High Temperature 3.2g/Cm3 Si3N4 Full Ceramic Bearings

Brand Name:OEM
Certification:ISO 16949
Minimum Order Quantity:Negotiable
Delivery Time:10-15 working days
Payment Terms:L/C, D/A, D/P, T/T, Western Union, MoneyGram
Place of Origin:CHINA
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High Temperature 3.2g/Cm3 Si3N4 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 High Temperature 3.2g/Cm3  Si3N4 Full Ceramic Bearings supplier

High Temperature 3.2g/Cm3 Si3N4 Full Ceramic Bearings

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