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The use characteristics of cross roller bearings

From:SINO BEARINGS2022-09-22
The cross roller bearing IS easy TO INSTALL because the inner ring or outer ring which is divided IS fixed together with the cross roller shaft ring after loading the roller and the interval holder to prevent separation from each other. Because THE ROLLERS ARE ARRANGED in CROSS, ONLY one set OF cross roller shaft ring can bear the load in all directions, and the rigidity is increased by 3~4 times compared with the traditional model. At the same time, because the inner or outer ring of cross-roller bearing is a two-division structure, the bearing clearance can be adjusted, even if preload is applied, it can also obtain high precision rotation motion.
1, with excellent rotation accuracy
The internal structure of the cross roller bearing adopts the rollers to cross each other vertically at 90°.
The rollers are equipped with a spacer retainer or an isolation block to prevent the rollers from rubbing against each other. In addition, there will be no roller contact phenomenon or lock phenomenon; At the same time, because the inner and outer ring is a segmented structure, the gap can be adjusted, even if the prepressure is applied, it can also obtain high-precision rotational motion.
2. Simplified operation and installation
The outer ring or inner ring, which is divided into two parts, is fixed together after the roller and retainer are installed, so the operation is very easy to install.
3. Bear large axial and radial loads
Because the rollers are arranged perpendicular to each other by a spacer holder on a 90° V-groove rolling surface.
4, greatly save installation space
The inner and outer ring size of cross roller bearing is minimized, especially the ultra-thin structure is close to the limit of small size, and has high rigidity. So the most suitable for industrial robot joint parts or rotating parts, machining center rotating table, manipulator rotating part, precision rotating table, medical instruments, measuring instruments, IC manufacturing devices and other widely used.
5. High speed ability
6. Reduce shaft length and machining cost, and thermal expansion leads to limited changes in geometric dimensions
7. Nylon divider, low moment of inertia, low starting torque, easy to control Angle
8. Optimized preload, large stiffness, high precision of guide roller operation
9. Carburizing steel provides excellent impact resistance and surface wear resistance
10. Simple but well-lubricated