Beijing Zhongxing Shiqiang CERAMIC BEARING Co., Ltd.
Beijing Zhongxing Shiqiang Ceramic Bearing Co.,Ltd
Add to Cart
ZrO2 Races+HIP-Si3N4 Balls Ceramic Bearings 608 With High Precision
Description of Silicon Nitride Ball Bearing 608:
1. HIP-ZrO2 races: 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, so their porosity is declined and their wear resistance, impact resistance and resistance to fatigue contact life are greatly improved.
2. HIP-Si3N4 Balls: Are made of highly purified, submicron silicon nitride powder with an alpha phase of more than 92%, and is processed by HIP (Hot Isostatic Pressure) sintering technology. Compared with GPS sintered silicon nitride material, the porosity, wear resistance, crushing value and fatigue contact life of after HIP sintered sinlicon nitride have been greatly improved.
3. PEEK cage: PEEK material has similar corrosion resistance to ceramic materials, and has a good resistance to radiation, self-lubricating properties, a high degree of wear resistance and other characteristics.
Performance advantaces of material:
| ►Key properties of zirconia |
| ♦ Max Temperature up to 380℃ |
| ♦ High density: 6.09 g/cm3 |
| ♦ Low thermal conductivity |
| ♦ Chemical stability, resistance to acid and alkali corrosion |
| ♦ High fracture toughness KIC:8-11 MPa-m1/2 |
| ♦ Good electric insulation |
| ♦ Better bearing capacity |
| ♦ Wear resistance |
| ♦ High hardness : 1300 HV5 |
| ► 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 |
