RB25030 Crossed Roller Bearing
- Its integrated outer ring structure minimizes distortion and ensures consistent preload, delivering smooth running even under combined radial, axial, and moment loads.
- The optimized roller arrangement helps maintain high stiffness without adding unnecessary weight, making the RB25030 an efficient choice for systems that require precision repeatability and long-term durability.
Low Friction & Smooth Rotation
Precision-ground raceways reduce running torque.
High Stiffness Design
Large-size rollers and a single-piece outer ring enhance structural stability.
Stable Preload Control
Maintains accuracy during high-duty cycles or temperature variations.
Reliable Load Handling
Supports radial, axial, and overturning loads simultaneously.
Technical Parameters – RB25030
| Inner Diameter (d) | 250 mm |
| Outer Diameter (D) | 330 mm |
| Roller Pitch Diameter (Dpw) | 287.5 mm |
| Width (B) | 30 mm |
| Chamfer (rmin) | 2.5 |
| Shoulder Size (ds) | 269 |
| Shoulder Size (Dh) | 306 |
| Basic Load Rating (Radial) Cr | 126 kN |
| Basic Load Rating (Radial) Cor | 244 kN |
| Weight | 8.1 kg |
Check More Type of RB Crossed Roller Bearing
RB25030 Crossed Roller Bearing – FAQ
Can the cage of the RB25030 bearing be customized?
Yes. The RB25030 can be produced with different cage materials such as brass, resin, or steel depending on load, speed, and temperature requirements. Custom cage pockets and surface finishes are also available to improve running stability or reduce friction.
Can cage wear be detected early?
Yes. Early signs include a slight increase in torque, intermittent noise, or reduced repeatability. Scheduled inspections and oil analysis help identify cage degradation before failure occurs.
Can the RB25030 be ordered with a split or reinforced cage design?
Yes. Split cages and reinforced structural cages are available for applications where the rollers require stronger retention, tighter preload, or improved heat dissipation.
What should I check if the bearing loses accuracy over time?
Inspect for cage deformation, insufficient lubrication, contamination, or preload loss. These factors commonly influence repeatability and running smoothness.
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