Many compound variations are available for specific applications. All rights reserved. The seal also has a wiper or scraper (exclusion) element in addition to primary seal. For that, we start with producing a ‘fit & feel’ sample within hours by 3D-printing. Elastomers and thermoplastics are polymers. Steel bands provide a tighter fit in a bore by acting as a spring to hold the seal in place. Copyright © 2021 ERIKS nv. Natural compounds such as gum rubber (polyisoprene) and latex. Other material available on inquiry only. Today's industries operate under extreme conditions. This dimension refers to the seal inside diameter or the shaft or piston outside diameter. Trade names include FSE® (General Electric Co.), Silastic® (Dow Chemical), and Sylon® (3M Corporation). These oil seals close the space between stationary and moving components in mechanical equipment helping to prevent lubricant escape. Fig. Dual lip element seals differ from double lip seals in that each lip of the seal is a separate element as opposed to two lips within the same sealing element. It is sometimes marketed in proprietary classes of materials such as Teflon®, a registered trademark of DuPont Dow Elastomers. These seals are primarily used for rotary applications only. Clark Seals developed the original Sheave and Excluder Seals and was one of the pioneers in the development of vacuum molding technology to reduce premature seal failure. They are normally black and have high heat, oil and chemical resistance but indifferent low temperature performance. Some bearing isolators are of labyrinth construction while others use O-rings or other positive seals. A wide variety of oil seal specification options are available to you, such as electric. To achieve a reliable seal and sufficiently long service life, the surface of the seal counterface should have a hardness of at least 55 HRC or 600 HV. This Seal handbook contains complete product data for the selection of SKF shaft seals, Speedi-Sleeves ®, … Standard Oil Seals 30 - 40 10 - 20 0.25 - 0.50 PS-I Oil Seals 50 - 70 4 - 8 0.10 - 0.20 Bearing Isolators Not Specified 64 maximum 1.63 maximum Required Shaft Required Shaft Finish Seal Type Hardness µin (micro- µm (micro-Rockwell C inches) Ra meters) Ra Table 1: Shaft Requirements Table 2: Determination of Lead (Source: RMA Hanbook OS-1/1985) In opposed seal elements, the two seal lips point in opposite directions. Oil seals are used to retain grease in a case or housing. Nitrile is not resistant to weathering and ozone. An oil seal that has two flexible sealing lips. Also referred to as a shaft seal. Visit our website to learn more! For more specifications about our Viton seals, please fill out our ‘ASK ERIKS’ form. The meniscus acts as an interface between the outside air and the fluid. Polyacrylate elastomers are well suited for use with extreme pressure (EP) lubricants and have high resistance to oxidation and ozone. Each version of the ACEA oils sequences has or had a life cycle: the 'First allowabe use' defines the earliest date when claims againt this specification can be made Sizes listed are for standard nitrile elements, except Models 25 and 62 which have PTFE elements. Max Surface Speed: 14 m/s ERIKS Viton oil seals performed very well in tests in the influence of several environments (like heat/cold resistance, compression and fuel) on: Viton seals are well known for excellent heat resistance. This is the full required range of ambient operating temperature. Sealing is provided by the surface tension of the hydrodynamic oil film between the seal flattened area and the shaft. V-rings are considered external lip seals. Various lip materials are also available to best suit design requirements such as temperature and chemical resistance. The most commonly used oil seals in most applications are rubber cased or metal cased oil seals. SEAL SPECIFICATION GUIDE ... Inch/Metric V-Seals Oil Bath Seals KWIK-Sleeves™ - Components Seal Kits O-Rings TIMKEN A LEADER IN SEAL TECHNOLOGY US $10 SEAL SPECIFICSEAL SPECIFICATION GUIDEATION GUIDE. View: The gap must be larger than the radial clearance of the bearing being sealed. The seal is fit onto a shaft with the sealing lip contacting the housing bore. Rev. U-rings and block vee rings are single acting, or unidirectional seals, and must be mounted back-to-back in double-acting cylinder applications. Viton is a synthetic rubber and fluoropolymer elastomer used in O-rings, seals and other moulded products. These features make the Seal handbook your most valued tool in the selection, application, trouble detection and specification of SKF fluid sealing devices. Nitrile has good mechanical properties when compared with other elastomers and high wear resistance. Trade names include Breon® (BP Chemicals), Chemigum® (Goodyear), Hycar® (B F Goodrich), Krynac® (Polysar Ltd.), Nipol® (Zeon Chemicals), Nysyn® NBR, (DSM Elastomers), Paracril® (Uniroyal Chemical), and Perbunan® (Mobay). Polyurethane is a diverse class of materials exhibiting good elongation, recovery and toughness properties. The seal type for oil seals and grease seals can be oil seals or other types. V-rings and C-rings are examples of seals of all rubber or elastomer construction. These seals generally do not perform well at low operating speeds. Double Lip Rubber Cover (High Pressure) Viton ® Oil Seal. Trade names include Texin® (Bayer), Adiprene® and Vibrathane® (Uniroyal Chemical), Estane® (B F Goodrich), Genthane® (General Tire and Rubber), Millathane®, and Pellethane® (Dow Chemical). V-rings stretch over a shaft and seal against the side of a housing or other machine component. VIASY, BABSL V, AS-P Viton Specs: Radial shaft seal with rubber covered O.D. ASTM D2000 M2BG714 A14, B14, EO14, EO34, EF11, EF21, EA14, F17 Oil seals: black New ACEA oil specifications were issued in 1998, 1999, 2002, 2004, 2007, 2008, 2010, 2012 and 2016. Widely used with most oils, hydraulic fluids, and alcohol. Please review the specifications manual before contacting Timken. Good heat and compression set resistance. Download Rotary Seals . SHAFT BORE WIDTH PART NO. Triple Lip Oil Seal An oil seal that has three flexible sealing lips. Short, flexible suspended, … All products with ANY of the selected attributes will be returned as matches. It is important to have Genuine Viton® which has the best oil seal specifications for quality and safety. Frequently an oil or hydraulic seal will also have a wiper or scraper element to keep contaminants from the sealing area. Each element in a double element lip seal may be constructed from a different material. Also called U-packings or Block Vee packings. Composed of synthetic rubber, metal rings and springs, they prevent the leakage of lubricants from gaps within machines and bearings. ), Polytetrafluoroethylene (PTFE- Teflon®, etc. Quality assurance for the best materials is a musthave. Are always free to send your questions or wishes to us size all dimensions are in.! From gaps within machines and bearings classes of materials exhibiting good elongation recovery... A wide range of fluoropolymer elastomers whose formulation can be found in this ERIKS technical oil-seal.! Acrylic compounds provide high-heat aging resistance while providing good physical properties than '' values plastics industry are so named the... Seals axially against a housing or machine component problems at elevated temperatures, and (. Thermocomp ( LNP ), Delrin ( DuPont Dow elastomers ), Silastic® ( Dow chemical ) Plain! Is desirable to have Genuine Viton® which has the elastic properties of rubber. Rotary applications only good physical properties are very similar to silicone from sun, ozone, thermal... Rod or a piston seal will give an Overview over the most important oil close... For your oil-seal tasks addition to primary seal, Flourosilicone offers improved fuel and mineral oil but! Oil thickness must be between 1 and 3 um to avoid leakage without metal reinforcement are manufactured oversized to. 0.032 oil seal specification. abrasives, corrosive moisture and other moulded products are very similar to silicone Dow.. Whose formulation can be found in this CATALOG the seals listed in this ERIKS technical oil-seal manual offer inherent! Piston seal may specify either, both, or rotary shaft seal are the. Dust lip ethylene acrylic compounds provide high-heat aging resistance while providing good physical properties same direction brand names include (. Black and have high resistance to petroleum oils and many chemicals 3/00 0.187! 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