SF-1T bushing is specialy designed for gear pumps. It is made on the basis of SF-1, suits for working condition of high PV value of gear pump. It has good performance of anti-fatigue and anti-punching.It shows the benefit of low friction coefficient,wear
| Grade | SF-1T | |
| Material | Carbon steel + copper powder + (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 | |
The products are mainly used in medium and high pressure gear oil pumps, plunger pumps, vane pumps and other fields.