Categories By Element
Categories By Function
| Catalog No. | SC0909 |
|---|---|
| Material | Ceramic |
| Purity | 97%~99% |
| Density | 3.44 g/cm3 |
Silicon Nitride Bearing is an ideal material for bearing parts. Stanford Advanced Materials (SAM) is a leading supplier of Silicon Nitride Bearings with competitive prices and great delivery time. Feel free to contact us for customized products.
Related Products: Silicon Nitride Rod
Silicon Nitride Bearing is an ideal material for bearings parts. Silicon Nitride Bearings have good wear and corrosion resistance, and great mechanical strength under high temperature. We can supply full ceramic and hybrid bearings products made by Silicon Nitride, Zirconia as well as SiC.
Comparison of ceramic and Steel for bearings
| Si3N4 | ZrO2 | Steel |
Working temperature | 800 C | 800 C | 180 C |
Density | 3.24 g/cm3 | 6 g/cm3 | 7.8 g/cm3 |
Thermal expansion coeff. | 3.4×10-6 | 10.5 | 12.5×10-6 |
Hardness, HV | 1500 | 1300 | About 750 |
Young’s Module | 320 GPa | 210 GPa | 208 GPa |
Corrosion resistance | Good | Good | Poor |
Thermal conductivity | Low | Low | High |
Magnetism | None | None | Yes |
Wear resistance | Excellent | Excellent | Good |
Silicon Nitride Bearings have already been applied in automobiles, rockets high-speed engines, equipment working in a corrosive environment and some performance model cars. Compared with steel, high-performance Silicon Nitride Bearing Balls have better mechanical properties under high temperature and could survive from most the corrosive chemicals. As the price of ceramic materials decreased, Silicon Nitride Bearing could have more applications.
