How to Correctly Choose Crankshaft Bearing Liner of Weichai Generator

Weichai diesel generator set is an important equipment for various occasions, and the crankshaft bearing liner is one of its key components. The crankshaft bearing liner is responsible for bearing the rotational friction and axial load of the crankshaft, therefore, the correct selection and maintenance of the crankshaft bearing liner is crucial. This article will introduce how to correctly select and maintain the crankshaft bearing liner of Weichai diesel generator set. 

1.Classification of crankshaft bearing liners

The crankshaft bearing liners can generally be divided into two types: the main crankshaft bearing liners and the connecting rod crankshaft bearing liners. The main crankshaft bearing liners is a component that directly contacts the crankshaft and is responsible for bearing the rotational friction and axial load of 

the crankshaft; The connecting rod crankshaft bearing is a component in contact with the large end of the connecting rod, responsible for bearing the reciprocating friction and axial load of the connecting rod.

2.Material of crankshaft bearing liners

The material of the crankshaft pad is a key factor affecting its performance. At present, the materials of crankshaft bearings can generally be divided into several types: cast iron, copper based alloy, aluminum based alloy, and steel based alloy. Different materials have different characteristics and applicability, therefore, when selecting crankshaft bearing liners, they should be selected according to the specific situation.

3.Selection of crankshaft bearing liners

a. Select crankshaft bearing liners based on crankshaft material

The matching of crankshaft bush and crankshaft material is an important guarantee to ensure the normal operation of diesel generator set. Generally speaking, the material of the crankshaft bush should match the crankshaft material, which can reduce the friction and wear between the crankshaft bush and the crankshaft, and extend the service life of the diesel generator set.

b. Select crankshaft bearing liners according to the working environment

The working environment of the diesel generator set is also an important factor in selecting the curved bearing bush. Different working environments also have different requirements for curved bearing shells. For example, the diesel generator set working in high temperature environment should select the curved bearing bush that can withstand high temperature.

d. Choose crankshaft bearing liners based on quality and price

The quality and price of crankshaft bearings are also important factors in the selection. Generally speaking, high-quality crankshaft bearings have better wear resistance and fatigue resistance, and can withstand larger loads. At the same time, higher priced crankshaft bearing liners often have higher quality assurance. Therefore, when selecting crankshaft bearing liners, both quality and price factors should be considered comprehensively.

4.Maintenance of crankshaft bearing liners

Proper maintenance can extend the service life of the crankshaft bearing liners and ensure the normal operation of the diesel generator set. Below are several common maintenance methods for crankshaft bearing liners.

a. Regularly replace the crankshaft bearing liners

Crankshaft bush is one of the wearing parts of the diesel generator set. Regular replacement can ensure the normal operation of the diesel generator set. Generally speaking, the replacement cycle of crankshaft bearings should be determined based on usage, typically ranging from 5000 to 10000 hours.

b. Regularly check the wear of the crankshaft bearing liners

The wear of the crankshaft bushing will directly affect the performance of Weichai diesel generator set. Therefore, it is very important to regularly check the wear of the crankshaft bushing. Generally speaking, the wear of crankshaft bearings should be controlled within the specified range. If the wear is too large, it is necessary to replace the crankshaft bearings in a timely manner.

d. Regularly clean the crankshaft bearing liners

The cleaning of crankshaft bearings can remove dirt and carbon deposits on their surfaces, reduce friction, and extend their service life. Generally speaking, the cleaning cycle of crankshaft bearings should be determined based on usage, usually between 1000 and 2000 hours.

In a word, the correct selection and maintenance of Weichai generator crankshaft bearing liners can ensure the normal operation of the diesel generator set and extend its service life. When selecting crankshaft bearing liners, comprehensive consideration should be given to factors such as crankshaft material, working environment, quality, and price. Regular replacement, inspection, and cleaning of crankshaft bearing liners are also very important maintenance methods.