N type cylindrical roller bearing has no guard edge

The outer ring of n type cylindrical roller bearing has no guard edge, and both sides of the inner ring have guard edge. Displacement in both axial directions between the shaft and the housing can be allowed. 
The bearing of NU type has flange on both sides of the outer ring and no flange on the inner ring.  Displacement in both axial directions between the shaft and the housing can also be allowed. Therefore, this structure is suitable for use as a moving end bearing.
Radial clearance adjustment method of n type cylindrical roller bearing
The commonly used methods to adjust the radial clearance of fully loaded n type cylindrical roller bearing are as follows:  
1. For the backlash of cylindrical and oval bearing bush, it can be adjusted by manual scraping or by repairing and scraping after turning with cushion in the bearing surface.  
2, for the top clearance of cylindrical and oval bearing bush can be manually scraped or if the situation permits, the method of adding pad in the bearing surface adjustment.
3, for multi oil wedge fixed n type cylindrical roller bearing, in principle, it is not allowed to repair scraping and adjust the bearing gap, the gap should be replaced when appropriate.   
4. For multi wedge tilting n type cylindrical roller bearing, it is not allowed to repair and scrape tiles, and the gap should be replaced due to tiles when appropriate.  For the tile with adjustable thickness, stainless steel pad can be added under the tile back adjustment block, or the method of thinning adjustment block thickness can be used to adjust the tile amount.  Note that for multi-wedge tilting bearing, the thickness error between the same group of tiles should be less than 0.01mm. 
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