Material Structure
CuZn25Al6Fe3Mn4
Feature
1. High-strength brass bearing lubricating by oil in oil groove
2. It inherits the traditional functions of tin bronze bearings. Due to the use of high-strength brass, its hardness doubled
3. life of the product doubled compared with the general bronze bushings under low-speed conditions,
4. High load capacity, suits for heavy load application.
Application
1. Stressed joints of excavators
2. Large gearboxes
Technical Parameter
| Material & Bearing Properties | Unit |
| Base material | CuZn25A16Fe3Mn3 |
| Ultimate dynamic load | 100N/mm² |
| Base hardness | HB210-270 |
| Friction Coef. Μ | 0.04-0.16 |
| Max operating temperature | 170℃ |
| Max sliding speed | 1.5m/s |
High-strength brass bushings are engineered to combine the proven performance of traditional tin bronze bearings with enhanced hardness and load-bearing capacity. Lubricated through integrated oil grooves, these bushings provide smooth, reliable operation and significantly extended service life, making them ideal for heavy-duty, low-speed applications.
Enhanced Hardness: High-strength brass doubles the hardness compared with standard bronze bushings.
Extended Service Life: Life expectancy is approximately twice that of conventional bronze bearings under low-speed conditions.
Oil-Lubricated: Integrated oil grooves ensure consistent lubrication and reduced wear.
High Load Capacity: Perfect for applications with heavy stress and demanding loads.
