Connecting Rod Bearings

The main function of the excavator connecting rod bearing is to reduce the wear of the crank pin.

The connecting rod bearing is a component that connects to the crank pin, designed to minimize friction between the crank pin and the shaft, thereby extending the service life of the crank pin. This design effectively reduces friction between the crank pin and the shaft, enhancing the performance and efficiency of the engine. The structure of the connecting rod bearing includes the crosshead connecting rod big end bearing and the connecting rod bolts, with the crosshead connecting rod big end bearing typically manufactured separately and then connected to the shaft via the connecting rod bolts. Additionally, the structure of the connecting rod bearing may include self-adjusting or platform-type small end bearings, which help ensure the normal operation and stability of the engine.

During the installation and removal of the excavator bearings, care should be taken to avoid deforming or damaging components such as the bearing cage, seals, and dust covers. The pressure applied during installation or removal should be directed solely onto the end face of the tightly fitted bearing snap ring, rather than being transmitted through the rolling elements, to prevent creating indentations on the working surface of the bearing, which could affect its normal operation or even damage it.

In summary, the connecting rod bearing is an important component in the excavator, and its design and manufacturing require strict standards to ensure quality and performance. Regular inspection and replacement of the connecting rod bearings are essential measures to guarantee the normal operation of the excavator.