SF-2 Boundary Self-Lubricating Bearing is a boundary lubricating bearing made of three-layer composite self-lubricating material. The following is a detailed introduction to it as an efficient lubrication choice for industrial equipment:

SF-2Y Boundary Self-lubricating Bearing
Material and structure
• Three-layer composite structure: SF-2 bearings are composed of a steel back, a porous bronze layer, and a mixed layer of polyoxymethylene (POM) and lead on the surface. The steel back provides high strength and load-bearing capacity; the porous bronze layer has good load-bearing capacity and wear resistance, and has high thermal conductivity and can conduct heat in time; the POM layer on the surface has a low friction coefficient and high wear resistance, and can maintain a low friction coefficient even in the case of instantaneous oil shortage.
• Special surface treatment: The surface usually rolls out the oil storage pit, and is coated with lithium-based grease or silicone-based grease during assembly to enhance lubrication performance.
Performance characteristics
• Self-lubricating performance: No external lubricant is required, relying on internal materials to provide lubrication, reducing maintenance requirements, especially suitable for parts that are difficult to lubricate frequently.
• Low friction coefficient: The friction coefficient is between 0.05-0.20, which can effectively reduce wear and energy loss and improve equipment operation efficiency.
• High load capacity: The static load capacity can reach 140 N/mm² and the dynamic load capacity is 70 N/mm², which is suitable for high-load conditions.
• Good wear resistance: Under boundary lubrication conditions, its wear rate is very low, and re-greasing after the grease is consumed can significantly extend the service life.
• Corrosion resistance: Through special materials and surface treatment, it has good corrosion resistance and is suitable for use in harsh environments.
• Low noise operation: It runs smoothly and has low noise, which is suitable for equipment with strict noise requirements.
Application areas
• Automotive industry: Used in automobile chassis, brake calipers, steering kingpin sleeves and other components, it can withstand high loads and reduce maintenance.
• Metallurgy and mining: In metallurgical machinery and mining equipment, such as crushers, ball mills, etc., SF-2 bearings can adapt to harsh working environments and extend equipment life.
• Construction and engineering machinery: In equipment such as cranes, loaders, and excavators, the bearings can withstand high loads and shock loads to ensure stable operation of the equipment.
• Agricultural machinery: Suitable for agricultural equipment such as tractors and harvesters to improve the reliability and durability of the equipment.
• Other industrial equipment: Such as textile machinery, printing machinery, hydraulic equipment, etc., SF-2 bearings can play an excellent lubrication and wear resistance.
Maintenance and installation
• Pre-installation inspection: Ensure that the bearings are not damaged, contaminated, and kept clean.
• Choose the appropriate installation method: Avoid strong impact and deformation, and ensure correct installation.
• Regular inspection and maintenance: Although the self-lubricating performance reduces the need for maintenance, it is still necessary to regularly check the wear of the bearings and re-oil them when necessary.