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

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

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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 : 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℃

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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 .


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rod end bearing

      

plain bearing bush

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

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

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