SF-1 is wall wrapped bearing made of triple layer composites material which consists of a steel backing, a sintered porous bronze particles interlayer and calendared with PTFE mixture as surface layer.It is of low friction cofeeicient and has good
| Grade | SF-1 | |
| Material | Copper plate+Copper powder+(PTFE+ filler) | |
| Lode capacity | Static load N/mm2 | 250 |
| Dynamic load N/mm2 | 140 | |
| Oscoillation Load N/mm2 | 60 | |
| Max line speed | Dry frictionm/s | 2.5 |
| Oil lubrication m/s | >5 | |
| PVvalue limit | Dry friction N/mm 2 · m/s | 1.8 |
| Oil lubricationN/mm 2 · m/s | 3.6 | |
| Friction coefμ | Dry friction | 0.08~0.20 |
| Oil lubrication | 0.02~0.12 | |
| Mating shaft | Hardness HB | >220 |
| RoughnessRa | 0.4~1.25 | |
| Working temperature°C | -200~+280 | |
| Thermal conductivityW/mk | 40 | |
| Coefficient of linear expansion | 11×10 -6/K | |
| Outside surface Plating | copper/tin | |
SF-1 is widely applied in various sliding position of different kind of machines, such as textile machines, lift, tobacoo machines, fitness equipment, hydraulic vechicles, antomobiles, agriculture and forest machinese and so on.