Self-Lubricating Graphite Bush Oilless Bushing from China Suppliers - Bronze Bearings Factory with SGS Standards
Product Introduction
SPB Solid Lubricated Bearings are engineered with high-strength brass or tin bronze base materials that simultaneously facilitate smooth linear motion and transmit torque in rotary motion. Their key advantage lies in a uniquely compact and space-saving design, which facilitates integration into applications with severe spatial constraints. Engineered for exceptional rigidity and minimal runout, these bearings deliver outstanding positional accuracy and load capacity, ensuring reliable operation even at high speeds and under demanding conditions. Furthermore, the design incorporates external lubrication ports for both rotating and linear sections, significantly simplifying maintenance, reducing downtime, and extending service life. This combination of precision, durability, and ease of use makes SPB bearings a versatile and robust solution for a wide range of industries, from advanced robotics and automotive manufacturing to aerospace systems.
Features
1. SPB bearings feature high strength, high hardness, and exceptional load-bearing capacity.
2. SPB high load capacity makes them suitable for heavy-duty applications such as construction machinery and mining equipment.
3. SPB bearings offer wear and corrosion resistance, with excellent resistance to media including acids, alkalis, and seawater.
4. SPB bearings deliver superior shock absorption performance, ideal for high-frequency vibration or impact load conditions.
5. SPB bearings suitable for environments where refueling is not possible, high temperatures, vacuum, or pollution is sensitive built to withstand harsh operating conditions.
6. SPB bearings have low friction coefficients as low as 0.16 and enhanced wear resistance, they improve equipment operational accuracy.
Application
SPB bearings are suitable for construction machinery such as excavator shafts Punch Forging Machinery and crusher bushings Ships and marine equipment: propeller bearings, deck machinery.
Parameters
| Material | CuZn25Al5Mn4Fe3 |
| Density | 8g/cm³ |
| Abrasion Coefficient | 0.03～0.20 |
| Tensile Strength | >750 N/mm² |
| Yield Strength | >340 N/mm² |
| Hardness | >210 HB |
| Max Dynamic Load | 98 N/mm² |
| Max Speed | Dry Lubrication 0.3 m/s | Oil Lubrication 1.0 m/s |
| Friction | Oil Lubrication 0.03~0.08 |
| Dry Lubrication 0.12~0.16 | |
| Working Temperature | -40 ~ +300°C |