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PSS Shaft Seal Not Qualified for Free Shipping PSS Pro Shaft Seal 2-1/4
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PSS Shaft Seal PSS Pro Shaft Seal 2-1/4" Shaft and 3-1/2" Tub #03-214-312 $881.60 $948.41
Watch VideoPSS Shaft Seal 03-214-312 Prop Shaft SealsPRO Shaft Seal 2-1/4" Shaft & 3-1/2" TubeThe 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) 2 1/4" Stern Tube Dia. (B) 3-1/2" to 3-5/8" Uncompressed Length (C) 9.675"  Approx. Compressed Length 8.675"  Rotor Diameter (D) 4.2" Stern Cuff Length (E) 1.3" Normalized SKU: 03214312PSS Shaft Seal 03-214-312 Video
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PSS Shaft Seal Not Qualified for Free Shipping PSS Pro Shaft Seal 2-1/2
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PSS Shaft Seal PSS Pro Shaft Seal 2-1/2" Shaft and 4" Tube #03-212-400 $881.60
Watch VideoPSS Shaft Seal 03-212-400 Prop Shaft SealsPRO Shaft Seal 2-1/2" Shaft & 4" TubeThe 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) 2-1/2" Stern Tube Dia. (B) 4" to 4-1/8" Uncompressed Length (C) 9.800"  Approx. Compressed Length 8.800"  Rotor Diameter (D) 4.2" Stern Cuff Length (E) 1.3" Normalized SKU: 03212400PSS Shaft Seal 03-212-400 Video
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PSS Shaft Seal Not Qualified for Free Shipping PSS Shaft Seal 3
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PSS Shaft Seal PSS Shaft Seal 3" Shaft 5-1/2" Stern Tube #02-300-512 $1,280.00
PSS Shaft Seal 02-300-512 Prop Shaft Seals3" Shaft - 5-1/2" Stern TubeThe PSS Shaft Seal is the #1 selling marine mechanical seal worldwide and is installed as standard equipment by many of the worlds most reputable boat builders and boat yards. The PSS Shaft Seal is also recognized as the premiere retrofit (aftermarket) seal on the world market. Boat builders and boat yards recognize the advantages and value of installing the PSS as it eliminates the maintenance, constant adjustment & cost associated with traditional packing type glands. Aside from these benefits, the PSS Shaft Seal helps to eliminate water in the bilge (100% water tight) & wear to the propeller shaft. How Does it Work?1. Two nitrile o-rings seal the stainless steel rotor to the shaft and will not experience wear.2. A primary set screw and a backup set screw (2 sets) are used to secure the stainless steel rotor to the shaft.3. A seal is created between the two flat surfaces of the carbon stator and the stainless steel rotor.4. Water is fed into the PSS Shaft Seal for cooling/lubricating the seal faces on high speed vessels.5. The stationary carbon stator is attached to the nitrile bellow, which is attached to the stern tube (shaft log).RotorThe PSS stainless steel rotor is slid down the shaft and is secured to the shaft with set screws at 90° for maximum holding power. Precision tolerances are maintained by computer controlled lathes. The faces have a number 9 micro finish and are perpendicular to the bore to prevent run-out as the collar rotates. The carbon graphite stator will polish the face of the rotor during the first few minutes of operation. The stainless steel rotor should not need to be replaced under normal operating conditions. The stainless steel rotor used on the PSS Type A Shaft Seal is made from 316L stainless steel. Carbon StatorThe high density, resin impregnated carbon/graphite stator is a composite that is first mixed, molded and then formed under pressure. The blanks are then baked, machined and lapped. The face of our carbon is finished to a flatness of 4 helium light bands (measured .000044" of variation over entire lapped surface). The grade of carbon used in the PSS has an operating temperature over 500° Fahrenheit (+260° Celsius), and cannot melt if the seal runs dry, unlike a rubber lip seal or plastic face seal. The high density of the carbon greatly increases the longevity and wear resistance. Several commercial vessels have recorded over 40,000 (over 4-1/2 years of continuous operation) engine hours on the same, original components. The carbon should not need to be replaced under normal operating conditions. BellowThe PSS Type A Shaft Seal bellow is made from rubber (Nitrile), and has a temperature rating of -25°F to +225°F (-31°C to +107°C). Nitrile is known for its resistance to weathering. Nitrile rubber is exceptionally resistant to oils and non-polar solvents. It also offers good gas impermeability, abrasion resistance, and better thermal stability than most general purpose elastomers. Hose BarbFor high speed vessels it is required that a positive water supply be plumbed to the PSS Shaft Seal for the purpose of lubricating and cooling the seal faces. There are many sources of water supply, review the PSS Shaft Seal Installation Instructions for more information and note all plumbing must follow the standards and practices of proper boat plumbing. In most cases a slow speed boat that does not have a bearing the shaft log does not require positive water feed and can simply be "vented". Ideally the vent line will be run at least 2-3 feet above the water line and is close to the center line as possible to ensure the vent hose is never below the water line, even if the boat heels. Review the PSS Shaft Seal Installation Instructions for more details on venting the seal. Normalized SKU: 02300512
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PSS Shaft Seal Not Qualified for Free Shipping PSS Shaft Seal 3
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PSS Shaft Seal PSS Shaft Seal 3" Shaft 4 1/2" Tube #02-300-412 $1,024.80 $1,049.64
Download Literature Watch VideoPSS Shaft Seal 02-300-412 Prop Shaft SealsPSS Shaft Seal 3" Shaft 4-1/2" TubeShaft Diameter: 3"Stern Tube Diameter (D): 4-1/2" to 4-5/8"Total Length (A): 10.425"Total Length (compressed) (Compressed A): 9.175"Rotor Diameter (B): 5"Carbon Cuff Diameter (C): 4.25"Stern Cuff Length (E): 2.5"The PSS Shaft Seal is the number one selling marine mechanical seal worldwide and is installed as standard equipment by many of the worlds most reputable boat builders / yards. The PSS Shaft Seal is also recognized as the premiere retrofit (aftermarket) seal on the world market. Certified by Bureau Veritas, ABS & Rina: Boat builders / yards recognize the advantages and value of installing the PSS as it eliminates the maintenance, constant adjustment & cost associated with traditional packing type glands. Aside from these benefits, the PSS Shaft Seal helps to eliminate water in the bilge (100% water tight) & wear to the propeller shaft. The PSS Shaft Seal can be easily retrofitted and is available for shafts ranging from 3/4" (20mm) to 6" (150mm).The PSS Shaft Seal is a mechanical face seal that 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 vessels stern tube with hose clamps and the carbon flange is attached to the front side of the bellows with hose clamps. The stainless steel rotor is fit on the shaft in front of the carbon flange. The stainless steel rotor is used to compress the bellows before the collar is secured to the shaft with set-screws. This compression (pre-load) maintains contact between the faces and allows the PSS to compensate for the thrust from the propeller. The carbon flange is bored larger than the shaft diameter allowing it to "float" around the shaft and thus compensate for most misalignment and vibration problems. The stainless steel collar is sealed to the shaft by two o-rings that are recessed into the bore of the collar. These o-rings rotate with the shaft and stainless steel rotor and do not experience wear during operation.**As with any rubber hose below waterline, the PSS bellows must be inspected on a regular basis for any sign of wear, aging or chemical deterioration. PYI suggests as preventative maintenance that the PSS bellow be replaced in six year intervals. During bellows replacement it is recommended the o-rings & set screws in the stainless steel rotor also be replaced."Bellows may need to be more frequently inspected in an environment where non-sealed batteries emit sulfuric acid. Sulfuric acid vapor will accelerate rubber deterioration, as will an ozonater.The Maintenance Kit includes the items you need to properly maintain your PSS Shaft Seal. Included in the kit is one (1) PSS bellow, two (2) O-rings, five (5) set screws, four (4) new hose clamps and an allen key. Normalized SKU: 02300412PSS Shaft Seal 02-300-412 Literature Download Product BrochurePSS Shaft Seal 02-300-412 Video
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PSS Shaft Seal Not Qualified for Free Shipping PSS Shaft Seal 2-1/4
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PSS Shaft Seal PSS Shaft Seal 2-1/4" Shaft 4" Tube #02-214-400 $718.40 $787.47
Download Literature Watch VideoPSS Shaft Seal 02-214-400 Prop Shaft SealsPSS Shaft Seal 2-1/4" Shaft 4" TubeShaft Diameter: 2-1/4"Stern Tube Diameter (D): 4"Total Length (A): 9.625"Total Length (compressed) (Compressed A): 8.375"Rotor Diameter (B): 4.2"Carbon Cuff Diameter (C): 3.75"Stern Cuff Length (E): 2"The PSS Shaft Seal is the number one selling marine mechanical seal worldwide and is installed as standard equipment by many of the worlds most reputable boat builders / yards. The PSS Shaft Seal is also recognized as the premiere retrofit (aftermarket) seal on the world market. Certified by Bureau Veritas, ABS & Rina: Boat builders / yards recognize the advantages and value of installing the PSS as it eliminates the maintenance, constant adjustment & cost associated with traditional packing type glands. Aside from these benefits, the PSS Shaft Seal helps to eliminate water in the bilge (100% water tight) & wear to the propeller shaft. The PSS Shaft Seal can be easily retrofitted and is available for shafts ranging from 3/4" (20mm) to 6" (150mm).The PSS Shaft Seal is a mechanical face seal that 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 vessels stern tube with hose clamps and the carbon flange is attached to the front side of the bellows with hose clamps. The stainless steel rotor is fit on the shaft in front of the carbon flange. The stainless steel rotor is used to compress the bellows before the collar is secured to the shaft with set-screws. This compression (pre-load) maintains contact between the faces and allows the PSS to compensate for the thrust from the propeller. The carbon flange is bored larger than the shaft diameter allowing it to "float" around the shaft and thus compensate for most misalignment and vibration problems. The stainless steel collar is sealed to the shaft by two o-rings that are recessed into the bore of the collar. These o-rings rotate with the shaft and stainless steel rotor and do not experience wear during operation.**As with any rubber hose below waterline, the PSS bellows must be inspected on a regular basis for any sign of wear, aging or chemical deterioration. PYI suggests as preventative maintenance that the PSS bellow be replaced in six year intervals. During bellows replacement it is recommended the o-rings & set screws in the stainless steel rotor also be replaced."Bellows may need to be more frequently inspected in an environment where non-sealed batteries emit sulfuric acid. Sulfuric acid vapor will accelerate rubber deterioration, as will an ozonater.The Maintenance Kit includes the items you need to properly maintain your PSS Shaft Seal. Included in the kit is one (1) PSS bellow, two (2) O-rings, five (5) set screws, four (4) new hose clamps and an allen key. Normalized SKU: 02214400PSS Shaft Seal 02-214-400 Literature Download Product BrochurePSS Shaft Seal 02-214-400 Video
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PSS Shaft Seal Not Qualified for Free Shipping PSS Shaft Seal 1-1/2
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PSS Shaft Seal PSS Shaft Seal 1-1/2" Shaft 3-1/4" Tube #02-112-314 $490.40 $536.40
Download Literature Watch VideoPSS Shaft Seal 02-112-314 Prop Shaft SealsPSS Shaft Seal 1-1/2" Shaft 3-1/4" TubeShaft Diameter: 1-1/2"Stern Tube Diameter (D): 3-1/4" to 3-3/8"Total Length (A): 9.175"Total Length (compressed) (Compressed A): 8.175"Rotor Diameter (B): 3.75"Carbon Cuff Diameter (C): 3.25"Stern Cuff Length (E): 2"The PSS Shaft Seal is the number one selling marine mechanical seal worldwide and is installed as standard equipment by many of the worlds most reputable boat builders / yards. The PSS Shaft Seal is also recognized as the premiere retrofit (aftermarket) seal on the world market. Certified by Bureau Veritas, ABS & Rina: Boat builders / yards recognize the advantages and value of installing the PSS as it eliminates the maintenance, constant adjustment & cost associated with traditional packing type glands. Aside from these benefits, the PSS Shaft Seal helps to eliminate water in the bilge (100% water tight) & wear to the propeller shaft. The PSS Shaft Seal can be easily retrofitted and is available for shafts ranging from 3/4" (20mm) to 6" (150mm).The PSS Shaft Seal is a mechanical face seal that 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 vessels stern tube with hose clamps and the carbon flange is attached to the front side of the bellows with hose clamps. The stainless steel rotor is fit on the shaft in front of the carbon flange. The stainless steel rotor is used to compress the bellows before the collar is secured to the shaft with set-screws. This compression (pre-load) maintains contact between the faces and allows the PSS to compensate for the thrust from the propeller. The carbon flange is bored larger than the shaft diameter allowing it to "float" around the shaft and thus compensate for most misalignment and vibration problems. The stainless steel collar is sealed to the shaft by two o-rings that are recessed into the bore of the collar. These o-rings rotate with the shaft and stainless steel rotor and do not experience wear during operation.**As with any rubber hose below waterline, the PSS bellows must be inspected on a regular basis for any sign of wear, aging or chemical deterioration. PYI suggests as preventative maintenance that the PSS bellow be replaced in six year intervals. During bellows replacement it is recommended the o-rings & set screws in the stainless steel rotor also be replaced."Bellows may need to be more frequently inspected in an environment where non-sealed batteries emit sulfuric acid. Sulfuric acid vapor will accelerate rubber deterioration, as will an ozonater.The Maintenance Kit includes the items you need to properly maintain your PSS Shaft Seal. Included in the kit is one (1) PSS bellow, two (2) O-rings, five (5) set screws, four (4) new hose clamps and an allen key. Normalized SKU: 02112314PSS Shaft Seal 02-112-314 Literature Download Product BrochurePSS Shaft Seal 02-112-314 Video
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PSS Shaft Seal Not Qualified for Free Shipping PSS Shaft Seal 2
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PSS Shaft Seal PSS Shaft Seal 2" Shaft 2-3/4" Tube #02-200-234 $630.40 $690.46
Download Literature Watch VideoPSS Shaft Seal 02-200-234 Prop Shaft SealsPSS Shaft Seal 2" Shaft 2-3/4" TubeShaft Diameter: 2"Stern Tube Diameter (D): 2-3/4" to 2-7/8"Total Length (A): 9.175"Total Length (compressed) (Compressed A): 8.175"Rotor Diameter (B): 3.75"Carbon Cuff Diameter (C): 3.25"Stern Cuff Length (E): 2"The PSS Shaft Seal is the number one selling marine mechanical seal worldwide and is installed as standard equipment by many of the worlds most reputable boat builders / yards. The PSS Shaft Seal is also recognized as the premiere retrofit (aftermarket) seal on the world market. Certified by Bureau Veritas, ABS & Rina: Boat builders / yards recognize the advantages and value of installing the PSS as it eliminates the maintenance, constant adjustment & cost associated with traditional packing type glands. Aside from these benefits, the PSS Shaft Seal helps to eliminate water in the bilge (100% water tight) & wear to the propeller shaft. The PSS Shaft Seal can be easily retrofitted and is available for shafts ranging from 3/4" (20mm) to 6" (150mm).The PSS Shaft Seal is a mechanical face seal that 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 vessels stern tube with hose clamps and the carbon flange is attached to the front side of the bellows with hose clamps. The stainless steel rotor is fit on the shaft in front of the carbon flange. The stainless steel rotor is used to compress the bellows before the collar is secured to the shaft with set-screws. This compression (pre-load) maintains contact between the faces and allows the PSS to compensate for the thrust from the propeller. The carbon flange is bored larger than the shaft diameter allowing it to "float" around the shaft and thus compensate for most misalignment and vibration problems. The stainless steel collar is sealed to the shaft by two o-rings that are recessed into the bore of the collar. These o-rings rotate with the shaft and stainless steel rotor and do not experience wear during operation.**As with any rubber hose below waterline, the PSS bellows must be inspected on a regular basis for any sign of wear, aging or chemical deterioration. PYI suggests as preventative maintenance that the PSS bellow be replaced in six year intervals. During bellows replacement it is recommended the o-rings & set screws in the stainless steel rotor also be replaced."Bellows may need to be more frequently inspected in an environment where non-sealed batteries emit sulfuric acid. Sulfuric acid vapor will accelerate rubber deterioration, as will an ozonater.The Maintenance Kit includes the items you need to properly maintain your PSS Shaft Seal. Included in the kit is one (1) PSS bellow, two (2) O-rings, five (5) set screws, four (4) new hose clamps and an allen key. Normalized SKU: 02200234PSS Shaft Seal 02-200-234 Literature Download Product BrochurePSS Shaft Seal 02-200-234 Video
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BRP Qualifies for Free Shipping BRP Prop Shaft Seal #324632
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BRP BRP Prop Shaft Seal #324632 $40.73 $48.87
BRP 324632 Prop Shaft SealsBRP Prop Shaft Seal #324632Normalized SKU: 324632
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BRP Qualifies for Free Shipping BRP Seal Prop Shaft #324631
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BRP BRP Seal Prop Shaft #324631 $32.43 $38.70
BRP 324631 Prop Shaft SealsBRP Seal Prop Shaft #324631Normalized SKU: 324631
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PSS Shaft Seal PSS Shaft Seal 7/8" Shaft x 1.5-1.75" Long #02-078-112 $356.95 $445.51
PSS Shaft Seal 02-078-112 Prop Shaft SealsPSS Shaft Seal 7/8" Shaft x 1.5-1.75" Long #02-078-112Normalized SKU: 02078112UPC Code: 839662002516
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PSS Shaft Seal Qualifies for Free Shipping PSS Pro Shaft Seal 2
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PSS Shaft Seal PSS Pro Shaft Seal 2" Shaft and 3" Tube #03-200-300 $730.44 $870.91
Watch VideoPSS Shaft Seal 03-200-300 Prop Shaft SealsPRO Shaft Seal 2" Shaft & 3" TubeThe PSS PRO Shaft Seal is a mechanical face seal utilizing our proven stainless steel and carbon sealing components, but adds a reinforced silicone bellow, we include external rings standard on sizes +2-1/4" and optional on all smaller sizes, a secondary shaft retention collar, 316 Stainless Steel hose clamps (rolled edges & 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 that is suitable for a variety of 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 bellow which is 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 bellow , 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. 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 that are recessed into the bore of the rotor. 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) 2" Stern Tube Dia. (B) 3" to 3-1/8" Uncompressed Length (C) 9.268"  Approx. Compressed Length 8.268"  Rotor Diameter (D) 3.75" Stern Cuff Length (E) 1.3" Normalized SKU: 03200300UPC Code: 015568070020PSS Shaft Seal 03-200-300 Video
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PSS Shaft Seal Qualifies for Free Shipping PSS Pro Shaft Seal 2
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PSS Shaft Seal PSS Pro Shaft Seal 2" Shaft and 3-1/2" Tube #03-200-312 $730.44 $870.91
Watch VideoPSS Shaft Seal 03-200-312 Prop Shaft SealsPRO Shaft Seal 2" Shaft & 3-1/2" TubeThe PSS PRO Shaft Seal is a mechanical face seal utilizing our proven stainless steel and carbon sealing components, but adds a reinforced silicone bellow, we include external rings standard on sizes +2-1/4" and optional on all smaller sizes, a secondary shaft retention collar, 316 Stainless Steel hose clamps (rolled edges & 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 that is suitable for a variety of 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 bellow which is 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 bellow , 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. 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 that are recessed into the bore of the rotor. 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) 2" 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" Normalized SKU: 03200312UPC Code: 015568070044PSS Shaft Seal 03-200-312 Video
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Nautical Specialties Nautical Specialties 1-3/4" Shaft 3-1/2" Stern Tube Dual #E134-312 $465.85 $581.43
Nautical Specialties E134-312 Prop Shaft SealsNautical Specialties 1-3/4" Shaft 3-1/2" Stern Tube Dual #E134-312Normalized SKU: E134312
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Nautical Specialties Nautical Specialties-Back Up Seal for Dry Seal #EX-112 $50.63 $60.75
Nautical Specialties EX-112 Prop Shaft SealsNautical Specialties-Back Up Seal for Dry Seal #EX-112Normalized SKU: EX112
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Nautical Specialties Nautical Specialties 1-1/4" Shaft 2-1/2" Stern Tube Dual #G114-212 $475.85 $593.91
Nautical Specialties G114-212 Prop Shaft SealsNautical Specialties 1-1/4" Shaft 2-1/2" Stern Tube Dual #G114-212Normalized SKU: G114212
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Nautical Specialties Nautical Specialties 1-3/8" Shaft 2-1/2" Stern Tube Dual #E138-212 $358.79 $447.82
Nautical Specialties E138-212 Prop Shaft SealsNautical Specialties 1-3/8" Shaft 2-1/2" Stern Tube Dual #E138-212Normalized SKU: E138212
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Nautical Specialties Nautical Specialties 1-1/4" Shaft 2-1/2" Stern Tube Dual #E114-212 $338.88 $430.41
Nautical Specialties E114-212 Prop Shaft SealsNautical Specialties 1-1/4" Shaft 2-1/2" Stern Tube Dual #E114-212Normalized SKU: E114212
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Nautical Specialties Qualifies for Free Shipping Nautical Specialties 1-1/2
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Nautical Specialties Nautical Specialties 1-1/2" Shaft 2 5/8" Stern Tube Dual #E112-258 $402.19 $501.98
Nautical Specialties E112-258 Prop Shaft Seals Lasdrop's Elite dripless prop shaft seal assembly with back-up seal replaces 1 1/2 in. shaft x 2 5/8 in. stern tube traditional style packing box to prevent water from entering into the bilge.Elite series dripless shaft seal For 1 1/2 in. prop shafts with 2 5/8 in. stern tubes The Lasdrop Elite features a back up seal and housing that allows for future replacement of the seal without removal of the prop shaft or the dripless seal assembly Incorporates a water lubricated alignment bearing to properly align the unit to the shaft and a seal that is in constant low friction contact with the shaft which prevents water intrusion Compact lip seal designed for quick and easy installation Split-face makes it easy to replace inner lip seal with an optional back-up seal Seal housing is constructed of durable copolmer with built-in water lubricated bearing insuring proper shaft alignment Seal case encompassing back-up seal that rotates freely on the shaft until replacement is needed Utilizes premium blue silicone polyester reinforced hose Hose barbs are constructed of solid brass and are coated to prevent corrosion Hose clamps are manufactured of 316 stainless steel with indentations rather than perforations providing twice the tensile strength and eliminating friction as in regular clamps Two hose clamps provide for each connection point Virtually no metal to metal contact eliminates the risk of electrolysis Normalized SKU: E112258
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Nautical Specialties Nautical Specialties 1-1/4" Shaft 2 1/4" Stern Tube Dual #E114-214 $337.80 $429.03
Nautical Specialties E114-214 Prop Shaft SealsNautical Specialties 1-1/4" Shaft 2 1/4" Stern Tube Dual #E114-214Normalized SKU: E114214
Sold out -20% sale
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Nautical Specialties Nautical Specialties 1-1/2" Shaft 2-1/2" Stern Tube Dual #E112-212 $415.96 $519.17
Nautical Specialties E112-212 Prop Shaft SealsNautical Specialties 1-1/2" Shaft 2-1/2" Stern Tube Dual #E112-212Normalized SKU: E112212

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