BR1 series products
BR1D hydraulic professional self-lubricating bushing
BR1D hydraulic special bearing is a new material designed on the basis of BR1P and in combination with the working principle of oil cylinder and shock absorber. It is more wear-resistant under oil-free conditions.
In addition to the advantages of BR1P, this product is especially suitable for the occasion of frequent reciprocating large lateral force. Its performance is similar to that of foreign DP4. At present, this product gradually replaces BR1P products, and is applicable to automobile, motorcycle shock absorber, various hydraulic cylinders and other fields.
Metallographic analysis
1. Polytetrafluoroethylene and lipophilic fiber mixture
2. Spherical bronze powder
3. Steel back
4. Electroplated coating: copper coating/tin coating
Product characteristics&Application area
Product characteristics
- 1. The mixture of PTFE and lipophilic fiber can form a good transfer film to protect the grinding shaft during exercise;
- 2. Good wear resistance and low friction coefficient;
- 3. Good running in performance, no shaft seizure;
- 4. It can be used in rotation, swing and reciprocating motion;
- 5. Because it does not contain lead, it can be used in food machinery, medical machinery and other green environmental protection equipment;
- 6. In addition to the characteristics of BR-1P, the product is especially suitable for the occasions with frequent reciprocating movements and large lateral forces, and is suitable for the fields of automobile, motorcycle shock absorber and various hydraulic cylinders;
Application area
- At present, it has been widely used in automobile, motorcycle shock absorber and various hydraulic cylinders.
| performance index | relevant data | |
|---|---|---|
| Maximum bearing pressure P | Quiet load | 250N/mm2 |
| Move 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 | |
