Super Precision Cylindrical Roller Bearings Radial bearing.com/cylindrical-roller-bearings.html' target='_blank'>cylindrical roller bearings with high precision design are part of the hrb Songbei Seiko super precision series. Songbei Seiko can provide a full range of high-precision products of the n10 and nn30 series, as well as some selected size products of the n19 and nnu49 series. They are ideal floating-end bearings because the linear expansion that occurs during rotation can be compensated by the float between the rollers and raceways. In addition, radial cylindrical roller bearings also have a very high radial endowment. Floating bearings are almost exclusively single-row bearings, so this product is widely used as floating bearings. In addition, it is also used in bearing units with the following requirements: ●Radial stiffness ●High axial load capacity ●And high precision In these applications, the axial load is generally borne by the 2344 series bidirectional thrust angular contact ball bearings. Bearing Design Standard cylindrical roller bearings have tapered bores (1:12 taper) for precise adjustment of radial clearance. Therefore, the required radial clearance or radial preload can be adjusted by axial displacement on the tapered spindle. Hybrid ceramic roller bearings with rollers made of ceramic materials are our new products. The use of ceramic roller bearings has a significant improvement in friction and wear performance. This reduces the amount of lubricant and reduces the temperature at the same time. As a result, higher transmission speeds can be achieved and the service life is significantly longer. Furthermore, the ceramic rollers increase static and dynamic stiffness and, due to the lower coefficient of thermal expansion, eliminates the increased preload at elevated temperatures. Due to the very good surface quality of the inner and outer ring raceways and rollers, hrb cylindrical roller bearings are particularly suitable for grease lubrication. Due to the presence of two ribs on the bearing races, the distribution and run-in process of the grease requires special care. Assuming oil lubrication, it should be noted that this product requires less oil lubrication than angular contact ball bearings. Assuming that these two types of bearings are assembled side-by-side, separate oil circuits must be maintained to avoid excess lubricating oil injection from angular contact ball bearings, resulting in over-lubrication and a sudden rise in bearing temperature.
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