RKS.122290101002 Customized Crossed Cylindrical Roller Slewing Bearings
The RKS.122290101002 Crossed roller slewing bearings are widely used in requiring high levels of rotational accuracy, rigidity, and load-bearing capacity, where installation space is often limited，such as industrial robots (joints, rotary seats), CNC machine tools (rotary tables, turrets), medical equipment (CT scanners, surgical robots), precision measuring instruments, radar turntables, and aerospace applications.
The RKS.122290101002 bearing is a Customized crossed cylindrical roller slewing bearings with an inner diameter of 571 mm , an outer diameter of 816 mm, a width of 90 mm. 50Mn or 42CrMo rings, GCr15 rolling mlement. It primarily bears axial, radial, and tilting moments, Its dynamic axial rated load is approximately 495000 N, its static axial rated load is approximately 1880000 N. Double Sealed type, non-reinforced acrylonitrile-butadiene rubber (NBR). together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
RKS.122290101002 bearings ( 571 mm x 816 mm x 90 mm) have the advantages of The rollers are arranged in a cross pattern, resulting in minimal deformation, low rotational runout, and precise positioning, and are therefore widely used in the Industrial robots, machine tool rotary tables, medical devices, radar antennas and precision rotating equipment.
| Part Number | RKS.122290101002 |
| Bearing Type | Customized crossed cylindrical roller slewing bearings |
| Gear type | external gear |
| Weight [lb] | 257.938 |
| Interchangeable | SKF RKS.122290101002 |
| Rows NO. | One |
| Design NO. | 3 |
| Ca Dynamic Axial [lbf] | 111276 |
| C0a Static Axial [lbf] | 422624 |
| Raceway curves | r4. |
| Bolt curves | b4 |
| Dimension | |
| dm [inch] | 26.575 |
| d φ Inside [inch] | 22.480 |
| D Φ Outside [inch] | 32.126 |
| H Overall Hight [inch] | 3.543 |
| H1 Hight [inch] | 1.654 |
| D1 [inch] | 30.748 |
| D2 [inch] | 26.653 |
| C [inch] | 2.874 |
| C1 [inch] | 2.559 |
| d1 [inch] | 26.496 |
| d2 [inch] | 22.598 |
| B [inch] | 2.638 |
| B1 [inch] | 0.394 |
| bolt holes | |
| Je (Outer ring) [inch] | 29.646 |
| Ke (Outer ring) [mm] | 22 |
| Ne (Outer ring) | 36 |
| Ji (Inner ring) [inch] | 23.779 |
| Ki (Inner ring) [mm] | 22 |
| Ni (Inner ring) | 35 |
| Gear | |
| do Gear (PCD) [inch] | 31.181 |
| m Module [inch] | 0.236 |
| z Teeth No. | 132 |
| x·m [mm] | 6.552 |
| k·m [mm] | 0.552 |
| Tooth forces | |
| T fnormal [lbf] | 8992 |
| T fmax [lbf] | 17759 |
The RKS.122290101002 Crossed roller slewing bearings mainly consist of an inner ring, an outer ring, cross-arranged cylindrical rollers, spacers, and a sealing device. The rollers are arranged at 90° intervals within the raceway, enabling a single-row structure to withstand multi-directional loads.
The cross-arrangement of the rollers in crossed roller slewing bearings allows them to simultaneously withstand radial loads, axial loads, and overturning moments. They exhibit extremely high rigidity and a precision grade of P5 or higher. Their compact structure and easy installation significantly save installation space.
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