Cross-roller bearings, which are divided into inner rings or outer rings, are fixed to the cross-roller collars after they are installed in the rollers and spacers to prevent them from separating. Therefore, the cross-roller bearings are installed when the cross roller bearings are installed. simple. Since the rollers are arranged crosswise, only one set of cross roller collars can bear the load in all directions. Compared with the conventional models, the rigidity increases by 3 to 4 times. At the same time, because the inner ring or outer ring of the cross roller bearing is a two-part structure, the bearing clearance can be adjusted, and even if preload is applied, high-precision rotation can be achieved.
1, has excellent rotational accuracy
The internal structure of the cross roller bearing adopts rollers arranged at 90° to cross each other vertically.
There are spacers or spacers between the rollers to prevent the rollers from tilting between them. In addition, there is no contact phenomenon or lock-up phenomenon of the roller; at the same time, because the inner and outer rings are divided structures, the gap can be adjusted, and even if a preload is applied, high-precision rotary motion can be obtained.
2, operation and installation simplification
The outer ring or the inner ring that is divided into two parts is fixed together after being loaded into the roller and the retainer, so the installation operation is very simple.
3, withstand large axial and radial loads
Because the rollers are arranged perpendicular to each other through the spacers on the V-groove running surface which is 90°.
4, substantial savings in installation space
The size of the inner and outer rings of a crossed roller bearing is miniaturized. In particular, the ultra-thin structure is a compact size that is close to the limit, and has a high rigidity. Therefore, it is most suitable for the rotation of a joint or a rotating part of an industrial robot or a machining center. It is used for a wide range of applications such as worktables, robotic rotating parts, precision rotating tables, medical instruments, measuring instruments, and IC manufacturing equipment.
5. High speed capability
6. Reduce shaft length and machining costs, thermal expansion leads to limited changes in geometry
7. Using nylon separator, low rotational inertia, low starting torque, easy to control angle indexing
8. Optimize the pre-tightening force, high rigidity, high precision of guided rollers
9. Carburized steel provides excellent impact resistance and surface wear resistance
10. Simple but fully lubricated
