BR1 series products
BR1T special bushing for gear pump
BR1T special bearing for gear oil pump，based on the structure of BR1 material, it is a special formula product designed and launched according to the working conditions of high PV value of gear oil pump.
The product has special advantages of anti fatigue impact. Applicable oil pump pressure: 16-25Mpa, linear speed: 3.5-5m/s. PV value can reach 120N/mm² M/s, it is a good choice for all kinds of gear oil pumps, piston pumps and vane pumps.
Metallographic analysis
1. PTFE, lead and other filling mixtures
2. Spherical bronze powder
3. Steel back
4. Electroplated coating: copper coating/tin coating
Product characteristics&Application area
Product characteristics
- 1. The friction coefficient is small and stable under the condition of oil lubrication;
- 2. Good wear resistance and low friction coefficient;
- 3. Under the condition of fluid lubrication, PV value can reach 120N/mm² m/s；
Application area
- The product has been widely used in various gear oil pumps, plunger pumps, vane pumps and other occasions, especially for medium and high pressure gear pumps under fluid lubrication or boundary lubrication
| performance index | relevant data | |
|---|---|---|
| Maximum bearing pressure P | Quiet load | 250N/mm2 |
| Move load | 140N/mm2 | |
| Maximum linear speed V | Dry friction | 2m/s |
| Oil lubrication | 10m/s | |
| Maximum PV value | Dry friction | 3.6N/mm2·m/s |
| Oil lubrication | 60N/mm2·m/s | |
| Friction coefficient μ | Dry friction | 0.08~0.20 |
| Oil lubrication | 0.01~0.05 | |
| Working temperature | -200℃~+280℃ | |
| Thermal conductivity | 40w/m·k | |
| Coefficient of linear expansion | 12×10-6/k | |
