VLU200744-RL3 Four Point Contact Slewing Ring Light Series 20, Without Gear Teeth
The VLU200744-RL3 Flanged-type slewing bearings are widely used in Scenarios that require equipment weight, installation space, and rotational flexibility, but have medium or low load-bearing requirements, such as industrial robots (wrist joints), machine tools (tool magazines, turntables), automated equipment (robotic arms), medical equipment (surgical robots), packaging equipment, and aerospace (antenna drive mechanisms), among other fields.
The VLU200744-RL3 bearing is a Four point contact bearing, slewing ring light series 20, without gear teeth with an inner diameter of 634 mm , an outer diameter of 848 mm, a width of 56 mm. It typically uses P5, P6, P0 grade precision tolerances and 50Mn,42CrMo rings, GCr15 rolling mlement. It primarily bears axial, radial and tilting moment loads, Its dynamic radial rated load is approximately 155000 N, its static radial rated load is approximately 197000 N. Its dynamic axial rated load is approximately 171000 N, its static axial rated load is approximately 530000 N. sealed on both sides type, NBR (Nitrile Butadiene Rubber). together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
VLU200744-RL3 bearings ( 634 mm x 848 mm x 56 mm) have the advantages of Lightweight, compact, flexible in operation, with good load-bearing capacity, and easy to install, and are therefore widely used in the Industrial robots, medical equipment (CT scanner), packaging machinery.
| Part Number | VLU200744-RL3 |
| Bearing Type | Four point contact bearing, slewing ring light series 20, without gear teeth |
| Series | VLU20 |
| Interchangeable | INA VLU200744-RL3 |
| Load direction | axial, radial and tilting moment loads |
| Lubrication nipples | 4 taper type lubrication nipples, DIN 71412-A S8x1,arranged evenly about the circumference, uniform |
| Seal type | sealed on both sides |
| Seal Material | NBR (Nitrile Butadiene Rubber) |
| Rows NO. | One |
| m Weight [kg] | 41.8 |
| Performance Data | |
| Ca Dynamic Axial | 171000 N | 171.000 KN |
| C0a Static Axial | 530000 N | 530.000 KN |
| Cr Radial Dynamic | 155000 N | 155.000 KN |
| C0r Radial Static | 197000 N | 197.000 KN |
| Operating temperature - T(min) [°C] | -25 |
| Operating temperature - T(max) [°C] | 80 |
| Dimensions | |
| Da Φ Outside Diameter [mm] | 848 |
| Da Tolerance [mm] | -0.6 |
| di φ Bore Diameter [mm] | 634 |
| di Tolerance [mm] | +0.6 |
| Di Inner diameter outer ring [mm] | 745.5 |
| Di Tolerance [mm] | +0.6 |
| da Outside diameter inner ring [mm] | 742.5 |
| da Tolerance [mm] | -0.6 |
| Height - H [mm] | 56 |
| T Length centering inner ring [mm] | 12 |
| t Length centering inner ring [mm] | 12 |
| ha Width outer ring [mm] | 44.5 |
| hA Ring cross section [mm] | 20 |
| hi Height of inner ring [mm] | 44.5 |
| Fixing holes | |
| La Pitchcircle diameter fixing holes outer ring [mm] | 820 |
| na Number of fixing holes in outer ring | 12 |
| Li Pitchcircle diameter fixing holes inner ring [mm] | 662 |
| ni Number of fixing holes in inner ring | 16 |
| dB Fixing bore [mm] | 18 |
| Fr zul Max Radial load fixing screws | 93600 N | 93.600 KN |
| Gearing | |
| Gear teeth type | without |
| Designation Breakdown | |
| Radial internal clearance | RL3 = Radial clearance 0.25 to 0.5 axial tilting clearance 0.4 to 0.7 |
The VLU200744-RL3 Flange-type slewing bearings mainly consist of an inner or outer ring with a flange, another ring, rolling elements (steel balls or rollers), spacers, and sealing devices. The flange rings have mounting holes for direct bolt connection.
The flange structure of flange-type slewing bearings simplifies the installation process, eliminating the need for additional mounting seats, resulting in convenient assembly and precise positioning. They offer high overall rigidity, capable of simultaneously withstanding axial loads, radial loads, and overturning moments, while their compact structure saves space.
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