Cross Roller Bearing

This type of bearing is widely used in industrial automatic robots, working machinery and medical facilities, where high rigidity, tightness and high speed are required to ensure accuracy. In cross roller bearings, because the cylindrical rollers are arranged vertically with each other through the interval retainer on the 90° dry V-groove rolling surface, a cross roller bearing can bear the load in all directions, such as radial load, axial load and torque load.

1.RB type (outer ring split type, inner ring rotation) This series model is the basic type of cross cylindrical roller bearings, the inner and outer ring size is minimized, its structure is the outer ring is split type, the inner ring is an integrated design, suitable for the parts requiring high rotation accuracy of the inner ring.

2.RE type (inner ring division type, outer ring rotation)

This series model is a new type produced by the design concept of the RB type, and the main size is the same as the RB type. Its structure is that the inner ring is segmented, and the outer ring is an integrated design, which is suitable for the parts requiring high rotation accuracy of the outer ring

3.RU type, XSU type (inner and outer ring type)

Since the mounting holes have been machined in this series, there is no need to fix flanges and support seats. In addition, due to the integrated inner and outer ring structure with a seat, the installation has little impact on performance, so stable rotation accuracy and torque can be obtained. The roller is mounted through the taper pin hole and can be used for outer and inner ring rotation.

4.SX type (outer ring division type, inner ring rotation)

Its structure is similar to the RB series, the outer ring is a two-part structure, connected by three fixed rings, and the inner ring is designed as one, which is suitable for the parts requiring high rotation accuracy of the inner ring.

5.CRB type (outer ring segmentation type, inner ring rotation)

Its structure is the outer ring is split type, the inner ring is an integrated design, without cage full loaded roller bearings. Suitable for parts requiring high inner ring rotation accuracy.

Type C (outer ring split type, inner ring rotation) its structure is the outer ring is split type, the inner ring is an integrated design, with cage full loaded roller bearings. Suitable for parts requiring high inner ring rotation accuracy,

6.CRBH type (inner and outer ring type)

The inner and outer rings of this series are of one structure, and rollers are mounted through the taper pin holes for the outer and inner ring rotation.

RA Type (outer ring split type, inner ring rotation)RA Type This series model is a compact model that reduces the inner and outer ring thickness of RB type to the limit. Suitable for parts requiring lightweight, compact design, such as robot and manipulator rotation parts.

Cross roller bearings, because of the divided inner ring or outer ring, after loading the roller and spacing reholder, and cross roller shaft rings fixed together to prevent separation from each other, so the installation of cross roller shaft rings is simple to operate. Due to the cross arrangement of rollers, non-standard cross roller bearings can bear the load in a specific direction with only one set of cross roller shaft rings, and the rigidity is increased by 3 to 4 times compared with the traditional model. At the same time, because the inner or outer ring of the cross roller bearing is a two-part structure, the bearing clearance can be adjusted, even if the preload is applied, it can also obtain high precision rotating motion.

1.With excellent rotating accuracy of the cross roller bearing internal structure of the roller is 90° vertical cross arrangement, between the rollers are equipped with an interval holder or isolation block, can prevent the roller tilt between the roller roller grinding, effectively prevent the increase in rotating torque. In addition, one side of the roller contact phenomenon or locking phenomenon will not occur; At the same time, because the inner and outer rings are segmented structures, the gap can be adjusted, even if it is pre-pressed by the family, it can also obtain high-precision rotating motion.

2. Simplify operation and installation

The outer ring or inner ring, which is divided into two parts, is fixed together after loading the roller and the retainer, so the installation operation is very simple.

3. Bear large axial and radial load

Because the rollers are vertically aligned with each other on a 90° V-grooved rolling surface through spacer retainers, this design allows the cross roller bearing to withstand large radial loads, axial loads and torque loads in all directions.

4, Greatly save installation space The inner and outer ring size of the cross roller bearing is minimized, especially the ultra-thin structure is close to the limit of small size, and has high rigidity. Therefore, it is most suitable for the joint parts or rotating parts of industrial robots, the rotating table of mechanical machining center, the rotating part of the manipulator, the precision rotating table, medical instruments, measuring instruments, IC manufacturing devices and other wide uses.

5. High speed capacity

6. Reduce shaft length and processing costs, thermal expansion leads to limited changes in geometric dimensions

7. Nylon separator, low moment of inertia, low starting torque, easy to control the Angle division

8. Optimized preload, high stiffness, and high precision guiding roller operation

9. Carburized steel provides excellent impact resistance and surface wear resistance

10. Simple but well-lubricated

It is suitable for the joint part or rotating part of industrial robots, the rotating table of mechanical machining center, the rotating part of manipulator, the precision rotating table, the medical machine, the meter, the I℃ manufacturing device, etc.