Cross roller bearing is a split inner ring, outer ring rotation type of special bearings. Divided by an inner ring or outer ring, rollers and after loading space holder, fixing the collar together with the cross-roller, to prevent separation from each other, so that cross roller when the collar is simple to install. Because the rollers are arranged to intersect, and therefore only one set of Cross-Roller ring can bear the load in all directions, compared with the conventional model, the rigidity of the 3 to 4 times. Meanwhile, because the cross roller bearing inner or outer ring is split in two configurations, the bearing gap can be adjusted, even if the preload is applied, can be obtained with high accuracy the rotational movement. Further, because of its special structure, commonly used in the industrial robot joint bearing.
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