Two structures of full complement circular solid cage without outer ring

The materials used for the metal solid cage are mainly brass and bronze alloys, as well as cast iron and steel. The structure is mainly divided into two types: split type and integral type. The difference between the split structure is mostly in the connection method; On the improvement of bearing friction, operation and load performance. Since the split cage needs to be formed as a whole to realize the function, the split is mainly for the convenience of the process, and the split connection still has the problem of unreliability. Therefore, with the advancement of technology, the application of the overall cage will be more and more. more. 1. Split cage 1.: Split pillar riveted cage The split pillar riveted cage consists of half cages, baffles and rivets, generally guided by rollers, as shown in the figure above. The semi-cage and baffle are generally made of copper, and the rivets are generally made of low-carbon steel. Cylindrical roller bearings with cages of this structure are more commonly used, and have the advantages of low friction, low temperature rise, low noise, high strength, and easy processing, and are suitable for high-speed and heavy-load conditions. The disadvantage is that the existence of rivet holes weakens the strength of the cage, and improper riveting will cause loosening. 2.: Split-type self-riveting cage The split-type self-riveting cage consists of a half cage and a baffle. The end of the half-cage beam has a riveting head, and the baffle has riveting holes, which can realize self-riveting without rivets, as above as shown in the figure. The structure of the cage is similar to the split-type strut riveted cage, and the technical principle and application characteristics are basically the same. The difference lies in the connection method of the split-type cage. 3.: Pillar-type cage The pillar-type cage of the full complement cylindrical roller bearing connects the cages together through the pillars, as shown in the figure above. One end of the strut is threaded, one end is screwed on a retaining ring of a cage, passes through the hollow roller, and the other end is welded to another retaining ring of the cage. Sometimes, in heavy duty applications, both ends of the struts need to be welded. When the cage is a pillar-type design, it can accommodate a large number of rollers, and the bearing capacity is high. It is generally used for large bearings, such as rolling mill bearings. 2: Integral cage 1: Integral straight window hole cage The structure of the integral straight window hole cage is shown in the figure above. The cage is generally guided by the outer ring or the inner ring, and the straight window holes have locking points to lock the rollers. Compared with the split cage, the integral cage has higher strength and more reliable work, but it is relatively difficult to process, and the window hole generally needs to be broached. 2. Integral arc angle window hole cage The structure of the integral arc angle window hole cage is shown in the figure above. Because the inner surface of the lintel is an arc surface, it is convenient for the rollers to guide and lubricate, but it increases the processing difficulty. This structure can mainly avoid the interference between the corners of the pocket lintel and the rollers, reduce the stress concentration at the corners to a certain extent, and facilitate lubrication. 3. Double and four row cylindrical roller bearing comb cage

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