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PSS Type A Shaft Seal for 80mm Shaft and 4-1/4" Stern Tube

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PSS SHAFT SEAL 02-80M-414 PSS Type A Shaft Seal for 80mm Shaft and 4-1/4" Stern Tube

Item #: 02-80M-414 by PSS SHAFT SEAL

Brand: PSS SHAFT SEAL

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$1,410.10

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WARNING: This Product May Contain Chemicals Known to the State of California to Cause Cancer or Reproductive Harm. To Learn More Visit P65Warnings.ca.gov
Features

Material

316L Stainless Steel, Carbon Composite, Nitrile Rubber

Shaft Diameter

80 mm

Length

13.0 Inch

Type

Shaft Sealing System

Stern Tube Diameter

4 1/4 in

Product Overview
PSS Type A Shaft Seal The Type A PSS 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 the front side of the bellows with hose clamps, and the back end of the bellows fits over the Stern tube and is secured with hose clamps. The stainless-steel rotor is fitted on the shaft in front of the carbon flange. The stainless-steel rotor compresses the bellows before the rotor is secured to the shaft with set screws. This compression (pre-load) maintains constant contact between the two flat faces of the stainless-steel rotor and carbon flange, allowing the PSS to compensate for the variable fore and aft 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 problems. The stainless-steel rotor is sealed to the shaft by two O-rings recessed into the collar's bore. These O-rings rotate with the shaft and stainless-steel rotor and do not experience wear during operation.