Heavy Load RU148 Cross Roller Bearing 90x210x25mm Precision Bearing for Industrial Robots & Automation
The RU148 Cross Roller Bearing is a high-performance bearing designed for medium-to-large robotic systems and industrial automation equipment. With dimensions of 90mm inner diameter, 210mm outer diameter, and 25mm width, it provides excellent load capacity, rigidity, and rotational precision.
Its integrated inner and outer ring design simplifies installation while the crossed cylindrical roller structure enables it to support radial, axial, and moment loads simultaneously, ensuring stable performance in demanding applications.
- Model: RU148
- Size: 90x210x25mm
- Designed for higher load robotic systems
- High rigidity and stability
- Smooth and precise rotation
- High Load Capacity: Suitable for medium-to-heavy duty robotic and automation systems.
- Enhanced Rigidity: Crossed roller structure improves stiffness and reduces deformation.
- Precision Motion: Ensures accurate positioning and repeatability.
- Integrated Structure: Simplifies mounting and enhances structural stability.
- Multi-Directional Load Support: Handles radial, axial, and moment loads simultaneously.
- Durable Material: Made from heat-treated bearing steel for long service life.
| Parameter | RU148 |
|---|---|
| Model | RU148 |
| Inner Diameter (ID) | 90 mm |
| Outer Diameter (OD) | 210 mm |
| Width (H) | 25 mm |
| Type | Cross Roller Bearing |
| Structure | Integrated Inner & Outer Ring |
| Material | Bearing Steel (GCR15) |
| Preload | C0 / Custom |
| Accuracy Class | P6 / P5 optional |
| Application | Industrial Robots, Automation Equipment, Reducers |
- Industrial Robots – Provides strong support for medium-to-large robotic joints.
- Harmonic & Precision Reducers – Ensures high rigidity and accurate transmission.
- Collaborative Robots (Cobot) – Stable and smooth motion control.
- Automation Systems – Suitable for high-load precision applications.
| Model | d | D | B | C | Co | kg |
|---|---|---|---|---|---|---|
| RU28 | 10 | 52 | 8 | 2.91 | 2.43 | 0.12 |
| RU42 | 20 | 70 | 12 | 7.35 | 8.35 | 0.29 |
| - | 25 | 80 | 12 | 8.61 | 10.6 | 0.4 |
| RU66 | 35 | 95 | 15 | 17.5 | 22.3 | 0.66 |
| RU85 | 55 | 120 | 15 | 20.3 | 29.5 | 1 |
| RU124 | 80 | 165 | 22 | 33.1 | 50.9 | 2.6 |
| RU124G | 80 | 165 | 22 | 33.1 | 50.9 | 2.6 |
| RU124X | 80 | 165 | 22 | 33.1 | 50.9 | 2.6 |
| RU148 | 90 | 210 | 25 | 49.1 | 76.8 | 4.9 |
| RU148G | 90 | 210 | 25 | 49.1 | 76.8 | 4.9 |
| RU148X | 90 | 210 | 25 | 49.1 | 76.8 | 4.9 |
| RU178 | 115 | 240 | 28 | 80.3 | 135 | 6.8 |
| RU178G | 115 | 240 | 28 | 80.3 | 135 | 6.8 |
| RU178X | 115 | 240 | 28 | 80.3 | 135 | 6.8 |
| RU228 | 160 | 295 | 35 | 104 | 173 | 11.4 |
| RU228G | 160 | 295 | 35 | 104 | 173 | 11.4 |
| RU228X | 160 | 295 | 35 | 104 | 173 | 11.4 |
| RU297 | 210 | 380 | 40 | 156 | 281 | 21.3 |
| RU297G | 210 | 380 | 40 | 156 | 281 | 21.3 |
| RU297X | 210 | 380 | 40 | 156 | 281 | 21.3 |
| RU445 | 350 | 540 | 45 | 222 | 473 | 35.4 |
| RU445G | 350 | 540 | 45 | 222 | 473 | 35.4 |
| RU445X | 350 | 540 | 45 | 222 | 473 | 35.4 |
- Precision Advantage: Optimized for high-accuracy applications.
- Consistent Quality: Strict inspection ensures stable performance.
- Fast Delivery: Reliable production with global logistics.
- Customization Available: Tailored precision levels and preload options.

A1: Yes, it is designed for medium-to-large systems requiring higher load capacity and rigidity.
A2: Yes, it is widely used in harmonic and precision reducers due to its stability and accuracy.
A3: Yes, we provide customization for preload, precision grade, and materials.
Upgrade your automation system with RU148 Cross Roller Bearing.
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