Oil Seals: December 2014

Friday, December 19, 2014

different types oil seals Unique

The present invention will now be described with reference to the accompanying drawings.
FIG. 6 shows an oil seal manufactured by an oil seal manufacturing method in accordance with the present invention.different types oil seals Unique. Generally designated at 1 is an oil seal of the type provided on its outer periphery with a piece of rubber and also provided with a spring. The oil seal 1 comprises a metallic ring 3 which is fitted within a housing 2 and has a generally L-shaped section, and a sealing lip 4 which is made of an elastomeric material and extends from the inner edge of the metallic ring 3 to the side of sealed liquid L. The metallic ring 3 comprises a cylindrical portion 3a and a flange portion 3b extending radially inward from the atmospheric side end of the cylindrical portion 3a. The outer periphery of the cylindrical portion 3a is provided with an outer periphery rubber portion 5 which is bonded thereto and is integral therewith for providing a seal between the housing 2 and the ring 3 fitted therein. The atmospheric side surface of the flange portion 3b is also provided with a rubber portion 6 which covers a portion of that surface.
The sealing lip 4 has a lip tip portion 7 which is in sealing contact with a rotary shaft 8 and forms a sealing portion S. The central portion of the lip tip portion 7 projects radially inward in a generally triangular shape, and, as shown in an enlarged view in FIG. 7, this projection 71 is in sliding contact with the rotary shaft 8 to form a sliding surface 9. A different material layer 10 which is made of an elastomeric material which is different from that of the sealing lip is formed on the sealed liquid side surface of the lip tip portion 7 to form an integral structure with the sealing lip. More specifically, this different material layer 10 is provided on the sealed liquid side surface of the lip tip portion 7 in such a manner as to extend to the tip of the projection 71 of the lip tip portion 7. In addition, the sliding surface 9 of the lip tip portion 7 which is adapted to allow the rotary shaft 8 to slide thereon consists of first and second sliding surfaces 91 and 92 which are formed of different elastomeric materials. A spring received in a spring recess 12 formed on the outer periphery of the lip tip portion 7 is designated at 11.different types oil seals Unique.
FIGS. 8 to 13 show the illustrations for explaining oil seal manufacturing steps in accordance with an embodiment of the present invention. FIGS. 8 to 11 show a process of vulcanization molding the above-described sealing lip 4. A mold 20 used in the vulcanization molding generally comprises a lower mold half 21 and an upper mold half 22. The upper surface of the lower mold half 21 has an annular recess 23 to form a cavity 24 in cooperation with the lower surface of the upper mold half 22. The lower mold half 21 is divided into three sections and comprises an annular main section 211 of the lower mold half having a projection 25 on which the metallic ring 3 is placed when the ring is inserted into the cavity 24, an annular split section 212 of the lower mold half which is used in molding the outer periphery rubber portion 5, and a core section 213 which is fitted to the inner periphery of the main section 211 and has a position-determining lower mold halves 22 and 21 with each other by inserting in aligning the upper and the protrusion 213a into a position-determining hole 22a of the upper mold half 22. The core section 213 has an annular flat surface portion 213b which is formed around the stepped-protrusion 213a and on which an elastomeric material 30, described later, is to be placed. An annular groove 213d is formed around the inner edge of the flat surface portion 213b so as to be used in determining the position of the elastomeric material 30. oil sealing.On the other hand, a conical slope surface portion 213c is formed around and continuous with the outer edge of the flat surface portion 213b so as to be used in the molding of the sealed liquid side surface of the lip tip portion 7. The inner peripheral surface of the projection 25 of the main section 211 has a projecting portion 25a which has a semi-circular section and projects radially inward so as to be used in molding the spring recess 12 of the lip tip portion 7.
With the above-described mold 20, the vulcanization molding of the sealing lip is performed in the following way. The metallic ring 3 is first inserted into the recess 23 of the lower mold part 21 with the flange portion 3b facing upward. The cylindrical portion 3a of the metallic ring 3 is brought into contact with the radially outer periphery of the projection 25 of the main section 211 of the lower mold part so as to be centered. Two different elastomeric materials 30 and 31 are placed on the flat surface portion 213b formed on the upper surface of the core section 213 of the lower mold half 21 in a superposed condition. More specifically, these elastomeric materials have different moduli of elasticity, and in the illustrated example, the material that is to form the sealed liquid side surface of the lip tip portion 7 is placed below while the other material that is to form the atmospheric side surface of the lip tip portion 7 is placed above. In other words, although it is desired that the elastomeric material forming the sealed liquid side of the sealing lip portion of the oil seal has a modulus of elasticity or hardness lower than that of the elastomeric material forming the atmospheric side, the present invention is not limited to this relationship. The elastomeric material 30 which is to form the sealed liquid side surface and is placed below in the superposition is previously formed into a shape with a section like a frustum of a cone so as to be able to form the sealed liquid side surface of the lip tip portion 7. More specifically, as shown in FIG. 9, the material 30 has a side surface portion 30a with a predetermined thickness which is made uniform over the entire circumference, and the portion 30a is formed in conformity with the slope surface portion 213c of the core section 213 of the mold 20. A top surface portion 30b of the material 30 has a hole 30c into which the position-determining stepped-protrusion 213a formed on the upper surface of the core section 213 is inserted so that the material 30 can be placed on the flat surface portion 213b on the upper surface of the core section 213 by inserting the stepped-protrusion 213a into the hole 30c. In addition, the material 30 has an annular projection 30d (projecting downward in FIG. 9) formed around the edge of the hole 30c in the top surface portion 30b so that centering of the material can be performed by fitting the annular projection 30d in the annular groove 213d formed around the base of the stepped protrusion 213a on the upper surface of the core section 213.valve seal. On the other hand, the other elastomeric material 31 that is to form the atmospheric side of the lip tip portion 7 is formed into an annular shape and is in an unvulcanized condition. This material 31 can be fluidized when heated and compressed and can then be hardened by vulcanization.different types oil seals Unique.
As shown in FIGS. 10 and 11, the mold 20 is clamped so as to heat and compress the elastomeric materials 30 and 31 which have been placed on the lower mold half 21. The elastomeric material 31 is then fluidized and fills the entire cavity 24. In this embodiment of the present invention, the elastomeric material 31 that is to form the atmospheric side surface of the lip tip portion 7 is molded in such a manner that it not only forms the lip tip portion 7 but also covers the metallic ring 3 by flowing to the flange portion 3b and forming the outer peripheral rubber portion 5 of the sealing lip 4.
During this compression, the lower surface 22b of the upper mold part 22 is brought into close contact with the top surface portion 30b of the elastomeric material 30 that has been placed on the flat surface portion 213b of the core section 213 and, simultaneously, a portion of the elastomeric material 31 which fills the gap between the lower surface 22b of the upper mold part, which surface partly defines the cavity 24, and the slope surface portion 213c of the core section 213 forms a surplus portion 32 on the atmospheric side of the lip tip portion 7.
After the elastomeric material 31 within the mold 20 has been hardened, the mold is opened and the compacted structure is taken out of the mold 20. The process then proceeds to the formation of the atmospheric side surface of the lip tip portion 7 by cutting off the surplus portion 32 of the compacted structure 40 by means of a knife 41, as shown in FIG. 12. This cutting of the surplus portion 32 is performed, for instance, by using a lathe and cutting off the surplus portion 32 with the knife or scalpel 41 angled at a predetermined angle relative to the axis of rotation while the compacted structure 40 is being rotated with its outer periphery chucked. The atomospheric side of a sealing lip 4 is provided with a relief recess 42 which serves to prevent the tip of the knife 41 from contacting the bridge portion of the sealing lip 4 during the cutting operation.
In the lip tip portion 7 which has been subjected to the cutting operation in this way, and is shown on an enlarged scale in FIG. 13, a surface formed by cutting through the side surface portion 30a of the elastomeric material 30 is exposed on the atmospheric side of the lip tip portion 7. Consequently, the sliding surface 9 on the lip tip portion 7 is formed with an area having a width W shown in FIG. 13, and consists of a first sliding surface 91 on the sealed liquid L side, which is formed by a softer elastomeric material with a lower modulus of elasticity, and a second sliding surface 92 on the atmospheric side, which is formed by an elastomeric material with a higher modulus of elasticity. Since the elastomeric material 30 disposed on the sealed liquid side has previously been formed with a predetermined thickness, the width W1 of the first sliding surface 91 on the sealed liquid side can always be formed with a constant value. In addition, since the elastomeric material 30 is formed to have a uniform thickness, it is possible to maintain the width W1 of the first sliding surface 91 on the sealed liquid side at a constant value even when the sliding surface 9 becomes worn after a long period of use, thereby maintaining a constant hydrodynamic pumping action and thus ensuring a good sealing performance over a long period of time while eliminating any problems such as insufficient lubrication of the sliding surface.different types oil seals Unique.
The present invention has the construction and effect described above. According to the present invention, the lip tip portion of a sealing lip is vulcanization molded to form an integral structure using different elastomeric materials respectively on the sealed liquid side and the atmospheric side of the lip tip portion while allowing a surplus portion to remain on the atmospheric side, and, thereafter, the atmospheric side surface is formed by cutting off the surplus portion on the atmospheric side. Therefore, in contrast with the prior art in which it has been necessary to axially cut the lip tip portion after a surplus portion extending to the sealed liquid side has been cut in order to make a sliding surface on the lip tip portion formed of two different materials, the present invention enables such double cutting to be eliminated, thereby ahcieving a reduction in the number of processes. In addition, the method of the present invention enables the width of the sliding surface on the sealed liquid side to be formed with a predetermined value in the vulcanization molding, unlike the prior art in which the sliding surface is formed by the cutting that is performed after the molding, which means that the width of the sliding surface may be varied by the cutting. By virtue of eliminating any variation in the width of the sliding surface on the sealed liquid side, the method of the present invention is capable of manufacturing an oil seal which can exhibit a constant sealing performance.viton seal.
Further, the method of the present invention is capable of molding the elastomeric material on the sealed liquid side into a constant thickness, thus ensuring a constant width of the sliding surface on the sealed liquid side even if the sliding surface becomes worn, thereby enabling that a good lubrication is maintained and achieving an oil seal having a long life. different types oil seals Unique.

different types oil seals Unique

auto oil seals to win warm praise from customers

The present invention relates to a method of manufacturing an oil seal in which a sliding surface of a rotary shaft consists of different elastomeric materials having different moduli of elasticity or hardnesses so that a hydrodynamic pumping action is provided by making use of the deflection of a sealing surface that is caused by rotation of the rotary shaft.auto oil seals to win warm praise from customers.
1 shows an example of a conventional oil seal of this kind, as disclosed in U.S. Pat. No. 4,300,777. In this prior art reference, an oil seal generally designated at 100 has a metallic ring 100a having a generally L-shaped section, and a sealing lip 101 which is made of an elastomeric material is integrally bonded to the radial inner edge of the metallic ring 100a and extends to a sealed liquid side (i.e., to the right side as viewed in FIG. 1). The sealing lip 101 has a lip tip portion 102, and a side surface which is on the sealed liquid side of the lip tip portion 102 is provided with a different material layer 103 made of an elastomeric material which is different from the material of the sealing lip 101. ring seal.Thus, a sliding surface 105 which is in sealing contact with a shaft 104 is formed by first and second sliding surfaces 106 and 107 which are made of different rubbery materials. More specifically, the first sliding surface 106 is made o an elastomeric material having a lower modulus of elasticity than that of another elastomeric material employed for the second sliding surface 107. Therefore, when the shaft 104 is rotating, the sliding surface 105 is pulled in the direction of rotation of the shaft, with each of the first and second sliding surfaces 106 and 107 being deflected from the axial direction to a helical angle of 0, as shown in FIG. 2, due to the difference in modulus of elasticity. This deflection gives a certain inclination to fine projections on the surface of the sliding surfaces 106 and 107 to provide a hydrodynamic pumping action.auto oil seals to win warm praise from customers.
With respect to methods of manufacturing an oil seal of this kind, it is possible to adopt a method comprising molding the sealing lip 101 in a known manner and thereafter providing the different material layer 103 on the sealed liquid side surface of the lip tip portion 102, for instance, by bonding. This method, however, may result in an increase in the number of processes. In order to obtain a reduction in the number of processes, it is possible to adopt another method comprising vulcanization molding the sealing lip 101 and a different elastomeric material within a mold to form an integral structure. An example of this method of vulcanization molding different materials within a mold to form an integral structure is the method disclosed in Japanese Patent Publication No. 23681/1971, which is shown in FIGS. 3 and 4. This prior art discloses a method of molding a layer of a fluorine-containing-resin on a sliding surface of a sealing lip to form an integral structure, which comprises the steps of placing an elastomeric material 111 and a fluorine-containing-resin 112 within a mold 110 in a superposed condition, compression molding the material 111 and the resin 112 to form an integral structure in which a fluorine-containing-resin layer 112a is provided on the atmospheric side surface of the lip tip portion 102, and, after the compacted structure has been taken out of the mold, cutting, along the line C–C shown in FIG. 4, a surplus portion 113 that extends to the sealed liquid side of the lip tip portion 102.car seal.
Although this conventional method enables different materials to be molded to form an integral structure, the method means that the sliding surface 105′, which is formed by cutting the surplus portion 113 after vulcanization molding, is formed solely by a layer 103′ of the second material, i.e., the resin, as shown in FIG. 5, thus failing to obtain a sliding surface 105′ formed of two different materials. In order to compensate for this drawback, the lip tip portion 102 may be cut in the axial direction along a line D–D shown in FIG. 5 by means of a knife or scalpel so that the sliding surface 105′ will be formed of two different materials. This operation, however, requires highly precise control of the amount to be cut off from the lip tip portion 102 in order to prevent any variation in the respective widths W1 and W2 of the sliding surfaces 106′ and 107′, particularly a variation in the width W1 of the sliding surface 106′ on the sealed liquid side, because such a variation may cause variation in the deflection amount of the sliding surface during rotation of the shaft when the oil seal is used, and accordingly, variation in the hydrodynamic pumping action. In this respect, it is difficult to form the sliding surfaces properly.
Even if the the sliding surface 106′ on the sealed liquid side is formed to have a predetermined value of the width W1, this width W1 may increase after a long period of use as wear of the surface proceeds. This increase in the width W1 of the surface on the sealed liquid side causes an increased amount of deflection during rotation of the shaft, resulting in an increase in the degree of suction to which an external fluid is subjected by the hydrodynamic pumping action and accordingly insufficient lubrication of the sliding surface 105′, hence leading to various problems including seizure. auto oil seals to win warm praise from customers

three main oil seals in a Vespa engine

There are three main oil seals in a Vespa engine:
Main bearing oil seal (at the crank): Keeps the gearbox oil from mixing with the oil/gas mixture.
Flywheel side oil seal (at the crank): Keeps the oil/gas mix from the outside of the casing.
Rear wheel oil seal: Seals the gearbox oil around the rear axle.
There are also some more minor seals around the kickstart quadrant, the clutch cover, and the rear wheel back plate.
The main seals should be replaced every time the engine is taken apart as they are cheap to buy but they are buried pretty deep in the engine. If you have the engine apart you might as well drop them in.three main oil seals in a Vespa engine.mechanical seal.
To remove the clutch side seal use a screw driver to poke it out through the main bearing. Fitting a new one is as easy as pushing it in to place. The main oil seal is made from rubber with a metal center and has a circular spring around a flexible lip. This spring must always face the pressure (i.e. the crank web). mechanical seal.Above is a shot illustrating the ring (arrowed) with the rubber lip peeled back.
Above is the correct orientation of the clutch side oil seal. You can see the main bearing and circlip beyond. Older Vespas are similar except that the oil seal is outside the main bearing instead of inside. The difference is that when the bearing is on the crank side of the seal it is lubricated by the two stroke oil/gasoline mix, and when the bearing is on the outside of the oil seal it is lubricated by the transmission oil
Place the oil seal in with your fingers and push hard around the edges. Try to get the outer lip flush with the casing. This isn’t always possible and when it is stubborn you can use a large washer as long as the outer diameter of the washer is larger than the diameter of the seal. mechanical seal.Use a hammer and tap the face of the washer until the washer is flush with the casing.
Above is a shot of the oil seal correctly placed. The lip is as tight as it can go in the casing even though it is not entirely flush.three main oil seals in a Vespa engine.

tto oil seals Reputation

How to Stop Engine Valve Oil Seals From Leaking
A leaking valve seal can contribute to damage or failure in your engine. The most common leak is oil and it will be dark brown or yellow in color. If your oil level is low, you should check the valve cover and oil pan gaskets to see if there is a leaking seal. The valve seal leak can worsen over time, so it is important to stop it at the first sign of problems.
Step 1:
Add an oil stop-leak additive to your engine for a temporary fix. Add it in the oil filler tube, just as you would motor oil. An oil stop-leak additive is designed to give valve seals extended life by causing them to swell. shaft seal.The swelling of the seal may temporarily stop a leak.
Step 2:
Use a high mileage motor oil. These oils have seal conditioners in them to stop or reduce leaks. dust seal.The oil is designed to keep the valve seals soft and pliable in an effort to reduce corrosion that is caused by aging.tto oil seals Reputation.
Step 3:
Replace the leaking seal. Remove the cover over the seal. Scrape away any buildup that has occurred on the area where the new gasket will go. Put gasket sealer on both sides of the new gasket if it is made of cork.tto oil seals Reputation. If it is made of rubber, you will not need to apply the sealer. Position the new gasket into place in the spot where the old one was. Put the cover back on the new gasket and tighten the bolts.

rubber oil seals BROAD SPECTRUM

How to Replace an Oil Seal in an Evinrude Outboard
The most important part of lower unit maintenance is watching for the telltale signs of an oil leak, both during and after you go boating. When you see a sheen of oil on the surface of the water, a drop of oil on your propeller or gear case oil that looks milky, it’s time to replace the oil seal in your Evinrude outboard. Water can wreak havoc in the gear case of your lower unit and if oil can leak from your gear case, water can get in.rubber oil seals BROAD SPECTRUM.
Instructions
1
Remove the two propeller shaft bearing housing — the bearing carrier — retaining bolts. Use a small bearing driver to gently tap one of the bearing carrier ears, until it is cocked about 10 degrees from alignment with the gear case, exposing the back of the ears. viton seal.Use a rubber mallet to tap alternately on the back of each carrier ear, driving the carrier slowly back and out of the gear case. Protect the pinion and driveshaft gears from damage by keeping pressure inward on the propeller shaft while tapping the carrier.
2
Remove and discard the O-ring from the bearing carrier. Remove the seal saver from the bearing carrier. Temporarily reinstall the bearing carrier back into the gear case, then use a small internal-jawed puller and a slide-hammer to remove the seal from the bearing carrier. Remove the carrier from the housing again.rubber oil seals BROAD SPECTRUM.
3
Clean the bearing carrier O-ring groove of all traces of sealant. Apply a light coating of penetrating oil to the outer surface of the new propeller shaft seal, from the seal kit. Install the seal into the bearing carrier with the letters on the casing facing outward. bearing seal.Use a suitably sized socket or bearing driver and a mallet to gently tap the seal into the bearing carrier.
4
Apply a light coating of white marine grease to the lips of the new seal and to the new bearing carrier O-ring, also from the seal replacement kit. Install the new bearing carrier O-ring to the carrier groove. Wipe the carrier surface clean on either side of the groove with a clean cloth.
5
Apply a light coating of gasket sealant to the threads of the bearing carrier screws and to the flange around the O-ring on the bearing carrier housing, as well. Install the carrier over the propeller shaft and into the gear case, seating the carrier to the case while aligning the bolt ears.silicon seal.
6
Install the bearing carrier retaining bolts and tighten to 62 inch-pounds with a torque driver. Install the seal saver onto the propeller shaft with the lip facing outward and press it securely into position.rubber oil seals BROAD SPECTRUM.

oil seals gearbox PEOPLE FAVORITE

How to Replace Valve Stem Oil Seals
The advent of the overhead valve engine brought with it several problems. One such problem was that when the intake valve opened, the piston would draw oil down the valve stem into the cylinder. The oil would mix with the air and fuel and burn. The engine would then smoke, causing it to consume oil. Valve seals are used to block the direct draw down the valve’s stem. Some seals look like little umbrellas with holes in them, while some are just little O-rings that slide over the stem. Have a question? Get an answer from a mechanic now!
Instructions
1
Disconnect the negative battery cable from the battery.
2
Remove the spark plugs from the engine, using the spark plug wrench. mechanical seal.Mark the spark plug wires so they can be easily reconnected to their respected spark plug during reassembling.
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3
Remove the valve covers using a small socket and ratchet. Slowly rotate the engine by hand in the same direction as it runs, while someone your assistant holds his finger over the number one spark plug hole until compression is felt. When compression is felt, bring the zero line on the harmonic balancer within an inch of aligning the timing mark on the engine.Oil seals gearbox PEOPLE FAVORITE.
4
Cut a strip of paper one inch wide. Wrap the paper around the harmonic balancer and mark it so it can be cut the exact same circumference as the balancer. Measure the strip of paper, then divide the measurement by the number of cylinders in the engine. Mark those graduations on the paper. If the engine is a four cylinder, just fold the paper twice and mark the folds as graduations. If the engine is an eight cylinder, ring seal,fold the paper four times and mark the folds. Tape the paper to the harmonic balancer with the two ends of the paper at the zero line on the balancer.
5
Push all but two inches of the 1/4-inch nylon rope into the cylinder. Rotate the engine by hand until the rope inside the cylinder is wedged between the piston and valves. The nylon rope keeps the valves from dropping into the cylinder.
6
Remove the rocker arms from the valves on cylinder number one. Count the exact number of turns on the rocker arm nuts and record the numbers for easy replacement. Clamp the valve spring compressor on top of the valve spring washer and compress the spring. Push down on the compressor and carefully remove the split valve keepers. Take great care not drop the valve keepers into the engine. Remove the valve spring. Pull the old seal off the valve stem and replace it with a new valve seal.oil seals gearbox PEOPLE FAVORITE.
7
Place the valve spring that’s still in the spring compressor back onto the valve stem. Place the two split valve keepers into the tapered valve spring washer. Pull up the valve spring compressor to force the washer to seat the split valve keepers. Slowly loosen the valve compressor until the spring is supported between the valve keepers and the cylinder head. Repeat this step with the other valve on this cylinder so both valves seals are replaced. Reinstall the rocker arms and adjuster nuts.nok seal.
8
Back up the engine enough to remove the nylon rope from the cylinder. After removing the rope, rotate the engine by hand in the same direction that the engine runs, until the timing pointer is within an inch of the next alignment mark on the paper taped to the balancer. Consult the service manual for the firing order of your specific engine and push all but two inches of the nylon rope into the cylinder that follows cylinder number one. Rotate the engine until the rope is wedged between the piston and both valves and repeat steps 6 and 7. Follow this procedure until all the valve seals are replaced.
9
Check the valve cover gasket for damage. If gasket are damaged replace them. Reinstall the valve covers onto the cylinder heads and tighten. Reinstall the spark plugs and plug wires onto the proper spark plugs. Replace the negative battery terminal.oil seals gearbox PEOPLE FAVORITE.

nok oil seals Excellent quality

The Best Products to Stop a Crankshaft Oil Seal Leak
There are no miracle products on the market that can permanently stop or plug an oil leak by just adding them to your oil mixture, at least not without damaging your engine. Typically these products are designed for short-term use to temporarily plug the leak until you can properly replace the seal. They should not be used in your engine more than a couple of days. Have a question? Get an answer from a mechanic now!nok oil seals Excellent quality.
Stop Leak
There is no liquid fix for a crankshaft oil leak. Stop leak products seem enticing as many promise to seal or protect against engine damage, but most automotive experts will disagree. Many of these products contain abrasives to help temporarily seal small leaks, car seal,but they will do nothing for any major oil leak. They can also clog oil passages. Abrasive additives can damage engine parts in a short period of time. Many of these products can serve as a short-term solution, but they should not be used more than a couple of days. Their intended use is to preserve the vehicle until it can be delivered to a mechanic.
ATP Sealer
Among the many brands of stop leak intended for use in your engine, the most highly regarded is made by ATP. Because ATP’s AT205 Sealer is designed to not block oil passages, it might be the best product for the job. But even this sealer is only a temporary fix. silicon seal,Unlike the other thick gunk products that cause added friction within your engine, AT205 is available in a spray aerosol can and as a fluid additive.
New Crankshaft Seal
The only way to stop a crankshaft oil leak is to replace the leaking seal with a new one. The best plan for those with limited experience is to bring the vehicle to a licensed professional who can accurately diagnose the cause of the oil leak and likely replace the seal. Though the seal is a fairly inexpensive part, labor costs can be expensive. bearing seal,This option also can be an excellent opportunity for a mechanic to replace other engine parts, like the clutch or water pump, depending on where the leak is in your case.nok oil seals Excellent quality
With the proper guidance, the installation of a new crankshaft seal can easily be performed by an avid do-it-yourself enthusiast. For many vehicles, you may be able to repair the problem by replacing the front main seal. Depending on your vehicle, you may have to pull numerous parts, such as the radiator, to access the seal. Haynes repair manuals are a great resource. Haynes manuals are written to specific makes and models of vehicles to assist with everything from routine maintenance to do-it-yourself repairs. The Haynes manual lists the step-by-step operations needed to repair engine parts, including a crankshaft seal.nok oil seals Excellent quality.

Install Lip Oil Seals on a Shaft

How to Install Lip Oil Seals on a Shaft
Many axles and motors use a lip seal to prevent dirt, debris and moisture from entering its housing from the space around its shaft. A lip seal looks like a metal ring with a rubberized lip surrounding its center. The metal ring must sit firmly against the axle or motor’s housing, and the lip fills the void between the shaft and the metal ring. When installed correctly, a lip seal’s outside edge sits square with the housing and the shaft is centered within the lip. Have a question? Get an answer from a handyman now!Install Lip Oil Seals on a Shaft.
1.Inspect the lip seal’s gasket for nicks and tears. Notice the metal spring surrounding the inside of the rubberized gasket seal. Check the lip seal’s metal ring for dents and gouges. Never install a damaged lip seal.
2.Clean the shaft and the space in the housing that holds the lip seal with a rag. Remove all dirt and grease from these areas. Sand the shaft with sandpaper if it has rust on it. If the shaft has rust pits, replace the shaft. Pits cause oil leaks.rubber seal.
3.Coat the shaft and the inside edge of the lip seal, the edge with the metal spring, with the same type of grease or oil that the shaft’s housing contains. Use new oil or grease
4
Slide the lip seal over the shaft. The side of the lip seal with the metal spring must face the shaft’s housing. Use care to avoid damaging the lip seal as it slides over the shaft’s splines, if equipped.Install Lip Oil Seals on a Shaft.
5
Snug the outside of the lip seal against the housing. The edge of the lip seal must sit evenly against the housing. An out-of-aligned lip seal will leak.mechanical seal.
6
Slide a lip seal tool or large socket over the shaft until its rim touches the lip seal. A lip seal tool looks like an elongated cup.
7
Tap the end of the lip seal tool, or socket, with a hammer until the lip seal starts to enter the housing. This often requires several light taps.
8
Verify that the lip seal has entered the housing evenly. The exposed steel ring should have an even reveal completely around the housing. Use the lip seal tool, or socket, and hammer to adjust the reveal as needed.dust seal.
9
Seat the lip seal completely into the housing with the lip seal tool, or socket, and a hammer. Continue to seat the lip seal until its outside edge finishes flush with the housing.Install Lip Oil Seals on a Shaft.

Install Oil Seals in Lip Direction

How to Install Oil Seals in Lip Direction
Oil seals, also known as metal-clad seals, are directional. If you install one incorrectly, oil will bypass the seal. Some seals have a garter spring behind their sealing area. This spring keeps tension on the sealing surface to keep it tightly against the output shaft. The seals also have special characteristics that make them durable in the hot oil environment. The metal case is coated to help prevent it from leaking and help it fit tightly,bearing seal, and the rubber lip is made of special polymers to keep it flexible over years of service. Have a question? Get an answer from a mechanic now! Install Oil Seals in Lip Direction
1.Drill two small holes in the metal ring that holds the old seal in place. Place the holes opposite of each other. Use a screwdriver and insert two sheet-metal screws into each hole and use vise-lock pliers to pull out the old oil seals. Work side-to-side until the oil seal is removed.
2.Clean the surface where the old seal was installed. Examine the new seal and notice the direction of the outer lip. The bevel of the lip fits inward. The sloped part of the lip faces outward. When oil pressure presses against the inner bevel, the lip of the seal pushes out. If the slope faced inwards, the oil would flow out without any resistance.
3.Install the seal. Lubricate the seal with oil and twist it over the output shaft.silicon seal. Because the bevel is inward, the seal has some resistance. Push it into its housing and use a seal driver and hammer to tap it into place. Install Oil Seals in Lip Direction.

Tuesday, December 16, 2014

Oil Seals to Fix Engine Oil Leaks

Engine leaks are bad for your car, bad for your wallet and bad for the environment. The steps to take to stop them are easy.
1.The most common reason for engine oil leaks happens in older cars when the engine seals break down.
When this happens it creates a gap that allows the oil to seep out. Oil seals to Fix Engine Oil Leaks .
Taking care of this issue is as easy as a trip to your local department store or to your nearest auto part store.
Any of the stop leak products should help your leaky situation.
Make sure to follow the instructions closely on the back label of the stop leak product you choose.
Most of them are as simple as pouring them into the engine oil compartment and letting the car run for awhile.
2.The second most common oil leaking problem comes from forgetting to replace the oil drain plug after a DIY oil change or not making it tight enough. If you’re not sure about the amount of pressure to use check your vehicle owners manual. Oil seals to Fix Engine Oil Leaks .
If you had the oil change done at an auto boutique then just take your car back and explain what’s happening. Most businesses will take care of the problem without charging you.
3.For any other engine oil leaks you should take your car to a mechanic. This will save you money in the long run by making sure that you aren’t buying a new engine. Oil seals to Fix Engine Oil Leaks .

Oil Seals Types Specialty

Types of Oil Seals
Oil seals are designed to fit on valves and pipes in order to seal oil inside the required compartments. They perform two important functions: they keep the oil from escaping, allowing it to do its job of reducing friction and wear of machine parts without needing to be constantly replenished, and they keep foreign contaminants from entering and ruining the oil. While they are referred to as “oil seals,” they are used to hold any fluid inside a particular device, especially if it has moving parts. This is especially true for hydraulic systems. Have a question? Get an answer from an appliance repair specialist now!dust seal.
Composition
Oils seals need to form a very tight barrier with metal. The material best suited for this job is usually rubber. The rubber is treated to make it resistant to wear and corrosion by the oil and other present elements then shaped into specific contours depending on what type of seal it is making. Most oil seals are round, but the rubber used to make them can be smooth, undulating or cut in particular patterns. viton seal.To keep the seal firm and in place, the base is created from an equally resistant metal around which the rubber is formed.
Different types of rubber are used depending on what type of fluid is being sealed. Nitrillic rubber is used with mineral oils, grease, diesel oils and water. Polyacryllic and silicon seals are used for motor oils, while flourelastomer rubber seals are used in a wide variety of fuel-related oils and can withstand a wide range of temperatures.
Orientation of Seal
Oil seals can be used in many different situations. Some may be placed inside machines in moving rods that need to have a seal as they move along their shafts. Others are used externally, such as piston seals that are exposed to other elements and need to keep contaminants from reaching the oil as well as keep the oil from escaping. Some seals are made to perform equally well both internally and externally.Oil Seals Types
V-ring Seals
V-ring seals have two different sections of rubber, divided into a thick base and thinner flap that extends out forming a right angle space between the two pieces. When the seal is placed on a pipe, the outer flap bends in, contracting a forming a tighter v-shape with the base rubber section. They are easy to install and do not need a perfect fit to perform well, but can only withstand so much pressure before breaking or wearing apart.
Labyrinth seals
Labyrinth seals are wide seals created with many parallel grooves carved into the rubber, in effect creating a series of more simple seals designed to fit inside a shaft. This creates a tight maze that obstructs the oil from escaping, since leaks that make it past the first part are usually stopped later on by another groove of the seal. These seals are especially common in rotating mechanisms, where the rod needs to turn inside the shaft.cap seal.
Spring-installed versions
Many oil seals also include a thin spring next to the rubber. This spring is designed to force the rubber against the metal it forms that seal with, ensuring a stronger barrier against the oil. Springs create much stronger seals, but they also cause the rubber to wear away more quickly.Oil Seals Types.

Oil Seals Cross-Reference List

Oil Seals Cross-Reference List
All engines and machinery that use oil or liquids have seals. Seals usually fit around a shaft, and allow the shaft to turn freely but block the oil from leaking out. Thousands of seals may fit a particular shaft size or housing size. mechanical seal.For this reason, hundreds of seal manufacturers provide extensive cross-reference lists, so you can find the exact replacement seal to fit the application.
Determining Size
You have to determine the size of the shaft and the size of the housing the seal fits into if the old seal is unavailable. In essence, you have to determine the seal’s inside and outside diameter. Obtain a machinist’s micrometer and measure the shaft. If you do not know how to use a micrometer, take the shaft to a machine shop where they can measure the diameter for you. After, you must measure the diameter of the hole in the housing. This is the outside diameter of the seal. Again, a machine shop can do this for you. Oil Seals Cross-Reference List .
Determining Shape
Look at your old seal if its available. Some seals have a single inner lip, while some may have two or even three. A inner lip is the soft rubber part that rubs up against the shaft. Also, look at the outside metal ring. Some seals have a thin metal lip to catch on the housing, while others are smooth. Finally, wash the seal with dish soap and water. Inspect it closely for a manufacturer’s name and part number. If you can find this, cross-referencing a seal will be a lot easier.
Determining Materials
You have to determine the material the original seal was made out of. Some seals are made out of materials that withstand acids or withstand high temperatures. Investigate the liquid the seal was blocking and its normal operating temperature. Cross-reference lists will specify the material the new seals are made out of and what liquids the seal can and cannot be used on.
Reading The Charts
All seal manufacturers provide extensive cross-reference lists for their seals. This is so you can find a replacement seal if the original manufacturer went out of business or the seal is no longer manufactured. Every manufacturer approaches it differently. Oil Seals Cross-Reference List .For example, the KOK Seal Company provides a reference number, usually found on the old seal. The Timken Corporation wants you to provide a specific part number or provide a year and model for a vehicle. ring seal.The GBSA Company provides a cross-reference list for other manufacturers. If you investigate the seal cross-reference lists provided by the manufacturers, eventually you will find the seal you need.

Oil Seals Stop an Oil Leak

How to Stop an Oil Leak from the Oil Seal
The fluids in your vehicle are essential for proper engine functioning. There are times, however, that the fluids may leak out due to a damaged seal or gasket. Changing the oil seal on your oil filter will help to stop oil from leaking out of your vehicle. The procedure is straightforward and you will not only stop the leak, you will also have fresh oil in your engine when you are finished.
1.Purchase a new oil filter, oil seal and oil from an auto parts store. Have the year, make and model of your vehicle so you can obtain the appropriate items, or check your vehicle’s owner’s manual for the information.
2.Park your car and shut off the engine. Locate the drain plug for your vehicle. Usually it is on or near your oil pan, but every car is different. Consult your owner’s manual if you can’t find it.Oil Seals Stop an Oil Leak.
3.Put an oil drip pan under the drain plug and turn the drain plug counterclockwise with a socket wrench to remove it. Let the oil drain completely and then replace and tighten the drain plug.
4.Use an oil filter wrench to remove the oil filter by turning it counterclockwise. Flip the oil filter over and let the oil drain from it as well. After it has drained, flip the filter over and look at the old oil seal to see from where it was leaking.
5.Take a new oil filter and place a new oil seal on the top of it. Dip your finger into clean oil and rub the oil on the oil seal. This will help provide a better seal for the oil filter.
6.Position the new oil filter back into place and tighten it with the filter wrench.
7.Use a funnel to add oil to your engine through the oil filler cap. Add fluid in small amounts until the dipstick reads the appropriate level.Oil Seals Stop an Oil Leak.

Find Oil Seals Number by Size

How to Find an Oil Seal Number by Size
When doing maintenance on your car or any engine that uses oil for lubrication, it is beneficial to know the various product numbers of any oil seals you may need. This makes the ordering process more streamlined and allows the necessary seal to be in your hands as soon as possible so you can get back to work. To get the product number, all you need to know is the size of the shaft you need to seal. Have a question? Get an answer from a mechanic now! How to Find an Oil Seal Number by Size.
1.Measure the diameter of the shaft in inches. rubber sealing.An exact measurement can usually be found in the official specifications or service manual of the machine you are servicing.
2.Open an oil seal catalog like the one available on the websites for Garlock or Timken, two large manufacturers of oil seals.
3.Look for the size of your shaft in the catalog. They are listed in descending order with the shaft size being the first measurement listed.
4.Look to the left or the right of the size that matches your shaft. Staying in the same row, the product number for the oil seal will be listed in the column that is titled “Product Number.”

Find Oil Seals Number by Size

How to Size Oil Seals

How to Size Oil Seals
At the bottom of an engine is a reservoir for oil which is capped by the oil pan. At each end of the pan, there is a seal to prevent oil leaks. These seals come pre-cut or require a custom cut to fit correctly. silicon seal.Knowing how to size oil seals will assist you when you assemble the oil reservoir after repairing, inspecting or rebuilding an engine with a dual seal oil pan.
1.Measure the curvature of the bottom of the timing chain cover with a shoestring.viton seal. Lay the shoestring into the oil seal seat so that it fills the seat and runs out both sides of the seat where the oil pan mates to the motor. Add an extra 1/8 of an inch to the distance from one side to the other and mark it on the shoestring.How to Size Oil Seals.
2.Lay the shoestring out flat on a level surface and mark the length on a cutting surface. Make note of which measurement this is by writing “Front” or “Rear” before measuring or marking the next distance for the remaining oil seal.
3.Measure the rear oil seal seat at the back of the engine. Place the shoestring into the curvature of the rear oil seal seat and lay it out so that both ends extend past the beginning and the ends of the seat. Add an extra 1/8 of an inch to both ends and mark the length on the shoestring.
4.Lay the shoestring out and mark the length of the oil seal. Retrieve the new oil seal(s) and inspect them for damage. .Lay an oil seal next to one of the measurements so that the oil seal extends past the marks at each end. Mark the distance directly onto the rubber oil seal. Repeat for the remaining oil seal and cut to length.How to Size Oil Seals.

How to Install Oil Seals

How to Install Oil Seals
Oil seals come in a variety of shapes and sizes. They are often referred to as gaskets, o-rings, packing, or swivel seals and can be made of such things as rubber, cork, composites, and even leather.nok seal. Nonetheless, they are all made to do one thing, to ensure that the oil used by a machine has been sealed inside to keep it from leaking out, which could otherwise cause mechanical failure. Commercialized types of oil seals need to be pressed on using hydraulics or specialized tools, but common do-it-yourself o-rings and gaskets can be installed using the same basic techniques. Have a question? Get an answer from a handyman now!How to Install Oil Seals
1.Remove the original oil seal. An o-ring can be pried out with the edge of a flat-bladed screwdriver, and a gasket can be scraped off with a drywall knife.
2.Wipe any dirt, debris, and/or leftover oil from the area with your dry rag. If any sticking particles remain, scrap them off with your screwdriver or drywall knife.
3.Brush on some pipe dope to the area, which the new seal will cover.cap seal.
4.Place the seal over the pipe dope and press gently over the top to purge any air gaps between the pipe dope and the seal.
5.Brush on some pipe dope over the top of the seal.car seal. Make sure there is a solid and continuous application of pipe dope over the entire face of the seal.
6.Attach the part over the oil seal, lining up any screw or bolt holes, and tighten it up as per the manufacturer’s directions.How to Install Oil Seals.

How to Change Oil Seals on a Car

How to Change Oil Seals on a Car
If you put oil in your motor constantly, your oil seal might just be leaking. Checking and replacing the oil seal on your car will keep it running healthy, and keep you from having to replace the oil more than you should.
1.Warm up the vehicle by going for a short drive. ring seal.It is important to do this so that the oil will flow easily out of the reservoir. To change the seal you must change the oil.
2.Use a car jack to raise the vehicle, or pull the vehicle up on blocks. It is important to have easy access under the vehicle so you can remove and attach the oil filter.
3.Slide an oil pan under the oil drain plug. Slowly unscrew the oil drain plug and fully remove it. Allow the oil to drain for 20 minutes or longer. Do not continue until the flow of oil has nearly stopped completely.
4.Unscrew and remove the oil filter with a filter wrench. Be careful and keep in mind that it will be full of used oil. Set the filter upside down in the oil pan and allow it to fully drain before continuing.valve seal.
5.Remove the seal from the top of the filter gently. Make sure to dispose of this old seal and the used oil properly.
6.Use your finger to fully coat the seal with fresh oil. Then, reattach the oil filter and oil drain plug. When screwing in the filter, don’t do it too tight because that will compromise the seal. Just tighten it firmly so that it will not unscrew itself.
7.Open your hood and fill your oil reservoir with fresh oil according to your vehicle’s needs. dust seal.You may have to start the vehicle and let it run for a minute to allow the oil to circulate, then top off the fill. How to Change Oil Seals on a Car.

corteco oil seals Value for money

If your Briggs & Stratton engine uses quite a bit of oil and forms oil leak stains around the base of the engine block, the oil pan seal is deteriorating and can no longer hold the oil in the engine block. Replacing the oil seal is a quick job that will extend the Briggs & Stratton engine’s life and help you save money on oil.corteco oil seals Value for money.
Instructions
1
Flip the Briggs & Stratton engine upside down so the crankshaft is facing toward you.
2
Fit the proper-sized socket on the six to eight bolts holding the oil pan onto the base of the engine block. This will usually be 9/16-inch socket.
3
Unscrew all the oil pan bolts counterclockwise.
4
Pull the oil pan off the crankshaft to reveal the interior of the engine block.
5
Peal the oil pan gasket seal off the oil pan.corteco oil seals Value for money.

bearing oil seals Superior quality

Problem Solving Products, Inc. is certified by Dupont to sell Viton? o-rings. Be careful when buying Viton? o-rings from an unknown distributor because the quality may not be up to par. mechanical seal.Whether you are buying from us or someone else, we recommend you always make sure you are dealing with a certified distributor.bearing oil seals Superior quality.
Viton? is a fluorocarbon rubber. The fluorocarbon rubbers were first developed in the 1950s and have become very important to the seal industry. Viton? has a low compression set, is effective over a wide range of temperatures and is resistive to many chemicals. The working temperature range for Viton? is -15 degrees F to 400 degrees F, but it can sustain temperatures up to 600 degrees F for a short period of time.bearing oil seals Superior quality.
Effect of Temperature on Hardness in Viton? O-rings
The hardness of elastomer vulcanizates decreases with increasing temperature. The amount of the decrease depends upon the nature of the elastomer, the degree of cure, and the amount of plasticizer which is included in the compound.
Here is a convenient rule of thumb: At any temperature between 250° and 500°F (121° and 260° C) vulcanizates of Viton? are 15 to 16 durometer points softer than they are at room temperature. Accordingly, if 75 durometer A is required at 300°F (149° C) formulate for a room temperature hardness of about 90 A.shaft seal.
Three major general use grades of Viton?
There are three major general use grades of Viton? for o-rings and seals: A, B and F.bearing oil seals Superior quality.

auto oil seals reliable quality

The term “pneumatic seals” actually describes a class of seals that are used in applications with either rotary or reciprocating motions. Pneumatic seals are exposed to air with a minimum amount of lubrication. auto oil seals reliable quality.They are often used in pneumatic cylinders and valves and usually are not under high pressure. However, pneumatic seals may be exposed to high operating speeds.rubber seal.
Rod seals, piston seals, u-cups, vee-cups and flange packings are just some of the sealing designs that can be used for a pneumatic seal. Sometimes a composite seal is used as a pneumatic seal. rubber sealing.A composite seal is a product which has two or three materials manufactured into one seal. Often there will be an elastomer ring and a PTFE ring giving the seal the advantages of both materials.
The sealing orientation for pneumatic seals can include internal (rod seal), external (piston seal), symmetrical or axial seal. With the internal (rod) seal, the seal is fit into a housing bore and the sealing lip touches the shaft.rubber seal. With the external (piston) seal, the seal is placed onto a shaft and the sealing lip touches the housing bore. Since symmetric seals are the same on both sides they will function as either a rod or a piston seal. The axial seal fits axially against the housing.auto oil seals reliable quality。
Rotary applications need only one pneumatic seal (single acting) because it can seal in the one axial direction the application is moving. oil sealing.However, a reciprocating application will need two pneumatic seals (double acting) one for each of the directions.auto oil seals reliable quality.

various size silicone rubber oil seals

This article is about Shaft seals or popularly known as Oil Seals. The seals tend to play a major part in all assemblies in both rotary and axially moving shafts.various size silicone rubber oil seals.
Oil seals or shaft seals are an integral part in any rotating and moving part assembly. Oil seals find great deal of usage in gearboxes, hydraulic cylinders, etc. The usage of the seals in areas concerned with motion also earns them a name of “Dynamic Oil Seals.” The purpose of the oil seals is shaft seal.
· To act as a physical barrier retaining the lubricating oil where it is bound to be.
· To prevent thelubricating oil from leaking outside even under high pressure of the oil.various size silicone rubber oil seals.
· To act as a barrier and prevent dirt, contamination and other external entities from entering the system containing the lubricating oil.
1. The oil seal consists of a metal ring as the inner skeleton which provides the structural stability to the oil seal.
2. The outer skin is made of nitrile rubber and various other materials which are used based on the requirement.
3. The spring on the lip of the oil seal tends to provide support to the lip and prevents the lubricant from leaking outside and also prevents the entry of contaminants from outside.various size silicone rubber oil seals.

viton oil seals Made in China

The automobile contains a number of fluids that should all stay where they’re supposed to be. Oil spots, coolant leaks, mystery drips, and other tell tale signs of fluids leaving their rightful place in the automobile are a sign to take heed of maintenance.viton oil seals Made in China. Denying the existence of the ever-growing number of oil spots on the driveway is not going to make them go away. The source of the leak needs to be fixed.
Finger in the Dike
While oil spots on the driveway or garage floor can be ugly, an engine crankcase or transmission without oil can get really ugly. To figure out where the oil is leaking from place a large sheet of cardboard under the engine overnight. Oil leaks can be deceiving, rubber sealing,originating at a point other than the place where the oil meanders down and finally drips onto the ground. Follow your nose to determine if the leaking oil in question is engine or gear oil. Gear oil smells like rotten eggs thanks to the sulfur compounds blended in to aid in the gnashing of gears. Tip: once gear oil gets on clothing, it will smell like gear oil forever.viton oil seals Made in China.
Sometimes luck is good, and an oil leak is as simple as cinching down a few valve cover bolts, or replacing a useless oil drain plug gasket. Other times luck runs thin, and the dreaded phrase rear main or axle seal surfaces. The seals that keep oil from escaping past a spinning axle or engine crankshaft are of the same circular variety. The flexible rubber seal is housed in a metal carrier, which can be pressed into a transmission, differential, or engine cover semi-permanently. Replacing a valve cover gasket or oil drain plug grommet is relatively painless. Getting to and pulling a circular axle or oil seal can hurt a lot more, valve seal,and may involve fun things like pulling the engine or three quarters of the suspension out of the car.
Timing is EverythingA good time to inspect and replace axle seals is when replacing axles or half-shafts. Getting to the engine seals can be a bit more complex. Take a look at the rear main seal when the clutch and flywheel are out of the car. If the seal is leaking even a little, a good time to have at it would be then. These circular seals also live behind inner wheel bearings and other places where things spin with one end in oil or grease, and the other not.viton seal. To demonstrate the removal and replacement of a circular seal we hauled out a spare junkyard rear differential from a Mitsubishi Starion and put it on the table. Replacing the seal is usually the easy part.viton oil seals Made in China. Getting to the seals can at best be difficult, and at worst give rise to a story that can now be told in the comments.

oil seals high quality

Radial shaft oil seals should be installed firmly into the crankcase for a tight and secure fit. The inner circumference of the ring is the contact point to the rotating shaft and is mostly held in place with a circular spring to keep it sealed tight around the shaft.oil seals high quality. bearing seal.These items wear out regularly and should be replaced during every service of your motor. If the motor has not been run for a while the seals could be damaged. If the revs of your motor increase while it should be ticking over, the oil seal on the flywheel side of the crankshaft is probably defective or damaged. If you discover fuel mixed with your gearbox oil, the oil seal that sits on the clutch side of the crankshaft is the likely suspect.
We have oil seals produced by several manufacturers available, constructed using a variety of materials. The blue and black versions are made of a synthetic rubber, the blue type mostly produced by CORTECO are a little tougher than the black type which can be found in most engines as an OE PIAGGIO component. shaft seal.The brown seals are produced using a fluoro polymer material (FPM) are especially heat resistant (up to 160°) are harder wearing with more resistance against oil. Both types see wide spread use in all two -stroke motors.oil seals high quality.
Here at SIP there is no consensus amongst us as to which type is best, so we have solved this problem as PIAGGIO has done and stock all colours and types to keep everybody happy.
Helpful hint: As a rule of thumb,nok seal, to ensure correct positioning of your fresh oil seals, the ‘open’ side of the seal always faces towards the one of the chambers that it separates, with the higher pressure. This higher pressure also helps the inner circumference maintain the seal to the shaft by pushing the inner edge against it.v.

tto oil seals SALABLE PRODUCT

Oil seals (also know as rotary seals or shaft seals) cover a wide range of applications ranging from domestic equipments to automotive and power plant machinery, industrial pumps, gas and aircraft turbines and compressors. If yours is a modern system, the surface speed can go up to 30 m/s and operating temperature can be as high as 130 degree Celcius. tto oil seals SALABLE PRODUCT.Here at Advanced Sealing Devices, we make and design reliable oil seals for your demanding tasks. If the oil seal is not selected properly, then even a few percents of leakage can be inconvenient and incur expenses to a large number of users, as well as cause environmental pollution. We understand that the reliability and reputation of your system depends on the well functioning of these seals.
In making oil seals, we employ modern polymeric seal materials and we rely on our good understanding of the sealing mechanism that occur at the sealing interface. We will thus provide you with reliable oil seals and also to enhance protection of the environment.
The cross section of an oil seal is shown below. The figure on the left shows an oil seal with a rubber-encapsulated metal part, while the figure on the right is a fully metal casing oil seal.
Standard oil seals operate in a splash environment with no pressure or little pressure as low as 0.3 – 0.5 bars. If you have a higher pressure requirement, contact us and we can provide you with a different type of design. If a standard type of oil seal is used in a high pressure situation, lip distortion and wear will occur. This will shorten the lifespan of the oil seal and create unnecessary downtime. If your housing tolerances are not controlled as closely as standard housings, we can make the outer casing of oil seals with special profile so that the oil seals can seat properly in your housing before the assembly press tool is removed.
PTFE oil seals with stainless steel casing tto oil seals SALABLE PRODUCT.
If you application is such that the lubricating liquid is not continuously available, or the operating temperature, fluid compatibility, the speed and pressure are of a more demanding nature, then we can make oil seals using stainless steel outer casings with various pure and filled PTFE lips (type ASD SS-PTFE). This type of oil seal is now widely used by our customers in the automotive and transmissions industry. A stainless steel casing with a PTFE lip oil seal will support more highly rated machinery and allow longer oil change intervals. Our ASD SS-PTFE type is particularly suitable for dry running application, for example, an engine may run dry for some period during startup until oil splash is available especially after a long period of storage or transportation. There are certain design aspects that are required in your system before using our ASD SS-PTFE type oil seal; contact us and we will advise you on this aspect. The following are some examples of stainless steel oil seals we make for our customers.
Beside oil seals, we can also make sealing devices which seal on the radial face of your system, as opposed to the axial face for oil seals. With this type of seals, your shaft surface finish can be less critical and the seals can operate with minor runout and misalignment. tto oil seals SALABLE PRODUCT.