SF-1W is a new type lead free bushing which is developed for the aim of increasing demands on environmental protection. Besides its wide application on general machines, SF-1 is particularly suitable for food machine, pharmaceutical machine, tobacco machi
| Grade | SF-1W | |
| 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 | 2.5 |
| Oil lubrication m/s | >5 | |
| PVvalue limit | Dry friction N/mm 2 · m/s | 1.0 |
| Oil lubrication N/mm 2 · m/s | 10 | |
| Friction coefμ | Dry friction) | 0.08~0.25 |
| 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 | |
In addition to being widely used in general general machinery, this product is especially suitable for food machinery, pharmaceutical machinery, and tobacco machinery. The lead-free effect meets European environmental protection requirements.