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Full Complement Balls Ceramic Plain Bearings Si3N4 For High Speed Circumgyration

Categories Ceramic Plain Bearings
Brand Name: TOB Ceramic Bearings
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: Si3N4
Density: 3.2 g/cm3
Material of Rings & Balls: Full Si3N4 ceramic material
HV Hardness: 1700 HRC
Coefficient of expansion: 3.20 10^-6/℃
The highest temperature: 1000℃
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    Full Complement Balls Ceramic Plain Bearings Si3N4 For High Speed Circumgyration


    Full Complement Balls Of Si3N4 Ceramic Bearings, Full Ceramic Bearings


    Full Ceramic Bearings of full complement balls of Si3N4 material has an add-ball gap on its side. Because using no cage design, Full Complement Balls Of Si3N4 Ceramic Bearings is able to install more ceramic balls than the standard construction, so the heavier radial load ability could be increased more. In addition, to avoid the limited of the cage material, Full Complement Balls Of Si3N4 Ceramic Bearings has more corrosion resistance and higher temperature application than the full ceramic bearing of ceramic cage. This series of Full Complement Balls Of Si3N4 Ceramic Bearings is not for high-speed circumgyration, so the side with gap shouldn’t be installed on enduring axial load side. As there are add-balls gaps in the inner and outer rings, Full Complement Balls Of Si3N4 Ceramic Bearings couldn’t be used in more axial load application. The highest temperature of recommendation is 1000℃.


    Comparison of bearing material technical data
    Technical dataunitGCr159Cr18Si3N4AL203ZrO2
    Densityg/cm³7.87.93.23.956
    a Coefficient of expansion10^-6/℃11173.29.110.5
    E modulus of elasticityGpa208200320380210
    μ Poisson ratio 0.30.30.260.270.3
    HV Hardness 800700170018001300
    δ Flexural strengthMpa240026009002201000
    δ Compressive StrengthMPa  200015003500
    Kc Impact strengthNm/cm²202573.511
    λ Thermal conductivityW/mk30-40153.5252.5
    Ω Specific resistivitymm²/m10.7510^1810^810^5
    Specific heatJ/KgK450450800880400
    Application temperature12015010001850800
    Anti-corrossion NopoorGoodGoodGood
    Cycle stress 10*10^610*10^650*10^630*10^650*10^6
    Destroy model peelpeelpeelfracturepeel/fracture
    Anti-magnetism YesYesNoNoNo
    Dimension stability badpoorGoodGoodGood
    Insulate properties No insulationNo insulationGoodGoodGood

    Basic properties of staple engineer plastic
    MaterialHDPEPPPOMPA66PVDFPPSPTFEPEEK
    Long-time working temp.90100110100150230260280
    Densityg/cm30.911.421.141.771.352.181.32
    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)2.42.253.73.6-58 2.13.2-3.3
    Volume resisrivity (Ω·cm)>10^15>10^24>10^1410^1310^12>10^1310^1410^13
    flammability UL94++-(+)(+)-++
    Anti-weathering------+-
    Note: + =resistant; (+) =partly resistant; - =non-resistant


    China Full Complement Balls Ceramic Plain Bearings Si3N4 For High Speed Circumgyration factory
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