Cross roller bearing is a special type of bearing with inner ring division and outer ring rotation.Because the divided inner ring or outer ring, after loading the roller and spacer, is fixed together with the cross roller shaft ring to prevent them from separating from each other, it is easy to operate when installing the cross roller shaft ring.Because the rollers are interlocked, only 1 set of interlocked rollers can bear the load in all directions.At the same time, because the cross roller bearing inner ring or outer ring is a two-part structure, bearing clearance can be adjusted, even if the preload is applied, also can obtain high precision rotation movement.Moreover, due to its special structure, it is commonly used as joint bearing in industrial robots.

In the cross roller bearing, because the cylindrical rollers are arranged perpendicular to each other through the spacer, one cross roller bearing can bear the radial load, axial load, torque load and all directions of the load.The size of the inside and outside the circle is a minimum of miniaturization, especially extremely thin type is close to the limit of small size, and high rigidity, so the most suitable for industrial robot joint department or rotate department, machining center of rotary worktable, manipulator rotate, precision rotary worktable, medical machine, meter, IC manufacturing equipment, etc.