Introduction to oil seals-1.Material

  • Metal Casing:It functions as frame work and enhances the strength of the body.
  • Spring:Garter spring forces the lips in contact with axial plane under constant compression force

    Unless specified otherwise, our company use following materials for all metal cases and garter springs.

    Use Metal Case Garter Spring
    General Carbon Steel Sheet AISI#1008-1010 Carbon Steel Wire AISI-1070
    Resistance to water; chemical and corrosion Stainless Steel Sheet (AISI-304) Stainless Steel Wire (AISI-304)
  • Rubber:Rubber material should be inclusion-free, non- contaminative to lubricants and non-corrosive to metal.
    Rubber materials and properties comparison
    Compound compatibility chart
    MATERIAL ATTRIBUTES NBR SI FKM ACM
    HIGH TEMP REST. (°C) 120 232 205 150
    LOW TEMP REST. (°C) -35 -50 -26 -0
    Durometer 70~90 70~80 70~80 70~80
    Swell Low Medium Low Low
    Abrasion Resistance A D C C
    Rebound B C C C
    Tear B D C C
    Impact Strength B D C D
    Gas Impermeability B D B C
    Tensile Strength B D B D
    Elongation B A D D
    Heat Resistance C A A B
    Cold B A C D
    Weathering C A A B
    Ozone D A A B
    Flame D A A B
    Oil And Fuel resist. B C A B
    Acid B C B C
    Alkaline B D B D
    Water B B B D
    Animal & Vegetable oil A B A A
    Alcohol B B B B
    Aliphatic-Solvent B B B B
    -Aliphatic A D A A
    -Aromatic B D A C
    Oxygenated-Solvent D C D D
    * Note: A=Excellent ; B=Good ; C=Fair ; D=Poor.
  • Enabling material adoption in engineering plastics:

    Nylon resin:Good shock absorbing property, high wear resistant, good thermo-stability, and excellent sliding properties. Usually used on highly mobile parts. Application: power steering seal.

    PU:High in tenacity, good extensibility and non-water-absorbing. High wear resistant and high in impact resistance value. Application: U/ V Packing

    PTFE:White and black are 2 common types. It’s most thermo-stable among engineering plastics. It has excellent anti-corrosive property to chemicals and lowest coefficient of friction value. Common working temperature is -70~270℃. Application: PTFE oil seals are most widely used in chemical plants and machine shops, even OEM orders usually prefer to use this material.

    Introduction to oil seals-2.Shapes and Sizes

    Please contact us for more information. We produce all various sizes and shapes for our customers.

    Introduction to oil seals-3.Appearance

    With excellent production process,no defects like
    scratches,deformations,deterioration……etc. can be found in our products.

    Introduction to oil seals-4.Functionality

    Oil seals should be leak-free and keep grease inside the housing. Hence, prevent rain water and dust goes through the seal.

    Introduction to oil seals-5.Package

    Appropriate packaging is necessary in order to prevent any damages and contamination during shipping and handling.