Corrosion Resistance Ceramic Plain Bearings ZrO2 Material Ceramic Cage
Brand Name:TOP Ceramic Bearings
Certification:ISO 16949
Minimum Order Quantity:negotiated
Delivery Time:negotiated
Payment Terms:T/T, L/C
Place of Origin:China
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Jiaxing Zhejiang China
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Room 1008, TongLe Business Mansion, JiaXing 314033, ZheJiang, China
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Corrosion Resistance Ceramic Plain Bearings ZrO2 Material Ceramic Cage
Ceramic Cage , All-ceramic Bearings
Ceramic cage has excellence performance as wear and corrosion resistance, high strength, lubrication and maintenance free when working. Adopting the ceramic cage, Ceramic bearing can be used in the most inclemency environments as corrosive, low temperature, high vacuum. The material of almost ceramic cage is ZrO2.
Ceramic cage has excellence performance as wear and corrosion resistance, high strength, lubrication and maintenance free when working. Adopting the ceramic cage, Ceramic bearing can be used in the most inclemency environments as corrosive, low temperature, high vacuum. The material of almost ceramic cage is ZrO2.
| 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 | ||||||||
Corrosion Resistance Ceramic Plain Bearings ZrO2 Material Ceramic Cage
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