KDB various series bearings have been widely used in various parts of chassis travel mechanism, body parts, hydraulic components and other parts. Copper alloy inlaid solid lubricant bearings and self-lubricating multilayer composite bearings, etc. These bearing materials have excellent wear resistance and dust resistance under high load conditions, while the self-lubricating technology makes the maintenance cycle of the bearings greatly extended, improves the utilization rate of the equipment and reduces the maintenance cost.