Sourced from quality manufactuurers they are supplied in competitively priced packs in different compounds (most commonly Nitrile 70 durometer (70A) and sizes in inches.

SKF Edge products meet ISO and DIN standards, consisting of a rubber OD with specially designed seal lips to prevent downtime. Offering three times the pump rate of other solutions, SKF Edge extends service life and handles both dynamic runout and shaft-to-bore misalignment.

SKF V-Ring seals offer a simple-to-install solution for rotating shaft applications, including for uses as a secondary seal in highly-contaminated environments.

Lubricating oils, particularly relatively low-viscosity oils, are much more difficult to retain than greases.  In many grease lubricated applications, a non-spring-loaded sealing lip design or a V-ring can adequately retain the grease. More demanding applications may require HMS5 or CRW1 spring-loaded radial shaft seals. For oil retention, HMS5 or CRW1 spring-loaded radial shaft seals are recommended in order to achieve the necessary radial load and resistance to dynamic runout and shaft-to-bore misalignment for a satisfactory sealing performance. CRW1 seals are designed with SKF WAVE lips to provide improved pumping ability, regardless of the direction of shaft rotation.

Different MIL SPEC and other o-rings in a wide range of materials, Metric or Imperial (inch) sizes, and hardnesses are offered as part of our own (AVIATIONEU NEW ERA) product lines. Those of MS29513 series are made of Nitrile Rubber, the most commonly used rubber material due to its compatibility with most environments, good mechanical properties compared with other elastomers, high wear resistance as well as its relative cost compared to other rubber materials.The MS29513 o-rings are resistant to aircraft fuels (JP-4, JP-5), petroleum-based products over a temperature range of -40°F to +250°F, hydraulic fluids, most silicone fluids but not resistant to automotive fuels, weathering, sunlight and ozone. A small amount of fuel proof grease applied to these o-rings helps the installation and operation of primers.

Gaskets & other sealing parts for use on Textron Aviation Cessna, Beechcraft and Hawker aircraft. Also available as FAA-PMA approved parts from other manufacturers.

These seals are designed for large and very large diameters and are eminently suitable as secondary seals for applications where otherwise the primary seals would be subjected to excessive quantities of particulate contaminants or water. The seals do not rotate but seal axially against a rotating counterface.They are made of appropriately profiled strips of non-reinforced nitrile rubber which are held firmly in place by stainless steel screw-type clamps. They are available in the diameter range 150 to 4 600 mm.

For additional information Flurocarbon amd Nitrile/Buna-N materials please consult the Product Description section or contact us.

#104 - 2945 190th Street, Surrey, BC V3Z 0W5Phone: 604-525-6700 Fax: 604-525-4224Toll Free: 1-800-665-5444email: sales@greenlinehose.com

For additional information Flurocarbon amd Nitrile/Buna-N materials please consult the Product Description section or contact us.

The advanced SKF Wave lip technology is used for all SKF Scotseals. Scotseals include a multi-lip seal, an integrated wear sleeve, and high-performance elastomeric materials.

O-rings offer effective sealing over wide ranges of pressure, temperature, and movement, with the advantage of sealing pressure in both directions and reducing friction and wear on moving parts. The selection of a specific O-ring is based on a variety of factors, including fluid media resistance, temperature range, hardness, durability, gland size, static or dynamic application, etc.

ROTAX® aircraft engines form part of the product portfolio  of BRP-Powertrain GmbH & Co. KG which develops and manufactures engines for snowmobiles, watercrafts, boats, roadsters, all-terrain and side-by-side vehicles, motorcycles, carts, and aircrafts.

M83461 series Nitrile/Buna-N rubber and M83248 series Flurocarbon rubber o-rings are offered as part of our own (AVIATIONEU NEW ERA) product lines.  Sourced from quality manufactuurers they are supplied in competitively priced packs in different compounds, sizes, and hardnesses as specified by a two-digit Shore A durometer number,ranging from 20 (soft) to 90 (hard) depending on the compound, with number 70 being the most common one.

CRseal Finder

CR SEALS power tranmission seals (formerly Chicago Rawhide) are included as an SKF brand  in the company's portfolio for radial and axial shaft sealing solutions in power transmission applications. CR Seals provide superior reliability and performance by retaining lubricants, excluding contaminants, and maintaining seal integrity under pressure. Both radial and axial shaft seals are offered in different series outlined below for oil and grease sealing applications. Selecting an appropriate seal design and material depends on the intended use and the operating conditions of the application.

TRELLEBORG offers a wide range of hydraulic scrapers and wipers in metal, elastomer as well as Turcon® Polytetrafluoroethylene (PTFE) based or Zurcon® polyurethane materials specially engineered for hydraulic cylinder applications with excellent low-friction properties providing exceptional resistance to wear. A hydraulic wiper or scraper prevents contamination of the hydraulic medium that could damage wear rings, seals and other components. They are installed in sealing configurations in hydraulic cylinders to scrape dirt, foreign particles, chips or moisture from the rod of a hydraulic cylinder as it retracts into the hydraulic system.

Nitrile/Buna-N (NBR), presently the seal industry’s most widely used elastometer, Ethylene-Propylene (EPM/EPDM) used extensively for outdoor, weather-resistant uses and water applications,

Flurocarbon rubber compounds (also known as FPM, FKM, or trade names Viton®, Fluorel®, Technoflon®, Dai-El® ) combine high-temperature toughness with wide chemical agent compatibility,  and feature excellent resistance to petroleum products and solvents and good high-temperature compression set characteristics. The designations FPM, FKM and Viton® very often cause confusion although they all relate to one single base material. FPM is the international abbreviation according to DIN/ISO, FKM is the short form for the fluoroelastomer category according to the American standard ASTM while Viton® is the registered trade mark of DuPont Performance Elastomers.

The German DIN 3771 standard refers to all O-rings as sealing elements for fluid technology and identifies O-Ring sizes by their Inner Diameter (ID) &Cross Section (C/S). This standard has essentially been incorporated into the international standard ISO 3601 which sets the globally relevant O-ring dimensions and uniform rules for installation spaces and the properties of the O-rings. It defines metric O-rings according to the same dimension chart as DIN 3771 while it has been extended to include O-rings in imperial dimensions. ISO 3601 also goes beyond the German standard in the area of materials containing material requirements for O-rings that far exceed those of DIN 3771.

Please refer to the description of individual products for additional information and the attached Part Number Guide for Aerospace applications.

Neoprene® (Chloroprene) (CR) developed as oil-resistant substitute for natural rubber with resistance to ammonia and Freon® and therefore a superior sealing material for the refrigeration industry,

SKFCR Seals

Different MIL SPEC and other o-rings in a wide range of materials, Metric or Imperial (inch) sizes, and hardnesses are offered as part of our own (AVIATIONEU NEW ERA) product lines. Those of MS28775 series are rubber o-rings (replacing respective o-rings of AN6227 and AN6230 series). Sourced from quality manufactuurers they are supplied in competitively priced packs in different internal/outer diameters and cross-sections (thicknesses) in inches. MS28775 O-rings meet Spec. MIL-P- 5510A and are suitable for MIL-H-560B type hydraulic fluid oil in Type I systems @ -65°F to 275°F. AN6227 standard o-rings (packing) and AN6230 o-rings (gasket)are manufactured to Spec. MIL-P 25732 for use in hydraulic systems using MIL-0-5606 hydraulic oils. For sizing information on MS28775 series rubber o-rings and their correlation to AN6227 and AN6230 please consult the sizing table available in the Attachment section.

Fluorocarbon compounds (FPM / Viton®) / (Fluorel®) (FKM) combining high-temperature toughness with wide chemical agent compatibility, and

CR SEALS power tranmission seals (formerly Chicago Rawhide) are included as an SKF brand  in the company's portfolio for radial and axial shaft sealing solutions in power transmission applications. CR Seals provide superior reliability and performance by retaining lubricants, excluding contaminants, and maintaining seal integrity under pressure. Both radial and axial shaft seals are offered in different series for oil and grease sealing applications. Please refer to Product Description for additional information.

M83248 series Flurocarbon (Viton®) rubber o-rings (separately presented)are often used in place of those made by Nitrile rubber (NBR). They feature an extremely high fuel and heat resistance and they ideally suited for aircraft fuel system applications. These o-rings feature a high temperature resistance, excellent resistance to acids, fuels, mineral and vegetable oils and greases, aliphatic, aromatic and chlorinated hydrocarbons, non-flammable hydraulic fluids (HFD) and many organic solvents and chemicals, low swelling in ASTM oil No. 1, and IRM 902 and IRM 903, excellent resistance to aging and ozone as well as low gas permeability and low compression set.

CR SealsCross Reference

The CT1 axial seal is a split seal that can be clamped to a housing, with a sealing lip that runs on a rotating face and excludes contaminants. CT1 axial seals can be cut to any size, from 6 in. (152 mm) to over 300 in. (7620 mm).

Sealing parts such as o-rings, gasket rings, washers and other parts are used in BRP-ROTAX® aircraft engines. They are offered as certified or non certified parts from the manufacturer. Non certified parts can be used in ultralights or other aircraft not requiring certification of parts for their installation. Certified parts are designated by the letters "CERT" in the product reference number (SKU).

SKF Wave is a trusted solution used in oil applications across industries, protecting rotating equipment in even the harshest environments. SKF Wave products feature lips molded in a sinusoidal wave pattern onto a case with a metal OD to reduce shaft wear and cut down on energy consumption.

HONEYWELL AEROSPACE seals are engine parts widely used in aerospace applications. They are also available as FAA-PMA parts from other manufacturers. Supply of the specific parts can be effected either as OEM part numbers or any of respective FAA-PMA  part numbers subject to their availability by our suppliers.

The SKF Flex series includes heavy-duty, metal-cased, and rubber seals for heavy industrial applications. These seals are customizable to accommodate any shaft or bore size over 4 in (100 mm).

P/N: 2-300-778-01 Fuel Manifold Gasket Seal is used in combustor turbine modules. It is also available as FAA-PMA part with alternative P/N: DEC2-300-778-01 by HEICO AEROSPACE and P/N: NK1004054-10 by EATON CORPORATION.

O-rings offer effective sealing over wide ranges of pressure, temperature, and movement, with the advantage of sealing pressure in both directions and reducing friction and wear on moving parts. The selection of a specific O-ring is based on a variety of factors, including fluid media resistance, temperature range, hardness, durability, gland size, static or dynamic application, etc. The use of O-rings as gaskets or static seals permits metal-to-metal contact and allows almost unlimited pressures under extreme vibration. All O-rings should be lubricated before installation and constant lubrication should be provided for running seals to avoid excessive wear. Sharp edges, threads, and cross-drilled ports over or through which rings must be installed should be avoided.

Cr sealsby size

BRP-ROTAX® product range includes certified and non certified internal combustion engines, parts and accessories for light and ultralight aircraft.

TRELLEBORG o-rings are widely used seals as they are efficient and economical and can be used in a wide variety of static and dynamic applications to seal practically all liquid and gaseous media.They are available in elastomeric and other materials including (among others) EPDM, FKM and NBR, offered in sizes from 10 mm to 250 mm and suitable for use in operating conditions of -40 °C to 200 °C & 25 MPa max pressure. The o-rings are used predominantly for static sealing applications as a radial static seal, e.g. for bushings,covers,pipes,cylinders,rods or as an axial static seal, e.g. for flanges,plates,caps. Their applications include from repairs or maintenance to quality assured sealing applications in aerospace,automotive or general engineering.Compared with other sealing elements,the TRELLEBORG o-rings have a wide range of advantages:

SKF metal faced seals were originally developed for severe conditions and low speeds that impact off-road and tracked vehicles, but have proven equally useful in applications exposed to sand, soil, mud, water, and more.

Contaminant exclusion can be achieved with the use of V-rings or a seal design that incorporates an auxiliary lip, for example the HMSA10 or CRWA1 seals. For tough operating conditions, SKF WAVE seals with hydrodynamic features are recommended.

TRELLEBORG Turcon® and Zurcon® Excluders are offered in Metric or Inch versions, in different sizes either as sets with matching o-rings or without o-rings. Metric version includes sizes 10 mm to 240 mm. Operating conditions: Temperature: -35 °C to 100 °C,  Speed (max):1 m/s. Appearing prices of Turcon® and Zurcon® Excluders relate to sets of scrapers and o-rings unless otherwise specified.

CR Sealscatalog pdf

In many applications, the exclusion of contaminants is just as important as lubricant retention. Seals with an auxiliary lip, like the HMSA10 seals, are appropriate for these applications or HDDF metal face seals in case of extremely tough operating conditions.

National oil seal cross reference chart

A grease seal, often called an oil or dirt seal, is a type of seal utilized to retain grease in a case or housing. Grease seals close spaces between stationary and moving components in mechanical equipment, helping prevent lubricant escape. Preventing harmful containments from entering machinery is another critical function of a grease seal. Oil and grease seals are available in numerous lip materials. Popular materials include felt, leather, urethane, nitrile, polyacrylate, ethylene-acrylic or polyacrylic, silicone, fluoro-elastomer, tetrafluoro-ethylene propylene and PTFE. Cleveland Grease Seals are intended for use in Cleveland Wheel Assemblies.

ISO 3601 / DIN 3771 standard O-rings are offered as part of our own (AVIATIONEU NEW ERA) product lines. Sourced from quality manufactuurers they are supplied in competitively priced packs in different materials, sizes, and hardnesses as specified by a two-digit Shore A durometer number,ranging from 20 (soft) to 90 (hard), depending on the type of elastomer.

TRELLEBORG Turcon® and Zurcon® Excluders are Trelleborg proprietary design based double-acting hydraulic scrapers with matching o-rings or without o-rings.TRELLEBORG Turcon® Excluder® 2  double-acting o-ring energized hydraulic scrapers have two functions: a) to scrape contaminants from the retracting piston rod to prevent soiling of the system and b) to hold back the residual oil film on the extending piston rod on the medium side. The o-ring maintains the pressure while the Excluder® 2 performs the scraper function. Excellent sliding properties and stick-slip free.

Fluorosilicone (FVMQ) combining the good high and low temperature stability of silicones with the fuel, oil and solvent resistance of fluorocarbons.

SKF seal catalog pdf

M83248 series Flurocarbon rubber o-rings feature an extremely high fuel and heat resistance and they ideally suited for aircraft fuel system applications. These o-rings feature a high temperature resistance, excellent resistance to acids, fuels, mineral and vegetable oils and greases, aliphatic, aromatic and chlorinated hydrocarbons, non-flammable hydraulic fluids (HFD) and many organic solvents and chemicals, low swelling in ASTM oil No. 1, and IRM 902 and IRM 903, excellent resistance to aging and ozone as well as low gas permeability and low compression set.

M83248 series Flurocarbon rubber o-rings are offered as part of our own (AVIATIONEU NEW ERA) product lines. Sourced from quality manufactuurers they are supplied in competitively priced packs in different sizes.

Nitrile/Buna-N (NBR) is presently the seal industry’s most widely used elastometer. Buna-N o-rings (also referred to as NBR) and Nitrile o-rings are the most widely used in the word and default choice for basic applications because of their low cost, good mechanical performance with resistance to water, most basic oils, lubricants and some fuels, many pneumatic and hydraulic systems. Buna-N o-rings are not recommended for exposure to sunlight, UV light, ozone and general outdoor weathering or hash chemicals, acids, keytones and many others.They combine excellent resistance to petroleum-based oils and fuels, silicone greases, hydraulic fluids, water and alcohols and feature a good balance of desirable working properties such as low compression set, high tensile strength and high abrasion resistance. M83461 series Nitrile/Buna-N rubber o-rings are flexible, preformed o-rings specially designed for aviation use. They can expand as conditions change, filling gaps and preventing dangerous leaks. They flex slightly to fill gaps and are often used at connection points where hoses or tubing connect to a port to prevent fluid leaks. They provide a better dynamic performance than MS28775 o-rings with excellent resistance to petroleum-based products, hydraulic fluids, most silicone fluids and fuels. They can be used with MIL-H-5606 Fluid, Aircraft Hydraulic Fluid.

HM series grease seals have been a trusted solution amongst engineers for decades. These seals divert contamination away from critical bearings and were developed to withstand a grease purge when the lip is pointing toward the air side.

As their name indicates, SKF axial shaft seals were designed to seal axially against a counterface perpendicular to the shaft or pin. Different series include:

SKF axial clamp seals are produced in two different designs. Axial clamp seals of the CT1 design have a flat face sealing lip and are held in position by a screw-type clamp. The maximum permissible axial displacement (operating interference) with respect to the counterface is +2,4 mm. Those of the CT4 design are extra wide and have a double clamp. The maximum operating interference is +4,8 mm. The sealing lip is flat as for the CT1 design.

CR SEALS power tranmission seals (formerly Chicago Rawhide) are included as an SKF brand  in the company's portfolio for radial and axial shaft sealing solutions in power transmission applications. CR Seals provide superior reliability and performance by retaining lubricants, excluding contaminants, and maintaining seal integrity under pressure. Both radial and axial shaft seals are offered in different series for oil and grease sealing applications. Please refer to Product Description for additional information.

Aircraft engine  parts are subject to changes from time to time. Some parts may be no longer available or replaced by others with different part numbers. Listed BRP-ROTAX® engine parts do not imply their current availability or suitability for your engine application. Always consult the most recent Illustrated Part Catalogs (IPCs) or other documentation available from the manufacturer for the correct part number before ordering.

When it comes to selecting Buna (NBR) vs. Flurocarbon (Viton®)  for sealing applications, the selected material should be selected on the basis of the intended application. Viton and Buna are two durable, elastomer materials and they are both commonly used in sealing applications for O-rings and gaskets.

CRseal catalog

Elastomer materials suitable for certain sealing situations are referred to by their abbreviation according to DIN ISO 1629 and include:

Flurocarbon rubber o-rings are often used in place of those made by Nitrile rubber (NBR) also known as Buna-N, presently the seal industry’s most widely used elastometer. When it comes to selecting Buna (NBR) vs. Flurocarbon (Viton®)  for sealing applications, the selected material should be selected on the basis of the intended application. Viton and Buna are two durable, elastomer materials and they are both commonly used in sealing applications for O-rings and gaskets.