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ZHEJIANG TOP BEARINGS CO., LTD.
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ZrO2 Ceramic Bearings , Full Ceramic Bearings , Cage Was Made By PTFE, GFRPA6 , PEEK, PI, AISI SUS304, SUS316, Cu, etc.

ZHEJIANG TOP BEARINGS CO., LTD.
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ZHEJIANG TOP BEARINGS CO., LTD.
City: Jiaxing
Province/State: Zhejiang
Country/Region: China
Contact Person:Mr Leo Wu

ZrO2 Ceramic Bearings , Full Ceramic Bearings , Cage Was Made By PTFE, GFRPA6 , PEEK, PI, AISI SUS304, SUS316, Cu, etc.

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 : ZrO2
Density : 6.0 g/cm3
Material of Rings & Balls : Full ZrO2 ceramic material
Almost Material of Cage : PTFE
Other material of Cage : GFRPA66-25, PEEK, PI, AISI SUS304, SUS316, Cu, etc.
Application temperature : 800℃
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ZrO2 Ceramic Bearings , Full Ceramic Bearings


ZrO2 Full ceramic bearing have excellence performance as special electrical and magnetism resistance, wear and corrosion resistance, lubrication and maintenance free when working, especially high and low-temperature application etc., could be used in awful environment and specially condition. The rings and balls were made by full ceramic material:ZrO2, as a standard construction, the cage was made by PTFE, generally we also could make the cage with GFRPA66-25, PEEK, PI, AISI SUS304, SUS316, Cu, etc.


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



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