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High Precision Mini Size ZrO2 Si3N4 Ceramic Ball Bearings

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    Buy cheap High Precision Mini Size ZrO2 Si3N4 Ceramic Ball Bearings from wholesalers
     
    Buy cheap High Precision Mini Size ZrO2 Si3N4 Ceramic Ball Bearings from wholesalers
    • Buy cheap High Precision Mini Size ZrO2 Si3N4 Ceramic Ball Bearings from wholesalers
    • Buy cheap High Precision Mini Size ZrO2 Si3N4 Ceramic Ball Bearings from wholesalers

    High Precision Mini Size ZrO2 Si3N4 Ceramic Ball Bearings

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    Brand Name : OEM
    Certification : ISO 16949
    Price : Negotiation
    Payment Terms : L/C, D/A, D/P, T/T, Western Union, MoneyGram
    Supply Ability : 1000000 Piece/ per Month
    Delivery Time : 10-15 working days
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    High Precision Mini Size ZrO2 Si3N4 Ceramic Ball Bearings


    High Precision And Mini-size Ceramic Bearings


    With widely using of the ceramic bearings in all kinds of industries, they have the different requirements of frame, category, material, and precision of the ceramic bearings. During the production, the requirements need to be improved by a long experiment, but on the small type (inner diameter less than 10mm), the precision of product is hard to meet the requirement of customers by the routine processing craft.

    According to above problem, we have an adjustment of the manufacturing machine and processing craft. We use a new processing craft aiming at the ceramic bearing whose inner diameter less than 10mm, and purchase the new processing machine, which insure the production of the high precision and mini-size ceramic bearing from the hardware.


    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


    Quality High Precision Mini Size ZrO2 Si3N4 Ceramic Ball Bearings for sale
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