BR1 series products
BR1P reciprocating bushing
BR1P reciprocating bearing is a new formula product designed on the basis of BR1 material according to the special working conditions of reciprocating motion, and its performance is similar to that of DD2 abroad. The product has the advantages of strong self-lubricating ability, good wear resistance and clear oil film under the condition of oil cut-off. It can better protect the surface of the grinding shaft from wear.
At present, the product has been widely used in automotive shock absorbers, motorcycle shock absorbers, various hydraulic cylinders, hydraulic motors, pneumatic components and other fields.
Metallographic analysis
1. PTFE and copper mixture
2. Spherical bronze powder
3. Steel back
4. Electroplated coating: tin coating or copper coating
Product characteristics&Application area
Product characteristics
- 1. The utility model has the advantages of strong lubricating capacity, good wear resistance and clear protective oil film under the condition of oil cut-off;
- 2. It can better protect the shaft surface from wear;
- 3. It is suitable for reciprocating motion;
- 4. No oil lubrication or little oil lubrication, applicable to occasions where oil can not be added or it is difficult to add oil, and can be used without maintenance or with little maintenance;
Application area
- At present, it has been widely used in automobile shock absorbers, motorcycle shock absorbers, various hydraulic cylinders, hydraulic motors, pneumatic components and other fields
| performance index | relevant data | |
|---|---|---|
| Maximum bearing pressure P | Static load | 250N/mm2 |
| Dynamic load | 140N/mm2 | |
| Maximum linear speed V | Dry friction | 2.5m/s |
| Oil lubrication | 5m/s | |
| Maximum PV value | Dry friction | 3.6N/mm2·m/s |
| Oil lubrication | 50N/mm2·m/s | |
| Friction coefficient μ | Dry friction | 0.08~0.20 |
| Oil lubrication | 0.02~0.07 | |
| Working temperature | -200℃~+280℃ | |
| Thermal conductivity | 40w/m·k | |
| Coefficient of linear expansion | 12×10-6/k | |
