Structure point: Crossed roller bearings are cylindrical rollers arranged perpendicular to each other through spacers on the 90-degree V-shaped groove rolling surface, so crossed roller bearings can bear radial loads, axial loads and moment loads and other multi-directional loads. The size of the inner and outer rings is miniaturized, and the thin form is even closer to the limit of small size, and has high rigidity, and the precision can reach P5, P4, P2. Therefore, it is suitable for joints and rotating parts of industrial robots, rotating tables of machining centers, precision rotating tables, medical equipment, calculators, military industry, IC manufacturing equipment and other equipment.

Rotational accuracy: spacers are installed between the vertically arranged rollers in the bearing, which prevents the inclination of the rollers and the mutual friction between the rollers, and reduces the rotational moment. In addition, compared with the conventional steel plate cage, there is no roller contact phenomenon or locking phenomenon. At the same time, because the inner ring (or outer ring) is a two-part structure, the bearing clearance can be adjusted, and even if a preload is applied, high-precision rotational motion can be obtained.

Point of use: After the divided inner ring (or outer ring) is loaded into the roller and the spacer, it is fixed with the cross-roller collar to prevent mutual separation, so the operation is simple when installing the cross-roller collar . The spacer eliminates the mutual friction between the rollers, prevents the rollers from falling sideways, and obtains stable rotational torque. Since the rollers are arranged crosswise, only the cross roller bearing can bear the load in all directions. Compared with the traditional model, the rigidity is increased by 3~4 times.