Extensive Inventory of High Quality Crossed Rollers For Display

Crossed roller bearings are mainly used in machinery to support and reduce friction. For high-speed applications that simultaneously bear radial loads, axial loads and moment loads and other multi-directional loads, crossed roller bearings are generally used.

The size of the inner and outer rings of the crossed roller bearing is minimized, especially the ultra-thin structure is a small size close to the limit, and has high rigidity, so it is used in the joints or rotating parts of industrial robots and the rotary table of machining centers , Manipulator rotating part, precision rotary table, medical equipment, measuring equipment, IC manufacturing equipment and other widely used.
 

1. Internal structure diagram of cross roller bearing

The rolling elements of crossed roller bearings generally use cylindrical or tapered rollers in a single raceway groove in a cross-arranged form, and the rollers are separated by brass cages or engineering plastic spacers, so as to have a high rotational speed. Precision, large bearing capacity, small size, high rotation speed and rigidity, and has a wide range of uses. Crossed roller bearings are suitable for industrial robot joints, CNC turntables, DD motors, medical equipment and other fields.


 

2. Features and advantages of crossed roller bearings

1. The crossed roller bearing has a strong, inseparable inner and outer ring structure, which can easily achieve high rigidity and high precision without being affected by the surrounding structure. The bearings are suitable for medium to high speeds, and the bearings have spacers between the cylindrical rollers to provide smooth rotation.

2. The cross roller shaft has the characteristics of high rigidity, accuracy and easy installation. Mounting holes allow for quick fastening of them to components. Spacers are also installed between this type of cylindrical rollers.

3. The outer diameter of the crossed roller bearing is smaller and the width is narrower. Crossed roller bearings are also an option when high performance is required with a small footprint.

Because the crossed roller bearing is divided into two parts, the outer ring or the inner ring, which are fixed together after the rollers and cages are installed, the operation is very simple during installation, and the high precision characteristics of the crossed roller bearing, The precision can reach P4/P2 level, and the volume is smaller, which makes the host more space-saving.
 

3. Classification of cross roller bearings

SX type (integral inner ring, separate outer ring, ultra-thin), under the same shaft diameter, this type has a smaller section size than HRB type, due to the ultra-thin design, the outer ring and inner ring are not installed Holes, flanges and support seats are required for installation, and are suitable for applications where the inner ring rotates.

RU type (integrated inner and outer rings, with mounting holes), since the outer ring and inner ring have mounting holes, there is no need to fix the flange and support seat during installation. In addition, since the outer and inner rings are integrally constructed, mounting has little effect on performance, enabling stable rotation accuracy and torque. Suitable for occasions where the outer and inner rings rotate.

RAU type (integrated inner and outer rings, ultra-thin), this model is a compact type that reduces the thickness of the HRB type inner and outer rings to the limit, and is most suitable for parts that require light weight and compact design, such as the rotating parts of robots and manipulators, and can Suitable for occasions where the inner and outer rings rotate.

RBH type (integrated inner and outer rings, ultra-thin), due to the ultra-thin design and no mounting holes for the outer ring and inner ring, flanges and support seats are required for installation. In addition, since the outer ring and inner ring are integral structures, installation has no effect on performance, so stable rotation accuracy and torque can be obtained. It is suitable for occasions where the outer ring and inner ring rotate but require miniaturization.

RB type (integral inner ring, separate outer ring) This model is the basic type of crossed roller bearings. The outer ring is divided into two pieces, and the inner ring is an integral structure, which is most suitable for occasions requiring the rotation accuracy of the inner ring.

4. Market Prospect of Crossed Roller Bearings

Crossed roller bearings can be widely used in the following industries:

1. Turret cutter indexing, indexing discs, and loaders in the machine tool industry;

2. The rotation and joint drive parts of the robot industry;

3. Handling robots and inspection platforms in the robot industry;

Below is the Stock Model List of Crossed Roller