RU178X Precision Crossed Roller Bearing 115x240x28mm for CNC & Robot Joints
Price:
$99- $128
MOQ:
5pcs
Delivery Time:
3 working days after received your payment
Brand:
GQZ
Product Description
RU178X Precision Crossed Roller Bearing 115x240x28mm for CNC & Robot Joints
Product Overview
The RU178X Crossed Roller Bearing is a high-rigidity, integrated-ring solution engineered for precision rotary motion. Featuring a specialized "X" type mounting hole configuration, this bearing allows for direct bolting to the mounting surface, eliminating the need for a press-fit housing. It is the industry standard for CNC rotary tables and industrial robotic joints requiring high tilting moment resistance.
Key Features
- Integrated Mounting: Bolt-on design eliminates the need for housings or flanges.
- High Rotation Accuracy: P2/P4 precision levels ensure minimal runout and stable positioning.
- Dual-Direction Load: Handles radial, axial, and moment loads in a single compact unit.
- Superior Rigidity: Crossed roller geometry provides 3-4x the stiffness of traditional ball bearings.
- Plug-and-Play: Optimized for fast installation and high structural integrity.
Technical Specifications
| Specification | Data (RU178X) |
|---|---|
| Inner Diameter (d) | 115 mm |
| Outer Diameter (D) | 240 mm |
| Width (B) | 28 mm |
| Dynamic Load Rating ($C$) | 80.3 kN |
| Static Load Rating ($C_0$) | 135 kN |
| Inner Ring Mounting (PCD 139) | 12-M8 Tapped Holes |
| Outer Ring Mounting (PCD 217) | 12-φ9 Through Holes (φ14 Counterbore) |
| Mass (Weight) | 6.8 kg |
| Precision Class | P5 / P4 / P2 |
| Material | GCr15 High-Carbon Chromium Steel |
Applications
- Industrial Robots – Supports heavy-load joints with precise rotation.
- Automation & CNC Systems – Ensures stability under high torque and dynamic loads.
- Precision Rotary Platforms – Ideal for positioning and indexing equipment.
- Heavy-Duty Machinery – Suitable for large-scale industrial 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 |
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
1. What is the difference between RU178, RU178G, and RU178X?
While dimensions are identical, the mounting holes differ: RU178X features tapped holes on the inner ring (12-M8), making it easier to bolt directly from the mounting surface compared to the through-hole versions.
2. Can this bearing handle high tilting moments?
Yes. The 90° V-groove raceway allows the rollers to handle complex tilting moments with much higher stability than standard ball bearings.
3. Do you provide 3D CAD files for integration?
Yes. GQZ provides STEP and IGES files for the RU178X to help engineers quickly integrate the bearing into their mechanical designs.
Upgrade your industrial system with RU178X Crossed Roller Ring Bearing.
Contact us today for pricing, customization, or technical support!
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Wuxi Guangqiang Bearing Trade Co.,Ltd
Location
No. 650 North Xingyuan Road, Beitang District, Wuxi, China.
Contact Person
Mike Zhang