Structure and use of cross-roller bearings (application areas): The cross roller bearings have their rollers arranged at right angles to each other between the inner and outer wheels. They can take loads from all directions (such as axial, thrust or momentum loads) simultaneously. Because the roller is in current contact with the surface of the track, the bearing is less likely to be elastically deformed by the load. In the cross roller bearing, because the cylindrical rollers are arranged perpendicular to each other through the spacer on the 90-degree V-shaped groove rolling surface, a cross roller bearing can bear radial load and axial load. And moment loads and other loads in all directions.

    The size of the inner and outer rings of the crossed roller bearing is miniaturized, and the extremely thin type of the cross roller bearing is a compact size that is close to the limit, and has high rigidity, so it is most suitable for joints or rotating parts of industrial robots. The use of rotary tables, robot rotating parts, precision rotary tables, medical equipment, gauges, IC manufacturing equipment, etc. in machining centers.

    Features: Cross roller bearings, due to the split inner ring or outer ring, are fixed to the cross roller collar after they are installed in the roller and spacer, so as to prevent separation, so install cross roller collar Simple operation. Since the rollers are arranged crosswise, only one set of cross roller collars can bear the load in all directions. Compared with the conventional models, the rigidity increases by 3 to 4 times. At the same time, NTN imported bearing fork roller bearings due to cross-roller bearing inner ring or outer ring is a two-part structure, the bearing gap can be adjusted, even if the preload is applied, but also can obtain high-precision rotation.

    Uses: This type of bearing is widely used in industries such as industrial robots, work machines and medical facilities, etc. It needs high rigidity, tightness and high speed to ensure accuracy.