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CRBF Series Crossed Roller Bearings - High Precision and Superior Load Capacity

CRBF Series Crossed Roller Bearings

CRBF series crossed roller bearings are a type of bearing designed for applications requiring high precision and rigidity, commonly used in robotics, machine tools, and medical equipment. They feature cylindrical rollers arranged in a crossed pattern, allowing them to support both radial and axial loads in a compact design. This arrangement also helps reduce friction and wear, enhancing the bearing's overall performance and lifespan.

Product Details

CRBF series cross roller bearings are a type of high-rigidity cross roller bearings produced by IKO, with a unique structure and a wide range of applications. The following is a detailed introduction to the CRBF series cross roller bearings:

I. Product Features

High rigidity: The CRBF series cross roller bearings are designed with high rigidity and can withstand large radial, thrust and moment loads, and are suitable for complex load locations.

High precision: Since the rollers are arranged at right angles between the inner and outer rings, and the inner and outer rings are combined into one structure using an inseparable design, the bearings have high rotation accuracy.

Compact: IKO cross roller bearings are compact bearings that take up little space and are suitable for installation environments with limited space.

Easy to install: Some models, such as CRBF with mounting holes, have mounting holes on the inner and outer rings for easy installation and positioning.

II. Structural features

Cross-arranged rollers: The rolling elements of the CRBF series cross roller bearings are cylindrical rollers, which are arranged vertically at 90 degrees to each other in a V-shaped raceway, and the rollers are separated by gaskets. This structure enables a single bearing to simultaneously withstand axial loads, radial loads, and overturning moments.

Fully hardened materials: All cross roller bearings are made of fully hardened materials (such as GCr15SiMn), suitable for applications that require higher rigidity and operating accuracy.

III. Application fields

CRBF series cross roller bearings are widely used in the following fields:

Industrial robots: Due to their high rigidity and high precision, they are very suitable for the joints or rotating parts of industrial robots.

Machining centers: They can be used for the rotary tables of machining centers to provide stable rotation performance and accuracy.

Mechanical equipment: Such as the rotating parts of manipulators, precision rotary tables, etc., where complex loads need to be borne.

Medical devices: In the field of medical devices, CRBF series cross roller bearings also play an important role, such as radar antennas, precision measuring instruments and other equipment.

IV. Models and specifications

CRBF series cross roller bearings are available in a variety of models and specifications, such as CRBF108AT, CRBF2012AT, CRBF2512AT, CRBF3515AT, CRBF5515AT, CRBF8022AT, etc. Bearings of different models and specifications have different parameters such as inner diameter, outer diameter and height to meet the needs of different applications.

Shaft Dia.
mm
Identification Number
Dimensions
mm
Mounting Holes    mm Mounting Dimensions mm
Basic Dynamic Load Rating
C
N
Basic Static Load Rating
C 0
N
Mass (Ref.)
kg
Open Type Sealed Type d D B
(1)
r 1min
(1)
r 2min
PCD1
Inner Ring
Mounting holes
PCD2
Outer Ring
Mounting Holes
d a Da
10 CRBF108AT CRBF108ATUU 10 52 8 0.3 0.3 16 4-M3 Through 42
6-φ3.4 through
φ6.5 Counter Bore Depth 3.3
24 31 2,910 2,430 0.12
20 CRBF2012AT CRBF2012ATUU 20 70 12 0.3 0.3 28 6-M3 Through 57
6-φ3.4 through
φ6.5 Counter Bore Depth 3.3
36.5 48.5 7,600 8,370 0.31
25 CRBF2512AT CRBF2512ATUU 25 80 12 0.6 0.6 35 6-M3 Through 67
6-φ3.4 through
φ6.5 Counter Bore Depth 3.3
46.5 58.5 8,610 10,600 0.40
35 CRBF3515AT CRBF3515ATUU 35 95 15 0.6 0.6 45 8-M4 Through 83
8-φ4.5 through
φ8 Counter Bore Depth 4.4
56 74 17,300 20,900 0.66
55 CRBF5515AT CRBF5515ATUU 55 120 15 0.6 0.6 65 8-M5 Through 105
8-φ5.5 through
φ9.5 Counter Bore Depth 5.4
76 94 20,100 27,700 0.96
80 CRBF8022AT CRBF8022ATUU 80 165 22 0.6 1 97 10-M5 Through 10- φ 5.5 Through φ 9.5 Counter Bore Depth 5.4 148
10-φ5.5 through
φ9.5 Counter Bore Depth 5.4
107 137 51,100 72,000 2.63
80 CRBF8022A CRBF8022AUU 80 165 22 0.6 1 97 148 107 137 51,100 72,000 2.60
80 CRBF8022AD CRBF8022ADUU 80 165 22 0.6 1 97 148 107 137 51,100 72,000 2.60
90 CRBF9025AT CRBF9025ATUU 90 210 25 1.5 1.5 112 12-M8 Through 187
12-φ9 Through
φ14 Counter Bore Depth 12
132 168 73,400 108,000 4.83
90 CRBF9025A CRBF9025AUU 90 210 25 1.5 1.5 112 12- φ 9 Through φ 14 Counter Bore Depth 12 187 132 168 73,400 108,000 4.67
90 CRBF9025AD CRBF9025ADUU 90 210 25 1.5 1.5 112 187 132 168 73,400 108,000 4.67
115 CRBF11528AT CRBF11528ATUU 115 240 28 1.5 1.5 139 12-M8 Through 12- φ 9 Through φ 14 Counter Bore Depth 13.5 217
12-φ9 Through
φ14 Counter Bore Depth 13.5
162 198 84,300 138,000 6.81
115 CRBF11528A CRBF11528AUU 115 240 28 1.5 1.5 139 217 162 198 84,300 138,000 6.63
115 CRBF11528AD CRBF11528ADUU 115 240 28 1.5 1.5 139 217 162 198 84,300 138,000 6.63
CRBF series cross roller bearings are high rigidity, high precision and compact bearing products, widely used in industrial robots, machining centers, mechanical equipment and medical equipment. When selecting and purchasing, it is recommended to select according to specific application requirements and specification parameters, and choose suppliers with good reputation and professional services.