Product Overview

The JDB-650 self-lubricating bearing combines the wear resistance of copper alloy (ZCuZn24Al6) with the self-lubricating properties of solid lubricants, eliminating the need for oil lubrication during use, thereby reducing maintenance costs and system complexity. This bearing features a unique design, boasts a wide range of applications, and demonstrates exceptional performance, making it a preferred choice for many industrial applications.

Material Composition and Characteristics

• Matrix Material: High-strength copper alloy (ZCuZn24Al6) is employed, offering good wear resistance and mechanical properties.
• Solid Lubricant: Embedded within the copper alloy matrix, solid lubricants typically include natural black lead, artificial graphite, MoS2 synthetic materials, or PTFE-based synthetic materials, providing self-lubricating capabilities.
• Wear Resistance: Thanks to the wear resistance of the copper alloy matrix and the self-lubricating properties of the solid lubricants, the JDB-650 self-lubricating bearing exhibits exceptional wear resistance, capable of enduring high loads and prolonged operation.
• Self-Lubricating Property: External lubrication oil or grease is not required, as the embedded solid lubricants enable self-lubrication, reducing maintenance costs and enhancing mechanical efficiency.

Technical Specifications

• Maximum Load Capacity: The maximum static load capacity is 250N/m², and the maximum load capacity during low-speed operation is 100N/m².
• Operating Temperature: The operating temperature range is very wide, from -100°C to +300°C, suitable for various high and low-temperature environments.
• Maximum Linear Velocity: The maximum linear velocity under grease lubrication is 2m/s, and it can reach 4m/s with continuous oil supply.
• Friction Coefficient: The friction coefficient ranges from 0.03 to 0.20, helping to reduce energy consumption and improve mechanical efficiency.
• Thermal Conductivity: All types of JDB-650 bearings have a thermal conductivity of 60W(m·K)⁻¹, aiding in effective heat dissipation.
• Linear Expansion Coefficient: The linear expansion coefficient varies between 1.6x10⁻⁶K⁻¹ and 1.9x10⁻⁵/°C depending on the material, suitable for applications under different temperature conditions.
• Tensile Strength: The tensile strength and hardness vary, providing options for different load requirements, ensuring the reliability and durability of the bearing.

Application Fields

The JDB-650 self-lubricating bearing is widely used in metallurgical continuous casting machines, train supports, steel rolling equipment, and other high-temperature, high-load, low-speed heavy-duty applications. Due to its self-lubricating properties, this bearing is also particularly suitable for places where it is difficult to apply oil or grease, such as dusty environments or underwater applications.

Product Advantages

• Ease of Installation: The design of the JDB-650 bearing considers ease of installation, simplifying the assembly process and reducing the likelihood of installation errors.
• Low Maintenance Requirements: Due to its self-lubricating properties, the maintenance requirements for the JDB-650 bearing are low, significantly reducing machine downtime and maintenance costs.
• High Load Capacity: This bearing can endure high loads and prolonged operation, suitable for heavy-duty, low-speed, reciprocating, or oscillating applications where it is difficult to form an oil film.
• Resistance to Water and Acid Erosion: It is resistant to erosion and scouring by water and other acids, suitable for various harsh operating conditions.

Conclusion

The JDB-650 self-lubricating bearing, with its exceptional performance, wide range of applications, and low maintenance requirements, has become a preferred choice for many industrial applications. When selecting and using this bearing, it is recommended to consult professional manufacturers and follow their guidance to understand its performance characteristics and maintenance requirements, in order to maximize its performance and extend its service life.