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Ceramic Ball
  • zirconia zro2 ceramic bearing balls
  • zirconia zro2 ceramic bearing balls
  • zirconia zro2 ceramic bearing balls
  • zirconia zro2 ceramic bearing balls
  • zirconia zro2 ceramic bearing balls
  • zirconia zro2 ceramic bearing balls
  • zirconia zro2 ceramic bearing balls
  • zirconia zro2 ceramic bearing balls

zirconia zro2 ceramic bearing balls

  • Description:
  • Due to the features of high fracture toughness

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  • Item

    Test Condition

    Unit&Symbol

    Zirconia Ceramics

    The main chemical ingredient

     

     

    ZrO2:95%

    Y2O3:5%

    Bulk Density

     

    g/cm3

    6

    Maximum Use Temperature

     

     

    1300°C

    Water absorption

     

    %

    0

    ROHS Hardness

     

    HRA

    ≥83

    Compressive Strength

    20°C

    Kgf/cm2

    25000

    Fracture Toughness

     

    Map.m3/2

    6-8

    Coefficient of thermal expansion

     

    /°C

    9.5*10-6

    Thermal Shock Resistance

    Tc

    °C

    360

    Volume Resistivity

    20°C

    Ωcm20°C

    ≥10 12

    Due to the features of high fracture toughness,high bending strength,high wear resistance,excellent heat insulating property and proper thermal expansion coefficient that closes to steel's, Zirconia(zro2)ceramic balls are widely employed in ceramic bearing fields.Furthermore,the cost is much lower than silicon nitride.
    Their characterisitics are shown as follows:
    1.Corrosion resistance,which can also be used in acid and alkali situation.
    2.High temperature resistance,whice remain the same strength and hardness when the temperature nearly comes to 550 ℃

    3.Nonmagnetic,Electrical  insulation.which can be used in magnetic field
    4.Zro2 ceramic balls have a low density of 6.05g/cm3.it is approximately 20% lighter than steel ball,whice decrease the centrifugal force on the deep groove,in order to reduce the wear and tear.
    5.Excellent resistance to oxidation and metal erosion,Zro2 ceramic balls also can be used   without lubricate environment
    6.Low friction coefficient and high surface finish.
      Application fields:high precise ceramic bearing,high temperature bearing,vacuum bearing,nonmagnetic bearing,chemical pump,high temperature pump,ceramic valve ball,measure ball,etc.

  • bearing balls size

    Size (inch) Size (mm) Size (inch) Size (mm)

    1.5 1/16 " 1.588

    2 3/32 2.381
    1/8 " 3.175 5/32 " 3.969
    3/16 " 4.763 7/32 " 5.556
    1/4 " 6.35 17/64 " 6.747

    7 9/32 " 7.144
    5/16 " 7.938 11/32 " 8.731
    3/8 " 9.525 13/32 " 10.319
    7/16 " 11.112 29/64 " 11.509
    15/32 " 11.906
    12
    31/64 " 12.303 1/2 " 12.7
    17/32 " 13.494
    14
    9/16 " 14.288 19/32 " 15.081
    5/8 " 15.875 21/32 " 16.669
    11/16 " 17.463 23/32 " 18.256
    3/4 " 19.05 25/32 " 19.844

    20 13/16 " 20.638
    7/8 " 22.225 15/16 " 23.812
    1 " 25.4 1-1/16 " 26.988
    1-1/8 " 28.575 2001/3/16 30.163
    1-1/4 " 31.75 1-3/8 " 34.925

    35 1-1/2 " 38.1
    1-5/8 " 41.275 1-11/16 " 42.863
    1-7/8 " 47.625 2 " 50.8
  • Our Services 

    1. Full technical support from concept design to final product delivery 

    2. On-time delivery with no compromise on quality 

    3. High-quality product making with advanced equipment and techniques 

    4. Large-scale of proudction availabl 

    5. Lower cost (medium-size factory, 3000 square meters), but high-end quality only(the 
    same quality control system as per big factory)  

     6. Any questions to be sent will get response within 24 hours FAQ

  • FAQ

     a) How to prolong service life of bearings? 

    Accurate installation and using,alignment,timely monitor,re lubrication etc.

    b) Reason for bearings failure? 

    Usually is incorrect using method,pollution,improper use of lubricant,damage happened 
    in installation and handing,also including installation error.according to the traces can 
    know the reason why is failure.

    c) How to choose bearings? 

    Analyse mechanical device and use conditions.clear the requiremment of 
    bearings.select type of bearings,select distribution way of bearings.selet dimensions of 
    bearings,select installation method of bearings.

    d) When select bearings specifications,what you need to consider? 

    The precision of the bearings(rotating precision,dimensional tolerances)internal 
    clearance and preload bearing material and heat treatment.structure of cage and material. 

    e) Payment method,packing way,transport method,time of delivery?      T/T,PAYPAL,WESTERN UNION,L/C     Tube,box,carton,pallet,     By sea,by air       3-15days after receipt of payment.

Online Inquiry

Please feel free to give your inquiry in the form below.We will reply you in 24 hours.

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