 mm, 6 1/4" Stern Tube

Article BB-02-85M-614

€ 3.732,01

1-2 weeks delivery time
Price incl. 19% VAT

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The PSS 02-85M-614 Dripless Shaft Seal is a mechanical face seal designed for marine applications, using a stainless-steel rotor and carbon flange to create a reliable sealing surface. The rotor compresses the bellows and is secured to the shaft, maintaining constant contact with the flange to handle propeller thrust. Its design compensates for misalignment and vibration, with temperature limits of 5°F to 225°F, pressure limits of 15 PSI, and a shaft RPM limit of 10,000. The bellows are made of molded nitrile-PVC, and the shaft and stern tube diameters are 85 mm and 6 1/4" to 6 3/8", respectively.

Description
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PSS 02-85M-614 - Dripless Shaft Seal 85 mm, 6 1/4" Stern Tube

The PSS Type A Shaft Seal is an advanced mechanical face seal that ensures reliable and dripless sealing for marine vessels. Designed for use with a stern tube, this seal compensates for vibrations, misalignments, and the movement caused by propeller thrust, providing efficient and maintenance-free operation.
- The sealing mechanism consists of a stainless-steel rotor and a stationary carbon flange.
- The carbon flange attaches to the bellows with hose clamps, while the bellows fit over the stern tube, secured by additional clamps.
- The stainless-steel rotor compresses the bellows before being fixed to the shaft with set screws, maintaining constant contact between the rotor and flange.
- The carbon flange is over-bored to the shaft, allowing it to float and compensate for misalignment and vibration.
- The stainless-steel rotor is sealed to the shaft by two O-rings, ensuring long-lasting performance without wear during operation.
Specifications
- Temperature Limits: 5°F to 225°F (-15°C to 107°C)
- Pressure Limits: 15 PSI (1 BAR)
- Shaft RPM Limits: 10,000 RPM
- Carbon Graphite: Lapped to 4 HLB (0.000044" tolerance)
- 316SS / Nitronic 50: Faced to 9-12 Ra
- Bellows Material: Molded Nitrile - PVC
- Shaft Diameter: 85 mm
- Stern Tube Diameter: 6 1/4" to 6 3/8"