Stern Tube Seal Model:YH3-220. $ 248.00 $ 240.00. 2. info@shipcareplus.com Name: STERN TUBE SEAL BIO SEAL . A housing with series of seal rings clamped into position on the bush. Water Lubricated: With or Without Emergency Air Seal: With or Without . STERN TUBE SEAL BIO SEAL Wartsila 0 Contact us if you are looking for STERN TUBE SEAL BIO SEAL 0 or other marine equipment and ship spare parts from this manufacturer Wartsila. Shaft Diameter 2" inch 3819728 for stern tube diameter of 2 3/4" 2.75 inch Shaft Diameter 25MM 828254 stern tube diameter of 42mm ; The third type of stern tube seal is radial seal. It consists of a cast-iron or casted steel cylinder fitted with bearing surface within which the propeller shaft, enclosed in a sleeve, rotates. The Pss Shaft Seal Can Be Easily Retrofitted And Is Available For Shafts Ranging From 3/4" To 6" (20Mm To 150Mm). The wax and tallow provide lubrication so that the twine can be compressed against the shaft without abrading the metal. The sterntube is installed from aft and bolted to the stern frame boss. Depending on the vessel type, lubrication for the stern tube seals, stern tube, and strut bearings is accomplished by seawater, freshwater, or oil. 2. PSS Type A Maintenance Kit, PYI Inc 12 34 offers from $19.76 PSS PRO Shaft Seal, PYI Inc 7 Style 1029. 6. Conventional Stern Gear. !. . Oil lubricated sterntube requires two types of seals, one water/oil . Stern gland greaser is a vital component on a narrowboat to keep water our of the engine bilge. A gland nut or packing nut threads onto the stern tube. It has been very successful in service in blue water. Manufactured in the USA. The sealing surface is created between the flat surfaces of the rotating stainless-steel rotor and the stationary carbon flange. Dripless Shaft Seals - How They Work. Please note, the number on the rubber . In addition, the stern tube is the only piece that connects propellers to the ship. Stern Tube Gland Packing 5/16 (7.9 mm) 8 Meter Box $ 248.00 $ 240.00 Add to cart Mechanical Seals for: Centrifugal Pumps Slurry Pumps Submersible Pumps Mixers & Agitators A face-type seal with a uniquely shaped sealing ring made of rubber was developed and has been applied to various vessels instead of the conventional gland packing system. 1. Its width measures 1/8 to . Water Lubricated Stern Shaft Sealing Advantage 1. Home / Shop / Products tagged "stern tube packing" Showing all 2 results Sale! NOK's stern tube seals are approved by the classification societies of various countries. Home. Clean the stuffing box and shaft thoroughly. (2)Casing a. The head of the circulated liquid is lower than the head of a lubricant in . The packing hardens and can eventually do damage by wearing a slight groove in the shaft making it impossible to for a seal. The average 1.5" shaft stern gland would cost between $15 to $25 depending on the packing type used. Two nitrile o-rings seal the stainless steel rotor to the shaft and will not experience wear. With the new Cutless bearing inserted into one end of the tube, a shiny new PSS dripless seal mounted on the other end, the shaft mounted to the transmission, and the tube in place, a friend and I aligned the whole assembly with the engine and hull. Simplex sterntube seals. Curl one of your cut lengths into a ring around the shaft and push it into the stuffing box. In addition, use a reinforced neoprene gasket that is 1/16" to 1/8" thick between the flanges to prevent leakage. The annular chamber is filled with a liquid for lubricating the sealing elements. If you require assistance to decide exactly the correct seal, please call us first before ordering. As such . In the fields of operation and control of hydraulic and pneumatic equipment, in particular, NOK Packings are dramatically growing in performance. If you need help in sizing a shaft seal, call us on 01326 370060. Packing: in the carton or as your requirement Delivery Date: within 30 days after the order; JMT lip stern tube seal 1.Material:Viton 2.Type:JMT lip seal 3 . A typical installation for a pump is shown in Fig. Packingless Shaft Seals (PSS) Packingless Shaft Seals (PSS) are the successor to the stuffing box. China Shaft Bush for YH3-220 Stern Tube Seal: Stern Tube Seal Parts. 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. Gate Valve Packing Stern Tube Packing Carbon Graphite Gland . From small elastomer bellows seals used in millions of domestic water pumps to double mechanical seals that ensure maximum sealing safety and large, highly customized dry-running gas seals for mission critical high speed turbo compressors, John Crane has the right product for any application. A thin lm of water sits between the stationary carbon or ceramic ange and the stainless-steel rotor. We sell a couple of gland packing materials, PTFE flax and graphite cotton gland packing, on an 8 metre roll or per metre for maintenance. Interface contact is maintained by spring pressure from the flexible . Lip seals, which are connected to the tail shaft to prevent lubricant or water from passing through the shaft 3. Boatbuilders and boat yards recognize the advantages and value of installing the PSS as it eliminates the maintenance, constant adjustment, and cost associated with a traditional type of packing glands. d. Tighten the lock nut in the anchor pin. Routine maintenance means less trouble at sea and a more enjoyable day out or long holiday afloat. However, heavy wear and leakage problems 011 sliding surfaces were observed 011 some boats operated in brown water. View Cart. 3. Material: SS316 and Rubber. Face-type seals . Boat builders and Ship yards recognize the advantages and value of installing the PSS as it eliminates the maintenance, constant adjustment & cost associated with traditional packing type glands. Mechanical Seal Type: Double. c. Fix the infla retainer on the casing. The stern tube seals come in a variety of types, which include basic type CX, type DX containing a spare seal, pollution-free type AX, and type EVA combined with an end-face seal. Water or Grease Lubricated. The stuffing box is flanged and bolted to the stern tube. The stern tube, as the name suggests, is a hollow tube-like structure at the stern or rear part of the ship. Stuffing boxes are stocked in all sizes for immediate dispatch. This type of seal is split in two to make it easier to install, inspect and maintain. Most of the units use what's called a face-type seal, with flexible bellows attached to the stern tube (or stuffing box collar) that presses a fixed carbon/graphite flange against a rotating stainless-steel rotor which spins with the prop shaft, creating a seal . (D) Stern tube sizes: 51mm, 54mm, 60mm, 63.5mm, 70mm, 76.1mm . Packing rings 2. Shaft Sleeve for SM 350 Type Water Lubrication Tube Seal. Packing Type Common Stern Tube Seal Types Labyrinth Seals The general working principle of Labyrinth seals is to create a series of barriers that gradually reduce pressure such that the final seal is not subject to a large volume of sealing media at these higher pressures. Genuine & OEM spare parts made in China, Korea, Japan and Europe for Maritime, Oil & Gas Industry. Stuffing boxes, which uses packing material to seal the area 2. The shaft is wrapped by the packing and put in the gland nut. . Stern Tube Gland Packing 5/16 (7.9 mm) 8 Meter Box. Added on October 24, 2019 More Information Find additional warranty information Return Policy This material consists of braided twine impregnated with wax and tallow. At this time, be careful not to twist the anchor pin by fixing the square part of the pin with a wrench. Fit a Dial Gauge on the Rope Guard or Sterntube Nut so that the Gauge spindle is vertical and touching the Propeller Boss. Shaft Bush, Rubber Ring with Spring and O ring. 1 Typical stuffing box arrangement (ITT Goulds Pump) Once the flax packing wears down, it's time to replace it. cuff too far down and over the stern tube. To Properly Size Your Shaft Seal, Measure The Diameter Of The Shaft And The Outside Diameter Of Your Shaft Log/Stern Tube. Simplex sterntube seals Simplex sterntube seals Prevent ingress of water and avoid lubricating oil leakage Ineffective marine seals can be prone to water ingress that can be damaging to the system as it causes less lubricity and more corrosion. The Dutchman can be custom-built and added to any split design or solid stuffing box. There are three types of stern tube bearing arrangements that are used to accomplish these goals: 1. Crane Packing Limited: Stern seals for ships GB1575919A (en) * 1976-12-20: 1980 . Each stuffing box fits a particular shaft diameter and stern tube measurement. Mechanical Seals . The traditional stuffing box consists of stern tube which is slightly larger than the prop shaft. It can be press-fitted or installed with epoxy resin. Before oil lubricated stern tubes were the norm, ships were equipped with water lubricated stern tubes. Sterntube is the watertight tube enclosing and supporting the propeller shaft. 2" to 15" Diameter Shafts. 3. Installation of Stuffing Box Packing. Lantern ring 3. Strongly recommended for use particularly in marine applications such as stern tubes . Type 4600 water-lubricated stern tube seals are virtually leak-free and are leaving no oil or grease residues in the waterway. 2.Inflatable ring This might be used for about 5 years, but it is recommended to replace at the shaft withdrawal. The easy way to do this is to wrap the packing around the shaft in some accessible location and cut across the overlap with a razor knife. The liquid is circulated in a circulation system through a separating tank. Vegetable fibers (Ramie) packing braided in the High Controlled Density (HCD) method, deeply impregnated with large quantity of PTFE suspensoid and an inert syntetic lubricant. All types of Stern Bearing: 1. 5 in stock. Be sure to remove any silt, sand, metal filings and other grit that may cause shaft wear . Add an oil leakage into the mix and you could face considerable maintenance costs and unplanned downtime. 3 1/2" to 36" Diameter Shaft: Water Lubricated. . Packing is installed into what is referred to as a stuffing box. The stern tube gland seals the area between the shaft and stern tube but allows the shaft to rotate. Remove old packing from stuffing box (if replacing packing). [email protected] Type: SKC-480 Component: Stern Tube Seal Maker: Stern Keeper. Extremely resilient and ductile, will not stain or score the shaft. These consist of a Stuffing box, central tube (also called the centre bearing) are used around the propeller shaft at the point where the boat's hull is underwater. When the axial vibration <=1mm, SM Type can be sued. Aside from these benefits, the PSS Shaft Seal helps to eliminate water in the bilge ( 100% water tight) & wear to the propeller shaft. Packing is normally square in section and comes in a variety of dimensions. The PSS (Packless Sealing System) shaft seal is a mechanical face seal, which uses the seal created between the flat surfaces of the rotating stainless steel rotor and the stationary carbon flange. The Wrtsil Enviroguard M4 is an outboard, closed water lubricated stern tube seal. Install the gasket to mounting surface of the casing. Suitable for kinds of vessel whose working medium is water. A stern tube bearing for vessels is sealed off in a leakproof aft seal asbly which comprises at least one annular chamber between axially spaced sealing elements. This is better than replacing a $1,000 + propeller shaft! This rotor is attached to the shaft. Rings of soft packing material are placed in the stuffing box around the shaft. Used to provide a frequent supply of grease to the stuffing box/stern gland to keep the seal watertight and reduce wear on the propeller shaft . Its casing is divided into . China JMT lip stern tube seal products offered by Xingtai Top-Team Import And Export Trade CO.,Ltd, find more JMT lip stern tube seal suppliers & manufacturers on Hisupplier.com . For more information of the product, click the link below. Our seals are designed for oil-lubricated propeller shaft bearings and must achieve two important things: prevent the leakage of oil into the engine room or water and keep water out of the stern tube. Technical Specification SM/SMB Water Lubricated Stern Shaft Sealing Stern Shaft Sealing Photo When the axial vibration <=+/-3mm, and Speed is High SMB Type can be sued. The stationary carbon flange is attached to the front side of the bellow with hose clamps, and the back end of the bellow fits over the Stern tube and is secured . 1 Some small boats and crafts use surrounding seawater for cooling and a greased bearing for lubrication. Wrtsil Enviroguard MB is an inboard, closed water lubricated "omega" bellows, face type seal assembly. 12 - SHEET PACKING, 13 - SEAL RING WITH SPRING,SIZE#600, 14 - SEAL RING WITH SPRING,SIZE#600, 17 - TOOTHED LOCK WASHER, 20 - HEX.SOCKET PLUG, Stern Tube Gland Packing 3/8 (9.5 mm) 8 Meter Box Style SS2301 $ 258.00 $ 242.00 Add to cart Sale! PSS Seal PRICE FROM 180.36. Mechanical face seal type 76.95H modifies 75.95 seals for the prevention of axial displacement caused by dirt . Sterntube seals have to perform two separate functions, one is to ensure that water does not enter the engine room, the second one to allow the propeller shaft to rotate as smoothly and freely as possible. Shaft Diameter: 1.77 to 54.02. Various materials are used for the packing, traditionally flax, hemp and cotton, but more modern materials include graphite, acrylonitrile and Kevlar. material is collected in the oil filter of stern tube oil lubricated systems. Ideal replacement for packing glands and lip seals in marine or industrial environments Highly durable, low maintenance and cost-effective solution. A wood shoe is placed between the jack and the Propeller Boss. The propeller, located outside the ship, needs to be connected to the engine inside the ship's engine room. The packing is inside the gland nut and creates the seal. Maintenance and repairs can be performed with vessel afloat. Making it yourself is easy if you have the proper tools, almost impossible if you don't. Another approach is to use something else and adapt it for your purposes, like an old electric garden pump. Replacing the Packing. Drive Force PTFE flax gland packing rope is ideal for packing out shaft bearings and glands. . Gland packing must be regularly lubricated with quality water resistant grease, such as Morris grease. For more than 70 years, the Simplex sterntube seal has led the way in protecting your vessel from water ingress as well as leakages. The PSS Shaft Seal can be easily retrofitted and is available for shafts ranging from 3/4" (20mm) to 8" (205mm). The packing is wrapped around the shaft and inserted into the gland nut. These stern tubes had a bearing made with lignum vitae, a very hard and dense wood from South America. Screw the anchor pin to the inflatable ring. A stern tube is just a piece of pipe around a prop shaft, with bearings to keep the shaft centered and a provision to keep the water out. STERN TUBE A stern tube is a hollow tube that runs through the bottom of the ship from the main engine to the propeller. 1. 1.Seal ring The seal life might be considered approximately 24 years, but a little shorter in vessels with a deeper draft. Forward Stern Tube: Fwd Stern Tube, Rudder, Bulkhead: Forward Stern Tube: Face / Mechanical Type Seal: Packing Type Seal: Axial Shaft Seal: 3/4" to 7" Diameter Shafts. stern tube seal manufacturers/supplier, China stern tube seal manufacturer & factory list, find best price in Chinese stern tube seal manufacturers, suppliers, factories, exporters & wholesalers quickly on Made-in-China.com. SKU: SSS7.9Box8Meters Categories: Expanded PTFE Joint Sealant, Gland & Stuffing Box Packing Tags: marine gland packing, marine stern packing, stern gland packing, stern tube packing, stern tubes gland packing, sternglands, Stuffing Box Packing. A seal is created between the two flat surfaces of the carbon stator and the stainless steel rotor. from Federal-Mogul Powertrain. Category:Stern Tube Seal Material:Stainless Steel Packing Details:Wooden Box Delivery Time:5 Days Fob Price:Get Latest Price Now Place of Origin:China A ship needs a propeller to drive it forward against the waves. A hydraulic jack is placed on the Stern Frame Skeg at same point over a Keel Block so that the Skeg is supported.
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