What causes the wear of Shanghai gasoline generator journals

November 04, 2020

After the crankshaft of Shanghai gasoline generator is used for a long time, uneven wear occurs due to the cyclical changes in the magnitude and direction of the force acting on the connecting rod journal and the crankshaft journal, which is an inevitable result of natural wear and is a normal phenomenon. But due to improper use, poor lubrication, bearing clearance is too large or too small, will accelerate the journal wear and journal wear uneven wear, the main manifestation of wear after the journal is not round (out of round) and not cylindrical ( Tapered).

The wear of crankshaft journals (also known as main journals) and connecting rod journals of gasoline generators in Shanghai is due to uneven wear resulting in non-cylindrical shaft diameters along the circumference and non-cylindrical wear along the length. The wear of connecting rod journals of small domestic generators is often about one to two times greater than that of crankshaft journals. The wear of the crankshaft journal results from the interaction of the piston connecting rods at both ends. The resultant force is generally less than that of the connecting rod journal. Therefore, the wear of the crankshaft journal is also less than that of the connecting rod journal.

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