RB50050 for Large-Diameter Rotary Assemblies
The RB50050 crossed roller bearing is designed around a 500 mm bore, making it suitable for rotary assemblies with a large central opening. It can be integrated into machinery where shafts, housings, and other structural components surround the rotating center.
Its large-format design supports rotary mechanisms practically without occupying unnecessary space outside the main bearing interface, making the RB50050 suitable for large mechanical systems requiring a dedicated bearing arrangement around substantial rotating structures.
Load Distribution and Running Characteristics
- The rollers are arranged alternately at right angles, creating multiple lines of contact between the inner and outer rings. This arrangement allows radial, axial, and moment forces to be accommodated within the same bearing rather than relying on separate bearing elements for each load direction.
- The result is a bearing arrangement that maintains consistent contact as the rotary assembly moves. For the RB50050, this configuration is well suited to mechanisms where changing loads and rotational movement occur together.
Technical Specifications
| Model | RB50050 |
| Inner Diameter (d) | 500 mm |
| Outer Diameter (D) | 625 mm |
| Roller Pitch Diameter (Dpw) | 561.6mm |
| Width (B) | 50 mm |
| Chamfer (rmin) | 2.5 |
| Shoulder Size (ds) | 536 |
| Shoulder Size (Dh) | 587 |
| Basic Load Rating (Radial) Cr | 267 kN |
| Basic Load Rating (Radial) Cor | 653 kN |
| weight | 41.7 kg |
| Bearing Type | Crossed cylindrical roller bearing |
| Structure | Integrated inner ring / separable outer ring |
| Rolling Element | Cylindrical rollers (crossed arrangement) |
| Lubrication | Grease or oil |
| Accuracy Class | P5 / P4 / P2 |
| Surface Treatment | Anti-rust coating / special plating |
Applications for Large Rotary Mechanisms
Selection & Service Considerations
When selecting the RB50050 crossed roller bearing, consider the shaft and housing arrangement, operating conditions, and available installation space together. Proper matching helps ensure reliable operation within the equipment.
During service, suitable lubrication and regular checks can help maintain consistent running conditions. Any unusual noise or changes in rotation should be inspected promptly.
Crossed Roller Bearing FAQs
What types of motion suit the RB50050?
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The RB50050 is suitable for rotary and positioning movements in machinery where the bearing forms part of the main rotating assembly. It can be considered for continuous rotation as well as controlled indexing or positioning, depending on the equipment design.
Can the RB50050 handle combined loading?
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Yes. The crossed roller arrangement allows the bearing to accommodate radial, axial, and moment loads within one bearing assembly. The actual load capacity should be evaluated according to the operating conditions and required service performance.
How is the RB50050 matched to surrounding components?
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Selection should consider the mating shaft or housing, available space, operating conditions, and required bearing arrangement. The surrounding components should be designed to provide suitable support for the bearing during operation.
Can the RB50050 be used in automated equipment?
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Yes. The RB50050 can be considered for automated machinery that incorporates large rotary or positioning mechanisms, including robotic and industrial equipment. Its suitability depends on the required movement, loading, and machine configuration.
What information is needed for RB50050 selection?
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Useful selection information includes the required bore and outside dimensions, load conditions, rotational speed, movement type, operating environment, and accuracy requirements. These details help determine the appropriate bearing configuration for the equipment.
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