Highlighted Features
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High Rotational Accuracy
- Precision-ground raceways and consistent preload keep runout minimal, ensuring stable positioning.
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Enhanced Rigidity for Large Platforms
- Crossed roller arrangement supports radial, axial, and moment loads simultaneously with minimal elastic deformation.
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Compact Integrated Structure
- Built-in rings reduce installation misalignment and simplify mounting, especially for automation and inspection systems.
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Stable Torque Characteristics
- Smooth, predictable torque output helps maintain uniform motion across long cycles of operation.
Technical Specifications
| Model | RE40040 |
| Inner Diameter (d) | 400 mm |
| Outer Diameter (D) | 510 mm |
| Roller Pitch Diameter (Dpw) | 453.4 mm |
| Width | 40 mm |
| Chamfer (rmin) | 2.5 |
| Shoulder Size (ds) | 428 |
| Shoulder Size (Dh) | 479 |
| Basic Load Rating (Radial) Cr | 241 kN |
| Basic Load Rating (Radial) Cor | 531 kN |
| weight | 23.5 kg |
Check More Type of RB Crossed Roller Bearing
RE40040 Crossed Roller Bearing – FAQ
Can this bearing be paired with servo-driven rotary tables?
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Yes. The RE40040 is frequently integrated into servo-driven platforms because its stiffness and smooth torque curve support precise motion control.
Can the RE40040 be supplied with integrated seals?
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Yes. Sealed versions are available to protect internal components from dust or light contaminants, especially for automation or outdoor equipment.
How does preload influence vibration and smoothness?
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Proper preload stabilizes roller contact and reduces micro-movement. Excessive preload increases friction and heat, while insufficient preload can cause chatter or inconsistent motion.
Can vibration be caused by mounting surface imperfections?
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Yes. Even small irregularities or uneven surface hardness can introduce micro-vibrations and runout issues. Precision-ground mounting faces are recommended.
What material is the RE40040 typically made from?
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The bearing is generally produced from high-grade bearing steel to ensure stability, wear resistance, and long-term dimensional accuracy. Stainless or coated variants can be supplied on request.
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