Overview
Technical Parameter
This material is developed based on the specific process conditions of high PV value for hydraulic oil pumps. It has a low coefficient of friction and excellent wear resistance, and can be used under dry conditions. The product is mainly used in medium and high pressure gear oil pumps, plunger pumps, vane pumps, etc.
| Material | ronze+(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 |