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YOU ARE BUYING on a quality oil seal
Note: Listing is for one item of listing title part-number only |
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* * * (Note Picture maybe illustration only, parts shipped with be correct as per above details)* * *
* * * (Note Picture maybe illustration only, parts shipped with be correct as per above details)* * *
FITCO OIL SEALS ARE PRODUCED FOR INDUSTRIAL, AUTOMOTIVE AND AGRICULTURAL APPLICATION, THEY ARE IN SINGLE LIP OR DOUBLE LIP, WITH METAL INSERTED & METAL COVERED.
Examples of Improper & Correct Installation methods.
Improper method | Correct method |
* * * (Note Picture maybe illustration only, parts shipped with be correct as per above details)* * *
Seal Materials detail
| Material | Color | Temperature Limits | Information |
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HPU
Polyurethane
Also referred to as:
Urethane, HPU, PUR | Red
(Also could be Natural Milky White or Honey Colored) | -22 to 230oF
-30 to 110oC | Use in: Hydraulic cylinders as rod seals and piston seals. This material is most commonly used as hydraulic u-cups, rod wipers and packings.
Description: This is a high performance material with improved resistance to hot water (up to 200°F) makes it ideally suited for mining applications where water based hydraulic fluids are used. Can be used for pressures to 6000 psi. It is excellent in oil based hydraulic fluids. Great abrasion resistance. Resistant to most oils, fuels, gases. Can be used successfully as a drive belt of various shapes.
Characteristics: Plastic-like. Shiny surface finish. Difficult to stretch. | NBR
Nitrile Rubber
Also referred to as:
NBR, Buna-N, Buna | Black | -22 to 210oF
-30 to 100oC | Use in: Pneumatic seals, O-Rings, oil seal lips, gaskets, washer and low pressure hydraulic seals. Can be used with a back-up ring in higher pressure applications. This is the most popular o-ring material.
Description: General purpose elastomer for use as seal energizer or low pressure applications such as hydraulics and pneumatics. Resistant to oils, hydraulic fluids, water fuels, gases. Not suited for use in brake fluids. Good abrasion resistance. Good resistance to compression set. High tensile strength.
Characteristics: Rubber-like elastomer. Dull, matte finish. Some NBR o-rings have a very shiny surface. | HNB
Highly Saturated
Nitrile Rubber
Also referred to as:
HNBR, Hydrogenated Nitrile, Hydrogenated NBR, Hydrogenated Buna-N | Black | -13 to 302oF
-25 to 150oC | Use in: Seal and gasket application requiring additional resistance to chemicals and slightly higher temperatures than can be handled with NBR. O-Rings, washers, rod and piston seals, back-up rings, gaskets.
Description: HNBR is achieved by hydrogenated NBR. Greatly improved wear and extrusion resistance over standard NBR. Good chemical compatibility and can be used with oils which have aggressive additives. Has an extended high temperature range.
Characteristics: Rubber-like elastomer. Dull finish. | VIT
Fluoroelastomer-
VitonR
Also referred to as:
VIT, VitonR, FKM, Fluorocarbon | Brown
(Also could be Black, Green - molded o-rings) | -4 to 392oF
-20 to 200oC | Use in: Tough sealing applications requiring extreme chemical resistance. O-Rings. Hydraulic seals. Pneumatic seals.
Description: An excellent elastomer for use in high temperature applications. Also exhibits excellent chemical resistance for use in harsh environments such as phosphate esters. Widely used in applications dealing with extreme temperature and/or extreme chemicals. It is suitable to use with all chemicals (exception - Skydrol, certain esters and ethers) makes it a popular elastomer in chemical processing, paper / pulp mills, various chemical, acid and solvent applications.
Characteristics: Rubber-like elastomer. Noticeably heavier than NBR. Dull, non-glossy finish. Smells like cinnamon. | EPD
EPDM Rubber
Also referred to as:
EPD, EPR, EP, Ethylene Propylene | Black | -49 to 300oF
-45 to 150oC | Use in: Sealing lips of special oil seals, u-cups, wiper rings, o-rings, gaskets, washers, rollers.
Description: For use in high temperature water, steam and brake fluids. This elastomer must not come in contact with mineral oils or grease. It is used in applications that deal with acids, weak alkalis. EPD is sometimes and acceptable FDA material.
Characteristics: Rubber-like elastomer. Strong rubber smell. | SIL
Silicone Rubber
Also referred to as:
SIL, Silicone, Silastic | Blue | -75 to 392oF
-60 to 200oC | Use in: O-rings, special low pressure seals, gaskets.
Description: An excellent material generally used for static seals with exce lent low and high temperature stability and good resistance to aging. Generally not suited for dynamic applications due to poor tensile strength and abrasion resistance. Does exhibit excellent resistance to extreme temperature and is an acceptable FDA material. Typical use for silicone in dry heat applications and food processing applications.
Characteristics: Very springy like rubber-type material. |
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sometimes white | | Orange |
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TFV
Virgin PTFE
Also referred to as:
PTFER, Virgin PTFER, PTFE, TFE, TFV, Polytetrafluoroethylene | White | -328 to 500oF
-200 to 260oC | Use in: Packings, gaskets, seals, washers, spacers, insulators, wheels, rollers, bearings, guide rings.
Description: An extremely low friction material which remains stable at both low and high temperatures. The chemical resistance of this material is outstanding. Can be used in applications with extreme temperatures, extreme pressures and extreme chemicals. Since PTFER TFV has a tendency to cold flow and has no memory. It can be filled or mixed with glass, bronze, and nickel to enhance its properties.
Characteristics: Semi-rigid plastic material. Most of the time it is finished by machining. | TFG
PTFE/Glass
Also referred to as:
TFG, Glass-filled PTFER, Glass-filled PTFE | Off-White
(Appears to have small fibers contained.) | -328 to 500oF
-200 to 260oC | Use in: Wear parts requiring low friction and good wear resistance and high pressure resistance.
Description: Similar to TFV or Virgin PTFE with significantly improved wear resistance and heat transfer due to glass filler. Excellent for dynamic applications and for higher pressures.
Characteristics: Semi-rigid plastic material. Most of the time it is finished by machining. | TFB
PTFE/Bronze
Also referred to as:
TFB, Bronze-filled PTFER or Bronze-filled PTFE | Metallic Tan or Light Brown | -328 to 500oF
-200 to 260oC | Use in: Wear parts in hydraulic cylinders requiring load bearing along with low friction guiding parts, sealing rings.
Description: Similar to PTFE / Glass but with superior wear and extrusion resistance due to bronze filler. Excellent for dynamic applications and pressures to 6000 psi.
Characteristics: Semi-rigid plastic material. Most of the time it is finished by machining. | TFN
PTFE/Nickel
Also referred to as:
TFN, Nickel-filled PTFER, Nickel-filled PTFE | Metallic Grey or Light Grey | -328 to 500oF
-200 to 260oC | Use in: Wear parts in hydraulic cylinders requiring load bearing along with low friction guiding parts, sealing rings.
Description: Similar to PTFE / Glass or PTFE / Bronze but with superior chemical, wear and extrusion resistance due to Nickel filler. Excellent for dynamic applications and pressures to 6000 psi.
Characteristics: Semi-rigid plastic material. Most of the time it is finished by machining. | POM
Polyoxymethylene-
DelrinR
Also referred to as:
POM | White | -58 to 210oF
-50 to 110oC | Use in: Wear rings, guide rings, piston and rod bearing rings, bushings, spacers, washers.
Description: A high strength engineering plastic suitable for bearings, bushings and guide bands. Physical properties achieved are almost like cold-rolled steel. Low moisture absorption. Excellent as a hydraulic component in water based fluids.
Characteristics: Rigid plastic. Most of the time it is finished by machining. | Black | UHM
PTFE-PRO G
Also referred to as:
UHM | Translucent
White /
Pearl | -450 to 180oF
-268 to 82oC | Use in: Suitable for abrasive media. Recommended for long wear life under severe conditions.
Description: Extremely tough, long wearing, but limited heat and chemicl resistance. Particulary suitable for abrasive media.
Characteristics: Meets FDA requirements.
Coef. Friction: .11 | TFR
Rulon J
Propretary Filled TFE
Also referred to as:
TFR | Brown | -450 to 400oF
-268 to 205oC | Use in: Rcommended for moderte to high speed dynamic service running against soft metals.
Description: Proprietary plastic reinforced (filled) PTFE.
Characteristics: Superior heat and wear resistance. Non-abrasive.
Coef. Friction: .15 | TFT
Teal-Lon
Also referred to as:
TFT | Teal | -450 to 400oF
-268 to 205oC | Description: Modified PTFE with similar properties to PTFE-PRO 01 (Virgin PTFE) material but with substantially improved wear resistance. Replaces popular blue/green materials used in industrial applications.
Coef. Friction: .09 | ALU
Aluminum
Also referred to as:
ALU, Aluminum alloy | Silver Metallic
Very shiny when machined | -58 to 1000oF*
-50 to 500oC*
| Use in: Crush washers. High temperature spacers and rings. Used for the outer casing and the inner retainer ring on rubber lipped oil seals requiring a metal component to hold the seal in a housing. For seals in gear boxes, power transmission equipment, shaft housings, chemical equipment, vehicle parts and shaft components.
Description: Alloy 6061 Aluminum is an extremely versatile alloy which combines good formability, high corrosion resistance, and medium strength. Yield strength is 40 ksi. Hardness is 95 Brinell. Melting range is 1080° to 1205°F. Can be used as oil seal insert or casing up to 15 PSI. For higher pressure rotary shaft seals, ask your EPM Seal Specialist.
Characteristics: Soft, multi-functional metal. Finished by machining. |
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