The hinge joint composed of copper sleeve (sliding bearing) is a commonly used hinge joint in construction machinery such as excavators, loaders, bulldozers, cranes, boom concrete pump trucks, and aerial work vehicles. Qualified hinge joints should have a reasonable fit clearance, which can store lubricating grease to ensure that the bucket shaft and shaft sleeve reduce wear and resistance during relative motion. A reasonable fit clearance of the hinge can leave a certain space for the thermal expansion generated when the pin shaft and the shaft sleeve move relative to each other, in order to prevent sintering.
If the clearance of the hinge exceeds the tolerance, it will cause the fit between the pin shaft and the shaft sleeve to loosen, generate vibration, impact, and eccentric wear, leading to increased wear or bucket shaft fracture, and even causing major equipment and personal accidents. Excessive clearance between hinges can also cause deviations and shaking in the operation of construction machinery, leading to a decrease in operational accuracy and efficiency. So maintaining a reasonable hinge clearance is an important link in improving the reliability of construction machinery.
Copper sleeve is a type of mechanical lubrication component, which is divided into many types due to differences in material, process, etc. Each type of copper sleeve has its own characteristics, so there are slight differences in the selection of different industries. For construction machinery, graphite copper sleeves are commonly used.
Graphite copper sleeve is produced using graphite, which has a relatively relaxed structure and is easy to create holes, laying the foundation and preparation for subsequent operations. The copper sleeve surface with holes is embedded with solid lubricant, forming a self-lubricating bearing that reduces the amount of lubricating oil and enhances the operating efficiency of construction machinery.
With the continuous increase and improvement of construction machinery, the demand for components such as copper sleeves and bearings is also rapidly increasing. Among these components, copper sleeves are the most important because they are the core that keeps the machinery running. So how to choose such an important component?
Graphite copper sleeve combined with self-lubricating bearings enables construction machinery to operate quickly, while reducing the use of various raw materials and enhancing work efficiency. So for complex and precise equipment such as large machinery, heavy machinery, and engineering machinery, graphite copper sleeves and self-lubricating bearings should be selected to make the product superior.
Hunan Jintai export all various of slide bearings and slide pads with high quality and best price. material can be steel,bronze,PTFE,POM ,bronze+Graphite ect. widely using for car accessories,harvest machine,ship parts,texitle machinery ,ect. accept customized sizes according to your drawing.
Contact: Susan Shi
Email: susan@slide-bearing.com