The precision cross-roller bearing structure is divided into an inner ring or an outer ring, which is secured to the cross roller collar after being loaded into the roller and the retainer to prevent separation from each other. Moreover, the handling of the placement of the cross roller collar is also very simple. Precision cross roller bearings have some unique features.

    The rollers of the precision cross-roller bearing are arranged in a crisscross pattern, so that only one set of cross-roller collars can withstand the biasing load, and the rigidity is increased by 3 to 4 times compared with the conventional model.

    Since the inner or outer ring of the precision crossed roller bearing is a two-part structure, the bearing clearance can be adjusted, and even if a preload is applied, the rotating motion can be obtained with high precision.

    Precision crossed roller bearings can withstand loads from various deflections (such as axial, thrust or momentum loads). Since the roller is in contact with the track surface, the probability of the bearing being subjected to load and elastic deformation is small.

    In the precision crossed roller bearing, since the cylindrical rollers are vertically separated from each other by the retainer on the V-shaped groove rolling surface of 90, a set of precision crossed roller bearings can withstand radial load and axial direction. All biased loads such as load and moment load.

    The size of the inner ring is miniaturized to a minimum, and the extremely thin type is a small size close to the limit and has high rigidity.

    Precision cross roller bearings are used in, for example, industrial robots, rotary tables for machine machining centers, robotic rotating parts, ultra-precision rotary tables, work machines, and medical equipment.