Home ProductsPlain Bush Bearing

Si3N4 Full Ceramic Bearings , Cage Was Made By PTFE , GFRPA66-25 , PEEK , PI , Phonemic Textiles Tube , etc .

Si3N4 Full Ceramic Bearings , Cage Was Made By PTFE , GFRPA66-25 , PEEK , PI , Phonemic Textiles Tube , etc .

    • Si3N4 Full Ceramic Bearings , Cage Was Made By PTFE , GFRPA66-25 , PEEK , PI , Phonemic Textiles Tube , etc .
    • Si3N4 Full Ceramic Bearings , Cage Was Made By PTFE , GFRPA66-25 , PEEK , PI , Phonemic Textiles Tube , etc .
    • Si3N4 Full Ceramic Bearings , Cage Was Made By PTFE , GFRPA66-25 , PEEK , PI , Phonemic Textiles Tube , etc .
  • Si3N4 Full Ceramic Bearings , Cage Was Made By PTFE , GFRPA66-25 , PEEK , PI , Phonemic Textiles Tube , etc .

    Product Details:

    Place of Origin: China
    Brand Name: TOB Ceramic Bearings
    Certification: ISO 16949

    Payment & Shipping Terms:

    Minimum Order Quantity: negotiated
    Price: negotiated
    Packaging Details: Cartons or Pallets
    Delivery Time: negotiated
    Payment Terms: T/T
    Supply Ability: negotiated
    Detailed Product Description
    Material: Si3N4 Ceramic Material Density: 3.2 G/cm3
    Material Of Rings & Balls: Full Si3N4 Ceramic Material Almost Material Of Cage: PTFE
    Other Material Of Cage: GFRPA66-25, PEEK, PI, Phonemic Textiles Tube ,etc. Application Temperature: 1000℃

     

    Si3N4 Ceramic Bearings, Full Ceramic Bearings

     

    Full ceramic bearing made with Si3N4 have some better performance than ZrO2, the rings and balls made by full ceramic material:Si3N4, as a standard contracture, the cage made by PTFE, generally we also could make the cage with GFRPA66-25,PEEK,PI, Phonemic Textiles Tube ,etc. Compares than the material of ZrO2, The SiN4 ceramics bearings could endure heavier load and could be used in higher temperature environment. Also we could offer precision ceramic bearing which generally used in high-speed and high-rigidity spindle. The manufactured clearance could be P4 to UP grade.

     

    Comparison of bearing material technical data
    Technical data unit GCr15 9Cr18 Si3N4 AL203 ZrO2
    Density g/cm³ 7.8 7.9 3.2 3.95 6
    a Coefficient of expansion 10^-6/℃ 11 17 3.2 9.1 10.5
    E modulus of elasticity Gpa 208 200 320 380 210
    μ Poisson ratio   0.3 0.3 0.26 0.27 0.3
    HV Hardness   800 700 1700 1800 1300
    δ Flexural strength Mpa 2400 2600 900 220 1000
    δ Compressive Strength MPa     2000 1500 3500
    Kc Impact strength Nm/cm² 20 25 7 3.5 11
    λ Thermal conductivity W/mk 30-40 15 3.5 25 2.5
    Ω Specific resistivity mm²/m 1 0.75 10^18 10^8 10^5
    Specific heat J/KgK 450 450 800 880 400
    Application temperature 120 150 1000 1850 800
    Anti-corrossion   No poor Good Good Good
    Cycle stress   10*10^6 10*10^6 50*10^6 30*10^6 50*10^6
    Destroy model   peel peel peel fracture peel/fracture
    Anti-magnetism   Yes Yes No No No
    Dimension stability   bad poor Good Good Good
    Insulate properties   No insulation No insulation Good Good Good
                 

     

     

    Basic properties of staple engineer plastic
    Material HDPE PP POM PA66 PVDF PPS PTFE PEEK
    Long-time working temp. 90 100 110 100 150 230 260 280
    Density g/cm3 0.91 1.42 1.14 1.77 1.35 2.18 1.32
    Ball indentation hardness 50 80 170 170 80 190 30  
    Tensile stress 25 30 70 80 50 75 25 95
    Sliding friction coefficient 0.29 0.3 0.34 0.35-0.42 0.3   0.08-0.1 0.3-0.38
    Melted temperature 130 165 175 260 172 280 327 343
    Short-time highest application temperature 90 140 150 170 150 260 260 300
    Coet of Inear expansion (10^-5/K) 13-15 17 10 8 13 5 12 5
    Dielectric constant at 1 Mhz(10^6HZ) 2.4 2.25 3.7 3.6-5 8   2.1 3.2-3.3
    Volume resisrivity (Ω·cm) >10^15 >10^24 >10^14 10^13 10^12 >10^13 10^14 10^13
    flammability UL94 + + - (+) (+) - + +
    Anti-weathering - - - - - - + -
    Note: + =resistant; (+) =partly resistant; - =non-resistant
     

     

    Si3N4 Full Ceramic Bearings , Cage Was Made By PTFE , GFRPA66-25 , PEEK , PI , Phonemic Textiles Tube , etc .

     

    Contact Details
    ZHEJIANG TOP BEARINGS CO., LTD.

    Send your inquiry directly to us (0 / 3000)

    Other Products