Comparison of the material properties of bearing grade silicon nitride and bearing steel 100Cr6
| Material properties | Bearing grade
silicone nitride |
Bearing
steel |
| Mechanical properties | ||
| Density [g/cm3] | 3,2 | 7,9 |
| Hardness | 1 600 HV10 | 700 HV10 |
| Modulus of elasticity [kN/mm2] | 310 | 210 |
| Thermal expansion [10-6/K] | 3 | 12 |
| Electrical properties (at 1 MHz) | ||
| Electrical resistivity [Ωm] | 1012 (Insulator) |
0,4 × 10-6 (Conductor) |
| Dielectric strength [kV/mm] | 15
|
–
|
| Relative dielectric constant | 8 | –
|
