fag bearing characteristics analysis

 (1) fag main bearing side positioning. With the use of the main bearing fag fag main bearing cap tight fit between the sides, maintaining both a good move relative to the mounting location. The transition between the two commonly used with (for fag main bearing cap size small) or clearance fit (for the main bearing cap fag larger size). In order to improve the overall rigidity body structure, the use of lateral positioning, you can also set the horizontal pull bolt structure, ie laterally along the body from the side of the main bearing fag position with horizontal pull bolt it together with the body. fag main bearing cap side positioning features are: simple structure, reliable positioning, but assembly and disassembly difficult. (2) positioning cylinder. In the main bearing fag junction surface with the cover, with the cylindrical surface of the part, it simultaneously with the main bearing, covered closely with the positioning holes to prevent the mounting position between the lateral displacement. The cylindrical parts can be made ​​of a single r alone positioning sleeve can also be directly in the fag main bearing bolts on the processing of a positioning cylinder. The positioning of the features are: positioning reliable, easy accessibility, but bear the load capacity is small, especially when using the bolt, so that the main bearing bolts force conditions worsen (to withstand shear forces), and the positioning process requires high TL . (3) positioning the serrations. The fag main Roller bearing and cap combination of surface machined serrated positioning surface, two joint surface serrated bite each other closely together in order to maintain both wrong mounting position shift does not occur. The positioning structure is characterized; locate reliable, easy assembly and disassembly, but the structure is more complex, high precision tooth surface, processing difficulties.
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