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180℃ PTFE Ball Bearings Corrosion Resisting Plastic Bearings

Categories Plastic Plain Bearings
Brand Name: TOB Plastic Bearing
Certification: ISO 16949
Place of Origin: China
MOQ: negotiated
Price: negotiated
Payment Terms: T/T
Supply Ability: negotiated
Delivery Time: negotiated
Packaging Details: Cartons or Pallets
Material: PTFE Plastic Material
Basic Properties: Anti-corrosion
Density: 2.18 g/cm3
The most highest temperature: PTFE is 180℃
The material of the rings & cage: PVDF or PTFE material
The material of Balls: Glass, Ceramic or Stainless
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    180℃ PTFE Ball Bearings Corrosion Resisting Plastic Bearings

    TFE Corrosion Resisting Plastic Bearings

    As the typical type of fluoroplastic, PTFE have the most excellent anti-corrosion performance, Among them PTFE has the best anti-corrosion performance of all the engineering-plastics known to man,
    PTFE Corrosion Resisting Plastic Bearings could be used in all the Strong Acid and Alkali application, including HF and smoke formation H2SO4 HNO3 or HCL (98% above) etc., and PTFE Corrosion Resisting Plastic Bearings could be used in high temperature application.

    The Density of PTFE plastic bearings is 2.18 g/cm3, Sliding friction coefficient is 0.09-0.10, Short-time highest application temperature is 260℃.

    Generally the rings and cage were made with PTFE or PVDF, Balls were made with glass, ceramic or stainless.

    PTFE could be used in 180℃. But PTFE has very low mechanical strength, easy to be out of shape and have large Dimension change when the temperature rise or reduce. So PTFE Corrosion Resisting Plastic Bearings couldn't be used in heavy load and high-speed occasion.

    Basic properties of staple engineer plastic
    Long-time working temp.90100110100150230260280
    Ball indentation hardness50801701708019030 
    Tensile stress2530708050752595
    Sliding friction coefficient0.290.30.340.35-0.420.3 0.08-0.10.3-0.38
    Melted temperature130165175260172280327343
    Short-time highest application temperature90140150170150260260300
    Coet of Inear expansion (10^-5/K)13-1517108135125
    Dielectric constant at 1 Mhz(10^6HZ) 2.13.2-3.3
    Volume resisrivity (Ω·cm)>10^15>10^24>10^1410^1310^12>10^1310^1410^13
    flammability UL94++-(+)(+)-++
    Note: + =resistant; (+) =partly resistant; - =non-resistant

    Chemical properties of Engineer plastic
    Chemical CompositionMaterial
    Formic acid (10% water)++++--+++
    Ammonia (10% water)-++++(+)+++
    Aether+ ++++++ 
    Bori acid (10% water) ++(+)+++++
    Aminoform+++ --(+)--
    Aeti aid 100%(+)-+ --++-
    Aceti aid (10% water)+++ -(+)+++
    HF  + --++(+)
    Formaldehyde aqu (30% water) ++++-+++
    Glycerin+ + +++++
    Iodine, Glycol+ +(+)-(+)++(+)
    K2Cr2O7 (10% water)  +++-+++
    KMnO4 (1% water)++++-(+)++(+)
    2-Hydronyprpionic 10%+ ++--++-
    2-Hydronyprpionic 90%+++++(+)+++
    Nad (10% water)+++++++++
    NaNO3 (10% water)+ +++++++
    NaOH (50% water) ++++-+++
    NaOH (5% water)  +++-++ 
    Oxalic (10% water)++++(+)(+)+++
    Tetracarp+ ++(+)+--(+)
    H3PO3 100% ++ -  ++
    H3PO4 (10% water) +++--+ +
    NHO3 (2% water)++++--+++
    HCL (2% water)+++(+)--+++
    H2SO4 98% -+ --+(+)-
    Soap liquid  ++++++ 
    Alkaliliquid (10% water)  +++++++
    Water, cold+++++++++
    Water, hot +++(+)-+++
    H2O2 (30% water) (+)++--+++
    H2O2 (0.5% water)+ ++-(+)+++
    Asphalt+ + (+)+(+)(+) 
    Note: + =resistant; (+) =partly resistant; - =non-resistant

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