RB1250110 Crossed Roller Bearing
The RB1250110 crossed roller bearing is a large-dimension bearing within the RB series, designed to provide exceptional rigidity and precision for heavy-duty rotary applications. Its crossed roller structure features cylindrical rollers arranged alternately at right angles between the inner and outer rings, enabling it to support radial, axial, and moment loads simultaneously.
Technical Specifications
| Bearing Model | RB1250110 |
| Inner Diameter (d) | 1250 mm |
| Outer Diameter (D) | 1500 mm |
| Roller Pitch Diameter (Dpw) | 1365.8mm |
| Width (B) | 110mm |
| Chamfer (rmin) | 5 |
| Shoulder Size (ds) | 1308 |
| Shoulder Size (Dh) | 1423 |
| Basic Load Rating (Radial) Cr | 1350 |
| Basic Load Rating (Radial) Cor | 3970 |
| weight (kg) | 440 |
| Roller Arrangement | Crossed cylindrical rollers, 90° alternating |
| Rotational Accuracy | P4 / P5 (optional higher grades available) |
| Material | High-quality bearing steel (optional stainless steel) |
| Preload | Light / Medium / Heavy (customizable) |
| Lubrication | Lithium-based grease or custom lubrication available |
RB1250110 Crossed Roller Bearing – FAQ
What makes the RB1250110 Crossed Roller Bearing different from other RB series models?
The RB1250110 stands out for its larger bore size and higher rigidity. It is designed for applications that demand precise rotation under heavy loads, unlike smaller RB models which focus on compact design and lightweight performance..
What is the expected service life of the RB1250110 Crossed Roller Bearing?
With proper installation, lubrication, and preload adjustment, the RB1250110 can operate reliably for tens of thousands of hours, depending on the load conditions and operating speed. Regular inspection and lubrication are key to maximizing its lifespan.
How should the RB1250110 be stored and handled before installation?
Store the bearing in a dry, vibration-free environment at room temperature. Avoid touching the raceways with bare hands to prevent corrosion. Use protective gloves and clean mounting tools during installation.
What are the standard accuracy grades available?
The RB1250110 can be manufactured to P5, P4, or P2 precision levels. For most industrial uses, P5 offers excellent balance between cost and accuracy, while P4 and P2 are used in high-precision applications like robotics or optics.
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