In the cross-roller bearing, the cross-roller bearing can bear radial load, axial load and moment load because the cylindrical rollers are arranged perpendicularly to each other through the spacer on the 90° V-shaped groove rolling surface. Wait for loads in multiple directions. The size of the inner and outer rings is miniaturized, and the extremely thin form is a small size close to the limit, and has high rigidity. Therefore, it is more suitable for the joint portion and the rotating portion of the industrial robot, the rotary table of the machining center, the robot rotating portion, Precision rotary table, medical equipment, measuring instruments, IC manufacturing equipment and other equipment.

 

  Rotational accuracy: The spacers are arranged between the vertically arranged rollers in the bearing to prevent the inclination of the rollers and the friction between the rollers and reduce the rotational torque. In addition, the edge stress concentration or locking of the roller does not occur as compared with the previous use of the steel plate holder. At the same time, since the inner ring or the outer ring is a two-part structure, the bearing clearance can be adjusted, and even if a preload is applied, the rotation can be performed with high precision and smoothness.

 

  Type of crossed cylindrical roller bearing:

1. RB type (inner inner ring and outer ring split) This model is the basic type of cross roller bearing. The outer ring is divided into two pieces, and the inner ring is a unitary structure, which is more suitable for occasions requiring the inner ring rotation precision.

2, RE type (inner ring split, outer ring overall) is also the basic type of crossed roller bearing, the outer dimensions and RB type are the same, but the structure is the outer ring as a whole, the inner ring is divided into two pieces, it is more suitable for Where the outer ring rotation accuracy is required.

3, RU type (integral inner and outer ring, with mounting holes), because the outer ring and the inner ring have mounting holes, the mounting flange and the support base are not required for installation. In addition, since the outer ring and the inner ring are both integral structures, the mounting has almost no effect on the performance, so that stable rotation accuracy and torque can be obtained, which is suitable for the case where the outer ring and the inner ring rotate.

4. RA type (inner inner ring, outer ring split, ultra-thin) This model is a compact type that reduces the thickness of the inner and outer rings of the RB type to the limit. The structure and the outer ring structure of the RB type are more suitable for the required weight. Light, compact design, such as the rotating part of the robot.

5, CRBH type (integral inner and outer ring, ultra-thin), this model is ultra-thin RU, due to the ultra-thin design and no mounting holes in the outer ring and inner ring, the flange and the support seat need to be fixed during installation. In addition, since the outer ring and the inner ring are both integral structures, the mounting has no effect on the performance, so that stable rotation accuracy and torque can be obtained, and it is suitable for the case where the outer ring and the inner ring rotate but have the size miniaturization requirement.

6, SX type (inner inner ring, outer ring split type, ultra-thin), in the case of the same journal, this type has a smaller cross-sectional size than the RB type, due to the ultra-thin design, the outer ring and the inner ring There is no mounting hole, the flange and the support base need to be fixed during installation, which is suitable for applications where the inner ring rotates.