Overview
Technical Parameter
This product is made of high-quality low-carbon steel plate as the matrix, with a porous bronze layer sintered in the middle, and a mixture mainly made of polytetrafluoroethylene (PTFE) rolled on the surface. Due to the lack of lead, the lubrication conditions of the bearings are cleaner and meet environmental requirements.
| Material | Carbon steel/Steel+Copper powder/Rhonze+(PTFE+Pb+Filler/Miller) |
| Applications | The product is mainly used in medium and high pressure gear oil pumps, plunger pumps, vane pumps, etc |
| Maximum bearing pressure P (dry friction) | Static Load 250N/mm² |
| Dynamic 140N/mm² | |
| Swing 60N/mm² | |
| Maximum linear velocity V | Dry Friction 2.5m/s |
| Oil Lubrication ＞5m/s | |
| Maximum PV value | Dry Friction 1.0N/mm²·m/s |
| Oil Lubrication 10N/mm²·m/s | |
| Coefficient of friction u | Dry Friction 0.08~0.25 |
| Oil Lubrication 0.02~0.08 | |
| Matching shaft diameter | Hardness HB ＞220 |
| Roughness Ra 0.4~1.25 | |
| Working temperature | -200~+280℃ |
| Thermal conductivity | 40W/mk |
| Linear expansion coefficient (axial) | 11×10-6/K |
| External surface coating | Copper or tin |