SF-1P is particularly suitable for bushes in reciprocating motion, and the properties are similar to DD2 type product in foreign country. It is wear resistant, and so can keep the lubricating oil clear after long period of working. Meanwhile it can protec
| Grade | SF-1P | |
| Material | Steel+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 |
| 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 | 40 | |
| Coefficient of linear expansion | 11×10 -6/K | |
| Outside surface Plating | copper/tin | |
The product has been widely used in automobile shock absorbers, motorcycle shock absorbers, various hydraulic cylinders, hydraulic motors, pneumatic components and other fields.