Cross roller bearing<br>Cross roller bearing is a kind of vertical arrangement of cylindrical roller or tapered roller on the rolling surface of V-shaped groove with 90 degrees through isolation block, so it can bear radial load, axial load and moment load. The size of the inner and outer rings is miniaturized, the extremely thin form is close to the limit of the small size, and has high steel, and the accuracy can reach P5, P4, P2. Therefore, it is suitable for the joint and rotating parts of industrial robots, rotating tables of machining centers, precision rotating worktables, medical machines, calculators, military industry, IC manufacturing devices and other equipment.<br>Characteristics of cross roller bearing:<br>1. Excellent rotation accuracy<br>The internal structure of the cross roller bearing adopts the roller to be arranged in 90 ° mutually vertical cross arrangement, and the roller is equipped with a spacing keeper or an isolating block between them, which can prevent the inclined cargo roller of the roller from grinding each other and effectively prevent the increase of rotation torque. In addition, one side contact or locking phenomenon of roller will not occur; at the same time, because the inner and outer rings are divided structure, the gap can be adjusted, and even when preloading is applied, high-precision rotary motion can be obtained.<br>2. Simplified operation and installation<br>The outer ring or inner ring, which is divided into two parts, is fixed together after the roller and retainer are installed, so the installation is very simple.<br>3. Bearing large axial and radial loads<br>Because the rollers are arranged perpendicular to each other on the V-groove rolling surface of 90 °, the cross roller bearing can bear large radial load, axial load, moment load and other loads in all directions.<br>4. Save installation space<br>The inner and outer ring size of cross roller bearing is miniaturized to the minimum, especially the ultra-thin structure is close to the limit of small size, and has high rigidity, so it is most suitable for the joint or rotating part of industrial robot, the rotating table of machining center, the rotating part of manipulator, the precision rotating table, medical instruments, measuring instruments, IC manufacturing devices, etc General purpose.<br>
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