SF-DB self-lubricating composite bearing is a sliding bearing formed by rolling the steel plate as the base, sintering spherical bronze powder in the middle, and rolling the mixture of polytetrafluoroethylene (PTFE) on the surface. It has the cha
| Grade | SF-DB | |
| Material | Bronze+Bronze+(PTFE+ Filler) | |
| Load capacity | Static load N/mm2 | 250 |
| Dynamic load N/mm2 | 140 | |
| Oscoillation Load N/mm2 | 60 | |
| Max line speed | Dry friction m/s | 2.5 |
| Oil lubrication m/s | >5 | |
| PVvalue limit | Dry friction N/mm 2 · m/s | 1.8 |
| Oil lubrication N/mm 2 · m/s | 3.6 | |
| Friction coefμ | Dry friction | 0.08~0.20 |
| Oil lubrication | 0.02~0.08 | |
| Mating shaft | Hardness HB | >220 |
| Roughness Ra | 0.4~1.25 | |
| Working temperature°C | -200~+280 | |
| Thermal conductivity W/mk | 60 | |
| Coefficient of linear expansion | 11×10 -6/K | |
| Outside surface Plating | copper/tin | |
Products have been widely used in sliding parts of various machinery, such as printing presses, elevators, textile machines, tobacco machines, fitness equipment, hydraulic trucks, micro motors, solenoid valves, automobiles, motorcycles and agricultural and forestry machinery.