Their roller wheels, and ocean shipping between interval cruciate arranged at right angles to each other. They can suffer from both parties to make loading (axial load, thrust or momentum, and so on). Roller line contact with the track surface and, therefore, bearing load and the possibility of elastic deformation is small. This type of bearings are widely used in industrial automation robot, working machinery and medical facilities, and so on, requires high rigidity, tightly and ensures accurate high speed situations.
Cross-roller bearings, for by intervals on the roller holder is perpendicular to line, so 1 crossed roller bearings can accommodate radial loads, axial loads and moment loads and other loads in all directions. Dimensions of the inner and outer rings are minimal compact, ultrathin type is close to the limit of small size, and high rigidity, so the most suitable industrial robot joints or spinning, machining center rotary table, manipulators, precision rotary table rotation, medical equipment, measuring devices, such as IC manufacturing equipment use.