The precision crossed roller bearing structure is divided into an inner ring or an outer ring. After being installed in the roller and the retainer, it is firmly attached to the cross roller collar and can be prevented from separating. Moreover, the manipulation of placing the cross roller collar is also very simple. Precision crossed roller bearings have some unique features of use.

    Because the rollers of the precision crossed roller bearings are arranged in a criss-cross pattern, only one set of cross roller collars can be used to withstand various deflection loads. Compared with the conventional models, the rigidity is improved by 3 to 4 times.

    Because the inner ring or outer ring of the precision crossed roller bearing is a two-part structure, the bearing clearance is adjustable, and even if preload is applied, high-precision rotation can be achieved.

    Precision crossed roller bearings can simultaneously receive loads from various deflections (such as axial, thrust or momentum loads). Because the roller is in current contact with the surface of the track, the bearing is less susceptible to elastic deformation.

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

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

    Precision cross roller bearings are used in rotary tables, robot hand rotation parts, ultra-precision rotation tables, work machines, and medical equipment, which are used in, for example, industrial automation robots and machining centers.