Sliding imported bearing skills introduction

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Sliding imported bearing skills introduction

Source: China Bearing Network Time: 2013-01-29

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1, the basic requirements, both the journal and the sliding bearing should be evenly and finely touched; there must be a certain cooperation gap.
2. The touch angle refers to the central angle of the contact surface of the journal and the sliding bearing. The touch angle is not too large or too small. The touch angle is too small to increase the pressure of the sliding bearing; Large deformation; accelerated wear; shortened service life, too large touch angle; will affect the composition of the oil film; no outstanding liquid smoothness. Experimental research indicates; the limit of the sliding bearing touch angle is 120 °. When the sliding bearing wears to this When a touch angle is used, the liquid is smooth and damaged. Therefore, the condition of the sliding bearing is not affected. The smaller the touch angle is, the better the theoretical analysis is from the conflicting force distance; when the touch angle is 60°; the conflicting moment is the most. Squatting and squatting, 500r/min sliding bearing; 60° touch angle; sliding bearing with speed less than 500r/min; 90° touch angle; 60°.
3, touch point, the actual touch condition of the journal and the surface of the sliding bearing; can be indicated by the number of practical touch points per unit area. The more touch points, the finer and more uniform the touch points; the better the sliding bearing is scraped; otherwise; It shows that the sliding bearing is not good enough. Generally speaking, the more fine the touch point is, the more difficult it is to scrape.

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