ROBOT BEARING RU42 RU66 RU85 RU124X RU148G RU228 RU297 RU445 P5 Precision Cross Roller Bearing for Robotics

The RU Series Precision Cross Roller Bearings are specially designed for industrial robotics and high-precision automation systems. Models including RU42, RU66, RU85, RU124X, RU148G, RU228, RU297, and RU445 provide high rigidity, compact structure, and superior rotational accuracy.

RU series bearings feature an integrated inner and outer ring structure with mounting holes, simplifying installation and improving alignment precision. With crossed cylindrical rollers arranged at 90°, these bearings can support radial loads, axial loads, and moment loads simultaneously — making them ideal for robotic arm joints and rotary positioning systems.

The P5 precision grade ensures stable rotation and precise motion control in demanding robotic applications.

• Crossed roller design for multi-directional load capacity
• Integrated inner & outer ring structure
• High rigidity and compact design
• P5 precision grade for accurate positioning
• Smooth rotation and low friction
• Easy installation with mounting holes
• Suitable for high-speed and high-torque robotic systems

(Custom sizes, preload classes, and sealing options available.)

• Product Type: Cross Roller Bearing
• Series: RU Series
• Precision Grade: P5
• Structure: Crossed cylindrical rollers
• Material: High-quality bearing steel
• Preload: Light / Medium / Heavy preload optional
• Sealing: Open or sealed type available
• Application: Industrial robotics and automation

RU Series cross roller bearings are widely used in:

• Industrial robot arm joints
• Robot wrist and elbow rotation
• Harmonic and RV reducers
• CNC rotary tables
• Semiconductor and precision assembly equipment
• High-accuracy positioning platforms

At GQZ Bearing, we provide precision robot bearings designed for stability and long-term industrial performance:

• Strict dimensional and tolerance control
• Stable preload adjustment capability
• Consistent batch production quality
• OEM and private label support
• Export experience in robotics and automation sectors

• Anti-rust vacuum packaging
• Industrial export carton
• OEM packaging support
• Flexible MOQ for project-based purchasing
• Global shipping via air and sea

The RU series uses a crossed roller structure that supports radial, axial, and moment loads simultaneously. Its integrated ring design improves rigidity and installation accuracy, making it ideal for robot joints and precision motion systems.

P5 precision provides tighter dimensional tolerances and improved rotational accuracy compared to standard grades, ensuring stable and precise robotic positioning.

Yes. We offer customized preload levels, sealing options, marking, and packaging according to your project requirements.

Looking for a reliable supplier of RU42, RU66, RU85, RU124X, RU148G, RU228, RU297, RU445 robot bearings?

Contact GQZ Bearing for pricing, technical drawings, or samples.