RU297G Ultra Precision Cross Roller Slewing Bearing 210x380x40mm for High Accuracy Robotics
RU297G Ultra Precision Cross Roller Slewing Bearing 210x380x40mm | Low Runout Bearing for High Accuracy Robotics & Rotary Systems
Product Overview
The RU297G Cross Roller Slewing Bearing is a high-precision upgrade of the RU297 series, engineered for large-scale systems that demand exceptional accuracy and smooth rotational performance. With dimensions of 210mm inner diameter, 380mm outer diameter, and 40mm width, it combines high rigidity with ultra-precise motion control.
Compared to standard models, RU297G offers tighter tolerances, reduced runout, and improved rotational consistency, making it ideal for high-end robotics, precision rotary platforms, and advanced automation systems.
- Model: RU297G
- Size: 210x380x40mm
- Ultra high precision with low runout
- Smooth and stable rotation performance
- Designed for high-end industrial applications
Key Features
- Ultra High Precision: Tight manufacturing tolerances ensure accurate and repeatable motion.
- Low Runout Performance: Reduced vibration and deviation for stable rotation.
- High Rigidity Structure: Maintains stiffness under heavy loads.
- Smooth Motion Control: Optimized raceways minimize friction and improve consistency.
- Integrated Ring Design: Simplifies installation and enhances structural integrity.
- Long Service Life: Made from heat-treated GCR15 bearing steel for durability.
Technical Specifications
| Parameter | RU297G |
|---|---|
| Model | RU297G |
| Inner Diameter (ID) | 210 mm |
| Outer Diameter (OD) | 380 mm |
| Width (H) | 40 mm |
| Type | Cross Roller Slewing Bearing |
| Structure | Integrated Ring, Crossed Cylindrical Rollers |
| Material | Bearing Steel (GCR15) |
| Preload | C0 / Precision Preload Optional |
| Accuracy Class | P5 / Higher optional |
| Application | Precision Robotics, Rotary Tables, Automation Systems |
Applications
- High-End Industrial Robots – Enables precise joint control and repeatability.
- Precision Rotary Tables – Ensures accurate indexing and positioning.
- CNC & Automation Equipment – Ideal for high-accuracy motion systems.
- Advanced Robotics Systems – Suitable for applications requiring ultra-smooth motion.
| 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 |
Why Choose GQZ Bearing?
- Industrial-Grade Quality: Designed for demanding heavy-load environments.
- Reliable Delivery: Efficient production and global logistics support.
- Technical Expertise: Professional guidance for selection and system integration.
- Customization Available: OEM/ODM solutions tailored to your project needs.
FAQ
Q1: What does the “G" version mean in RU297G?
A1: It indicates a higher precision grade with lower runout and improved rotational accuracy.
Q2: Is RU297G suitable for precision rotary tables?
A2: Yes, it is ideal for applications requiring high positioning accuracy and smooth motion.
Q3: Can you provide higher precision than P5?
A3: Yes, we support customized higher precision grades upon request.
Achieve superior motion accuracy with RU297G Cross Roller Slewing Bearing.
Contact us today for pricing, customization, or technical consultation!
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.


