Customized Non-Standard 608 Ceramic Bearings In Material Of Si3N4/ZrO2/SSiC
Description of Non-standard 608 Ceramic Bearing:
1. HIP-Si3N4 Races and Balls: Are made of highly purified, submicron silicon nitride powder with an alpha phase of more than 92%, and is processed by GPS (Gas Pressure) sintering and HIP (Hot Isostatic Pressure) sintering technology.
2. HIP-ZrO2 Races and Balls: Are made by highly purified, sub-micron and after Y2O3-TZP stabled zirconia powder material, are processed by AP (Atmospheric Pressure) sintering and HIP (Hot Isostatic Pressure) sintering technology.
3. Cage and seals: our company can supply PEEK cage, cage, Nylon cage and other materials you need. The material of seals can be chosen among PEEK, , Rubber and others you want.
Key properties of ceramic material:
►Key properties of zirconia |
♦High hardness : 1300 HV5 |
♦ High density: 6.09 g/cm3 |
♦ Max Temperature up to 380℃ |
♦ Chemical stability, resistance to acid and alkali corrosion |
♦ High fracture toughness KIC:8-11 MPa-m1/2 and good wear resistance |
♦ Low thermal conductivity |
♦ Better bearing capacity |
♦ Good electric insulation and wear resistance |
► Key properties of hot isostatic sintered silicon nitride |
♦ Max temperature to 1000℃ |
♦ High strength over a wide temperature range |
♦ High fracture toughness: 6.1 MPa-m1/2 |
♦ High hardness: 1580 HV5 |
♦ Outstanding wear resistance, both impingement and frictional modes |
♦ Good thermal shock resistance |
♦ Good chemical stability,resistance to acid and alkali corrosion |
♦ Good electric insulation |
►Key properties of pressureless sintered silicon carbide |
♦ Max Temperature up to 1650℃ |
♦ Low density:3.15-3.18 g/cm3 |
♦ High strength |
♦ Low thermal expansion : 4.0 (10-6/℃) |
♦ High thermal conductivity:120 W/m°K |
♦ High hardness:2800 HV5 |
♦ High elastic modulus: 410GPa |
♦ Superior chemical stability,resistance to acid and alkali corrosion (incld. hydrofluoric acid) |