BR4 series products
BR4E bronze base solid lubricated rolled bushing
BR4E bronze based solid lubrication rolling bearing is made of bronze material as the base and solid lubricant embedded on the surface. As the copper alloy material with high elongation is used as the matrix, it can be made into ultra-thin rolled shaft sleeves, and the ideal filler material is used as the lubricant.
Therefore, the product can be used as wear-resistant shaft sleeve in automobile transmission shaft, and also can be used in other occasions without oil lubrication.
Metallographic analysis
1. Copper base
Product characteristics&Application area
Product characteristics
- 1. Add oil or grease regularly;
- 2. Wear resistance, low friction coefficient;
- 3. High mechanical strength, strong dimensional stability;
- 4. Strong thermal conductivity;
- 5. Wide temperature range：-40℃～+110℃ ；
Application area
- At present, it has been widely used in various automobile transmission shafts as wear-resistant shaft sleeves, and can also be used in other occasions without oil lubrication
| PERFORMANCE INDEX | RELEVANT DATA | |
| Density | 8.3 g/cm3 | |
| Compressive strength | 470N/mm² | |
| Thermal conductivity | 58W/m·K | |
| Coefficient of linear expansion | 18.5×10-6/K | |
| Hardness | 90~120HB | |
| Elongation | 40% | |
| Material name | CuSn8P0.3 | |
