PSS shaft seals

 

PSS is a mechanical seal that guarantees 100% water-tightness for shafts ø 20mm-90mm (type A) and 100mm-150mm (type B). The seal is created between a stainless steel rotor that is fixed to the shaft and a carbon/graphite stator connected to the bellow that is attached to the stern tube of the ship.

The rotor is fixed with a set screw and is secured with two O-rings. O-rings do not rotate around the shaft, therefore, do not experience any wear.

The stator is made of high density, resin impregnated carbon/graphite compound manufactured in a special way to withhold high temperatures (~250°C) and wear. Material is so dense, there are records of 40,000+ hours of operation without replacement of original parts.

PSS shafts are represented in different designs, sizes and can be of many uses: propeller shaft seal, rudder seal and many other industrial/non-maritiem implications.

You can use our PSS shaft seal calculator to find a model you need for your ship.

PSS Type A shaft seal:

Part #Shaft Dia. (A)Stern Tube Dia. (B)Approx. Length (C)Approx. CompressionRotor Diameter (D)Stern Cuff Length (E)
02-20M-11420mm1-1/4" to 1-3/8"6.875"3/4"2.375"1.5"
02-20M-11220mm1-1/2" to 1-5/8"6.875"3/4"2.375"1.5"
02-20M-13420mm1-3/4" to 1-7/8"6.75"3/4"2.375"1.5"
02-20M-20020mm2" to 2-1/8"6.875"3/4"2.375"1.5"
02-20M-21420mm2-1/4" to 2-3/8"6.75"3/4"2.375"1.5"
02-20M-21220mm2-1/2" to 2-5/8"7.38"3/4"2.375"1.5"
02-22M-11422mm1-1/4" to 1-3/8"6.875"3/4"2.375"1.5"
02-22M-11222mm1-1/2" to 1-5/8"6.875"3/4"2.375"1.5"
02-22M-13422mm1-3/4" to 1-7/8"6.75"3/4"2.375"1.5"
02-22M-20022mm2" to 2-1/8"6.875"3/4"2.375"1.5"
02-22M-21422mm2-1/4" to 2-3/8"6.75"3/4"2.375"1.5"
02-22M-21222mm2-1/2" to 2-5/8"7.38"3/4"2.375"1.5"
02-25M-11425mm1-1/4" to 1-3/8"6.875"3/4"2.375"1.5"
02-25M-11225mm1-1/2" to 1-5/8"6.875"3/4"2.375"1.5"
02-25M-13425mm1-3/4" to 1-7/8"6.75"3/4"2.375"1.5"
02-25M-20025mm2" to 2-1/8"6.875"3/4"2.375"1.5"
02-25M-21425mm2-1/4" to 2-3/8"6.75"3/4"2.375"1.5"
02-25M-21225mm2-1/2" to 2-5/8"7.375"3/4"2.375"1.5"
02-28M-11428mm1-1/4" to 1-3/8"6.875"3/4"2.375"1.5"
02-28M-11228mm1-1/2" to 1-5/8"6.875"3/4"2.375"1.5"
02-28M-13428mm1-3/4" to 1-7/8"6.75"3/4"2.375"1.5"
02-28M-20028mm2" to 2-1/8"6.875"3/4"2.375"1.5"
02-28M-21428mm2-1/4" to 2-3/8"6.75"3/4"2.375"1.5"
02-28M-21228mm2-1/2" to 2-5/8"7.375"3/4"2.375"1.5"
02-30M-11430mm1-1/4" to 1-3/8"6.875"3/4"2.375"1.5"
02-30M-11230mm1-1/2" to 1-5/8"6.875"3/4"2.375"1.5"
02-30M-13430mm1-3/4" to 1-7/8"6.75"3/4"2.375"1.5"
02-30M-20030mm2" to 2-1/8"6.875"3/4"2.375"1.5"
02-30M-21430mm2-1/4" to 2-3/8"6.75"3/4"2.375"1.5"
02-30M-21230mm2-1/2" to 2-5/8"7.375"3/4"2.375"1.5"
02-32M-13432mm1-3/4" to 1-7/8"7.5"3/4"2.875"1.5"
02-32M-20032mm2" to 2-1/8"7.375"3/4"2.875"1.5"
02-32M-21432mm2-1/4" to 2-3/8"7.5"3/4"2.875"1.5"
02-32M-21232mm2-1/2" to 2-5/8"7.375"3/4"2.875"1.5"
02-32M-23432mm2-3/4" to 2-7/8"8.875"3/4"2.875"2"
02-32M-30032mm3" to 3-1/8"8.875"3/4"2.875"2"
02-32M-31432mm3-1/4" to 3-3/8"9.06"3/4"2.875"2"
02-32M-31232mm3-1/2" to 3-5/8"8.88"3/4"2.875"2"
02-35M-13435mm1-3/4" to 1-7/8"7.5"3/4"2.875"1.5"
02-35M-20035mm2" to 2-1/8"7.375"3/4"2.875"1.5"
02-35M-21435mm2-1/4" to 2-3/8"7.5"3/4"2.875"1.5"
02-35M-21235mm2-1/2" to 2-5/8"7.375"3/4"2.875"1.5"
02-35M-23435mm2-3/4" to 2-7/8"8.875"3/4"2.875"2"
02-35M-30035mm3" to 3-1/8"8.875"3/4"2.875"2"
02-35M-31435mm3-1/4" to 3-3/8"9.06"3/4"2.875"2"
02-35M-31235mm3-1/2" to 3-5/8"8.88"3/4"2.875"2"
02-38M-20038mm2" to 2-1/8"9.155"1"3.75"2"
02-38M-21438mm2-1/4" to 2-1/8"9.155"1"3.75"2"
02-38M-21238mm2-1/2" to 2-5/8"9.03"1"3.75"2"
02-38M-23438mm2-3/4" to 2-7/8"9.2175"1"3.75"2"
02-38M-30038mm3" to 3-1/8"9.03"1"3.75"2"
02-38M-31438mm3-1/4" to 3-3/8"9.2175"1"3.75"2"
02-38M-31238mm3-1/2" to 3-5/8"9.03"1"3.75"2"
02-38M-33438mm3-3/4" to 3-7/8"9.405"1"3.75"2"
02-38M-40038mm4" to 4-1/8"9.405"1"3.75"2"
02-40M-20040mm2" to 2-1/8"9.155"1"3.75"2"
02-40M-21440mm2-1/4" to 2-3/8"9.155"1"3.75"2"
02-40M-21240mm2-1/2" to 2-5/8"9.03"1"3.75"2"
02-40M-23440mm2-3/4" to 2-7/8"9.2175"1"3.75"2"
02-40M-30040mm3" to 3-1/8"9.03"1"3.75"2"
02-40M-31440mm3-1/4" to 3-3/8"9.2175"1"3.75"2"
02-40M-31240mm3-1/2" to 3-5/8"9.03"1"3.75"2"
02-40M-33440mm3-3/4" to 3-7/8"9.405"1"3.75"2"
02-40M-40040mm4" to 4-1/8"9.405"1"3.75"2"
02-45M-21445mm2-1/4" to 2-3/8"9.155"1"3.75"2"
02-45M-21245mm2-1/2" to 2-5/8"9.03"1"3.75"2"
02-45M-23445mm2-3/4" to 2-7/8"9.2175"1"3.75"2"
02-45M-30045mm3" to 3-1/8"9.03"1"3.75"2"
02-45M-31445mm3-1/4" to 3-3/8"9.2175"1"3.75"2"
02-45M-31245mm3-1/2" to 3-5/8"9.03"1"3.75"2"
02-45M-33445mm3-3/4" to 3-7/8"9.405"1"3.75"2"
02-45M-40045mm4" to 4-1/8"9.405"1"3.75"2"
02-50M-21250mm4" to 4-1/8"9.03"1"3.75"2"
02-50M-23450mm2-3/4" to 2-7/8"9.2175"1"3.75"2"
02-50M-30050mm3" to 3-1/8"9.03"1"3.75"2"
02-50M-31450mm3-1/4" to 3-3/8"9.2175"1"3.75"2"
02-50M-31250mm3-1/2" to 3-5/8"9.03"1"3.75"2"
02-50M-33450mm3-3/4" to 3-7/8"9.405"1"3.75"2"
02-50M-40050mm4" to 4-1/8"9.405"1"3.75"2"
02-55M-21255mm2-1/2" to 2-5/8"9.03"1"3.75"2"
02-55M-23455mm2-3/4" to 2-7/8"9.2175"1"3.75"2"
02-55M-30055mm3" to 3-1/8"9.03"1"3.75"2"
02-55M-31455mm3-1/4" to 3-3/8"9.2175"1"3.75"2"
02-55M-31255mm3-1/2" to 3-5/8"9.03"1"3.75"2"
02-55M-33455mm3-3/4" to 3-7/8"9.405"1"3.75"2"
02-55M-40055mm4" to 3-1/8"9.405"1"3.75"2"
02-60M-31460mm3-1/4" to 3-3/8"9.625"1"4.2"2"
02-60M-31260mm3-1/2" to 3-5/8"9.625"1"4.2"2"
02-60M-33460mm3-3/4" to 3-7/8"9.625"1"4.2"2"
02-60M-40060mm4" to 4-1/8"9.625"1"4.2"2"
02-60M-41460mm4-1/4" to 4-3/8"10.25"1"4.2"2.5"
02-60M-41260mm4-1/2" to 4-5/8"10.25"1"4.2"2.5"
02-60M-43460mm4-3/4" to 4-7/8"10.25"1"4.2"2.5"
02-60M-50060mm5" to 5-1/8"10.25"1"4.2"2.5"
02-65M-31465mm3-1/4" to 3-3/8"9.625"1"4.2"2"
02-65M-31265mm3-1/2" to 3-5/8"9.625"1"4.2"2"
02-65M-33465mm3-3/4" to 3-7/8"9.625"1"4.2"2"
02-65M-40065mm4" to 4-1/8"9.625"1"4.2"2"
02-65M-41465mm4-1/4" to 4-3/8"10.25"1"4.2"2.5"
02-65M-41265mm4-1/2" to 4-5/8"10.25"1"4.2"2.5"
02-65M-43465mm4-3/4" to 4-7/8"10.25"1"4.2"2.5"
02-65M-50065mm5" to 5-1/8"10.25"1"4.2"2.5"
02-70M-40070mm4" to 4-1/8"10.3125"1"5"2.5"
02-70M-41470mm4-1/4" to 4-3/8"10.3125"1"5"2.5"
02-70M-41270mm4-1/2" to 4-5/8"10.125"1"5"2.5"
02-70M-43470mm4-3/4" to 4-7/8"10.3125"1"5"2.5"
02-70M-50070mm5" to 5-1/8"10.125"1"5"2.5"
02-70M-51470mm5-1/4" to 5-3/8"10.25"1"5"2.5"
02-70M-51270mm5-1/2" to 5-5/8"10.25"1"5"2.5"
02-70M-53470mm5-3/4" to 5-7/8"10.25"1"5"2.5"
02-70M-60070mm6" to 6-1/8"10.25"1"5"2.5"
02-75M-40075mm4" to 4-1/8"10.3125"1"5"2.5"
02-75M-41475mm4-1/4" to 4-3/8"10.3125"1"5"2.5"
02-75M-41275mm4-1/2" to 4-5/8"10.125"1"5"2.5"
02-75M-43475mm4-3/4" to 4-7/8"10.3125"1"5"2.5"
02-75M-50075mm5" to 5-1/8"10.125"1"5"2.5"
02-75M-51475mm5-1/4" to 5-3/8"10.25"1"5"2.5"
02-75M-51275mm5-1/2" to 5-5/8"10.4375"1"5"2.5"
02-75M-53475mm5-3/4" to 5-7/8"10.25"1"5"2.5"
02-75M-60080mm6" to 6-1/8"10.25"1"5"2.5"
02-80M-40080mm4" to 4-1/8"10.3125"1"5"2.5"
02-80M-41480mm4-1/4" to 4-3/8"10.3125"1"5"2.5"
02-80M-43480mm4-3/4" to 4-7/8"10.3125"1"5"2.5"
02-80M-50080mm5" to 5-1/8"10.125"1"5"2.5"
02-80M-51480mm5-1/4" to 5-3/8"10.25"1"5"2.5"
02-80M-51280mm5-1/2" to 5-5/8"10.4375"1"5"2.5"
02-80M-53480mm5-3/4" to 5-7/8"10.25"1"5"2.5"
02-80M-60080mm6" to 6-1/8"10.25"1"5"2.5"
02-85M-41585mm4-1/2" to 4-5/8"10.8625"1"6"2.5"
02-85M-43485mm4-3/4" to 4-7/8"10.8625"1"6"2.5"
02-85M-50085mm5" to 5-1/8"10.8625"1"6"2.5"
02-85M-51485mm5-1/4" to 5-3/8"10.675"1"6"2.5"
02-85M-51285mm5-1/2" to 5-5/8"10.8625"1"6"2.5"
02-85M-53485mm5-3/4" to 5-7/8"10.8625"1"6"2.5"
02-85M-60085mm6" to 6-1/8"10.675"1"6"2.5"
02-90M-41290mm4-1/2" to 4-5/8"10.8625"1"6"2.5"
02-90M-43490mm4-3/4" to 4-7/8"10.8625"1"6"2.5"
02-90M-50090mm5" to 5-1/8"10.8625"1"6"2.5"
02-90M-51490mm5-1/4" to 5-3/8"10.675"1"6"2.5"
02-90M-51290mm5-1/2" to 5-5/8"10.8625"1"6"2.5"
02-90M-53490mm5-3/4" to 5-7/8"10.8625"1"6"2.5"
02-90M-60090mm6" to 6-1/8"10.675"1"6"2.5"
02-95M-41295mm4-1/2" to 4-5/8"10.8625"1"6"2.5"
02-95M-43495mm4-3/4" to 4-7/8"10.8625"1"6"2.5"
02-95M-50095mm5-1/8" to 5-1/8"10.8625"1"6"2.5"
02-95M-51495mm5-1/4" to 5-3/8"10.675"1"6"2.5"
02-95M-51295mm5-1/2" to 5-5/8"10.8625"1"6"2.5"
02-95M-53495mm5-3/4" to 5-7/8"10.8625"1"6"2.5"
02-95M-60095mm6" to 6-1/8"10.675"1"6"2.5"

PSS Type B shaft seal:

Part #Shaft Dia. (A)Stern Tube Dia. (B)Approx. Length (C)Approx. CompressionRotor Diameter (D)Stern Cuff Length (E)
02-100M-512100mm5-1/2" to 5-5/8"13.189"1" to 1-1/4"7"2.5"
02-100M-534100mm5-3/4" to 5-7/8"13.189"1" to 1-1/4"7"2.5"
02-100M-600100mm6" to 6-1/8"13.189"1" to 1-1/4"7"2.5"
02-100M-614100mm6-1/4" to 6-3/8"13.189"1" to 1-1/4"7"2.5"
02-100M-612100mm6-1/2" to 6-5/8"13.189"1" to 1-1/4"7"2.5"
02-100M-634100mm6-3/4" to 6-7/8"13.189"1" to 1-1/4"7"2.5"
02-100M-700100mm7" to 7-1/8"13.189"1" to 1-1/4"7"2.5"
02-110M-512110mm5-1/2" to 5-5/8"13.189"1" to 1-1/4"7"2.5"
02-110M-534110mm5-3/4" to 5-7/8"13.189"1" to 1-1/4"7"2.5"
02-110M-600110mm6" to 6-1/8"13.189"1" to 1-1/4"7"2.5"
02-110M-614110mm6-1/4" to 6-3/8"13.189"1" to 1-1/4"7"2.5"
02-110M-612110mm6-1/2" to 6-5/8"13.189"1" to 1-1/4"7"2.5"
02-110M-634110mm6-3/4" to 6-7/8"13.189"1" to 1-1/4"7"2.5"
02-110M-700110mm7" to 7-1/8"13.189"1" to 1-1/4"7"2.5"
02-115M-512115mm5-1/2" to 5-5/8"13.314"1" to 1-1/4"7.875"2.5"
02-115M-534115mm5-3/4" to 5-7/8"13.314"1" to 1-1/4"7.875"2.5"
02-115M-600115mm6" to 6-1/8"13.314"1" to 1-1/4"7.875"2.5"
02-115M-614115mm6-1/4" to 6-3/8"13.314"1" to 1-1/4"7.875"2.5"
02-115M-612115mm6-1/2" to 6-5/8"13.314"1" to 1-1/4"7.875"2.5"
02-115M-634115mm6-3/4" to 6-7/8"13.314"1" to 1-1/4"7.875"2.5"
02-115M-700115mm7" to 7-2/8"13.314"1" to 1-1/4"7.875"2.5"
02-120M-612120mm6-1/2" to 6-5/8"13.742"1" to 1-1/4"7.875"2.5"
02-120M-634120mm6-3/4" to 6-7/8"13.742"1" to 1-1/4"7.875"2.5"
02-120M-700120mm7" to 7-1/8"13.742"1" to 1-1/4"7.875"2.5"
02-120M-714120mm7-1/4" to 7-3/8"13.742"1" to 1-1/4"7.875"2.5"
02-120M-712120mm7-1/2" to 7-5/8"13.742"1" to 1-1/4"7.875"2.5"
02-120M-734120mm7-3/4" to 7-7/8"13.742"1" to 1-1/4"7.875"2.5"
02-120M-800120mm8" to 8-1/8"13.742"1" to 1-1/4"7.875"2.5"
02-120M-858120mm8-5/8" to 8-3/4"13.742"1" to 1-1/4"7.875"2.5"
02-130M-612130mm6-1/2" to 6-5/8"13.742"1" to 1-1/4"7.875"2.5"
02-130M-634130mm6-3/4" to 6-7/8"13.742"1" to 1-1/4"7.875"2.5"
02-130M-700130mm7" to 7-1/8"13.742"1" to 1-1/4"7.875"2.5"
02-130M-714130mm7-1/4" to 7-3/8"13.742"1" to 1-1/4"7.875"2.5"
02-130M-712130mm7-1/2" to 7-5/8"13.742"1" to 1-1/4"7.875"2.5"
02-130M-734130mm7-3/4" to 7-7/8"13.742"1" to 1-1/4"7.875"2.5"
02-130M-800130mm8" to 8-1/8"13.742"1" to 1-1/4"7.875"2.5"
02-130M-858130mm8-5/8" to 8-3/4"13.742"1" to 1-1/4"7.875"2.5"
02-140M-612140mm6-1/2" to 6-5/8"13.742"1" to 1-1/4"7.875"2.5"
02-140M-634140mm6-3/4" to 6-7/8"13.742"1" to 1-1/4"7.875"2.5"
02-140M-700140mm7" to 7-1/8"13.742"1" to 1-1/4"7.875"2.5"
02-140M-714140mm7-1/4" to 7-3/8"13.42"1" to 1-1/4"7.875"2.5"
02-140M-712140mm7-1/2" to 7-5/8"13.42"1" to 1-1/4"7.875"2.5"
02-140M-734140mm7-3/4" to 7-7/8"13.42"1" to 1-1/4"7.875"2.5"
02-140M-800140mm8" to 8-1/8"13.42"1" to 1-1/4"7.875"2.5"
02-140M-858140mm8-5/8" to 8-3/4"13.671"1" to 1-1/4"7.875"2.5"
02-150M-612150mm6-1/2" to 6-5/8"14.2415"1" to 1-1/4"8.875"2.5"
02-150M-634150mm6-3/4" to 6-7/8"14.2415"1" to 1-1/4"8.875"2.5"
02-150M-700150mm7" to 7-1/8"14.2415"1" to 1-1/4"8.875"2.5"
02-150M-714150mm7-1/4" to 7-3/8"13.9195"1" to 1-1/4"8.875"2.5"
02-150M-712150mm7-1/2" to 7-5/8"13.9195"1" to 1-1/4"8.875"2.5"
02-150M-734150mm7-3/4" to 7-7/8"13.9195"1" to 1-1/4"8.875"2.5"
02-150M-800150mm8" to 8-1/8"13.9195"1" to 1-1/4"8.875"2.5"
02-150M-858150mm8-5/8" to 8-3/4"14.2415"1" to 1-1/4"8.875"2.5"