The engine sliding NSK Bearings Technical Analysis

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The NSK bearings sliding on the engine There are many either bushing or bearing belonging to slide NSK bearings. In order to guarantee the accuracy of the operation of the engine, these sliding NSK bearing running clearance re quirements are also very high. Failure engine sliding NSK Bearings can return to their roots: of lubrication critical state and caused the destruction of any interference in the running clearance and destruction of the film of any substance. Such as installation and adjustment inaccurate parts bump damage and cleanliness, incorrect use harmful chemical reaction will cause sliding NSK Bearings damage. Statistical analysis in his book American Cummins engine failure, caused by sliding NSK Bearings damaged There are four main reasons. The four areas accounted for the percentage of failure are as follows: roller bearing
1, since the cleaning damage is 45%;
2, the damage caused due to the lubrication of 25%;
3, due to the use, in damage to the installation is 15%;
4, due to surface reactions and other damage is 15%. steel ball bearing
As we can see from the statistical ratio of the number of cleanliness NSK Bearings damage as the main reason. To prevent damage to the work due to the cleanliness Poor are manifold: guarantee the cleanliness of the part during assembly of the engine is only one aspect, the other is the engine during use. Operator and maintenance staff must timely maintenance checks in accordance with the provisions of the right to use, especially long-term engine dusty environment and chemical raw materials, we must take measures to prevent the erosion of dust and chemical gases, to ensure the use of the engine life. Main bearing in the engine, the connecting rod bearing surface alloy layer is the most soft to withstand the load of the largest and most easily damaged, so the following main bearing and rod bearing surface damage phenomenon, analyze the reasons, to avoid the recurrence of the repair after the failure . contact ball bearing