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The ceramic ball has the characteristics of low density, high hardness, low friction coefficient, magnetoelectric insulation, wear resistance, self-lubrication and good rigidity. Compared with ordinary stainless steel bearings and bearing steel bearings, the speed of mixed ceramic ball bearings is increased to 1.5 times, the service life is increased to 2 to 3 times, and it can adapt to higher service temperature. No grease can be added in operation to effectively avoid premature damage caused by grease drying in ordinary bearings.
| Ring | Ball | Cage | Usage temperature | Corrosion resistance | Remarks |
|---|---|---|---|---|---|
| SUJ2 | ZrO2/Si3N4 | PA66/PP | 90℃ | Not recommended | According to different use environment, can provide different solutions for customers; Products with a large inventory , welcome your consultation and purchase |
| SUJ2 | ZrO2/Si3N4 | PTFE/PEEK/SUJ2 | 250℃ | Not recommended | |
| SUS440C | ZrO2/Si3N4 | PA66/PP | 90℃ | Good | |
| SUS440C | ZrO2/Si3N4 | PTFE/PEEK/SUS440C | 250℃ | Good | |
| SUS304 | ZrO2/Si3N4 | PA/PP/PTFE/PEEK/S304 | 250℃ | Excellent | |
| SUS316L | ZrO2/Si3N4 | PA/PP/PTFE/PEEK/S316L | 250℃ | Excellent |
Deep groove ball bearing View size》 
Angular Contact Bearing View size》 
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Outer Spherical Bearing View size》 
Full ball bearings View size》 | Technical data | Unit | GCrl5 | 9Crl8 | Si3N4 | ZrO2 |
| ρ Density | g／cm³ | 7.8 | 7.9 | 3.2 | 6 |
| α Coefficient of expansion | 10-6/℃ | 11 | 17 | 3.2 | 10.5 |
| IE modulus of elastcity | Gpa | 208 | 200 | 320 | 210 |
| μ Poisson ratio | 0.3 | 0.3 | 0.26 | 0.3 | |
| HV Hardness | Kg／mm | 600 | 700 | 1700~2700 | 1300~1500 |
| Kc Impact strength | W/mk | 20 | 25 | 7 | 11 |
| Compressive strength | Mpa | 2400 | 2600 | 3500 | 2000 |
| λ Thermal conductivity | mm2/m | 30-40 | 15 | 3.5 | 3.5 |
| Ω Specific resistivity | J/KgK | 1 | 0.75 | 1018 | 1015 |
| Specific heat | .℃ | 450 | 450 | 800 | 800 |
| Max temperature | 120 | 150 | 1000 | 800 | |
| Anti—corrossion | None | Weak | Strong | Strong | |
| NO.of stress circle(50%destroy) | 10*106 | 10*106 | 50*106 | 50*106 | |
| Destroy model | Peeling off | Peeling off | Peeling off | Peeling off/Fracture | |
| Anti—magnetism | Have | Have | None | None | |
| Dimension stability | Poor | Have | Good | Good | |
| Insulate properties | No insulation | No insulation | Good | Good |
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