Product Overview
- The RB45025 crossed roller bearing is designed for large-diameter precision rotation where stability, stiffness, and low-torque motion are essential.
- This model features an integrated inner ring with a split outer ring, allowing direct mounting without compromising rigidity.
- Its 450 mm bore size and compact 25 mm section make it especially suitable for equipment that requires space-efficient construction while maintaining high positioning accuracy under combined loads.
Technical Specifications – RB45025
| Inner Diameter (d) | 450 mm |
| Outer Diameter (D) | 500 mm |
| Roller Pitch Diameter (Dpw) | 476.6 mm |
| Width (B) | 25 mm |
| Chamfer (rmin) | 1 |
| Shoulder Size (ds) | 464 |
| Shoulder Size (Dh) | 484 |
| Basic Load Rating (Radial) Cr | 61.7 kN |
| Basic Load Rating (Radial) Cor | 182 kN |
| weight | 6.6 kg |
Check More Type of RB Crossed Roller Bearing
RB45025 Crossed Roller Bearing – FAQ
Is the RB45025 suitable for continuous or intermittent rotation?
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Yes. The bearing performs reliably in both continuous and stop-and-start motion. Its crossed-roller layout stabilizes rotation even when the direction changes frequently.
Can the RB45025 handle combined loads?
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Absolutely. The 90° crossed-roller structure allows the bearing to support radial, axial, and moment loads simultaneously, making it ideal for precision platforms and robotic systems.
What are the typical signs that indicate the bearing needs replacement?
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Rising torque, uneven rotation, metallic noise, or visible rolling-surface wear are the most common warning signs. Regular monitoring helps avoid unexpected downtime.
Is the RB45025 compatible with existing rotary table designs?
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Yes. Its standardized dimensions match common rotary platform layouts. Most replacements only require checking mounting tolerances and ensuring consistent preload settings.
Can the bearing operate in cleanroom environments?
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With low-particle lubrication and optional seals, the RB45025 adapts well to semiconductor, medical, and optical cleanroom requirements.
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