30mm Shaft Bore RU52 Crossed Roller Bearing with High Rigidity and Compact

The RU52 bearing is designed for high-precision rotational motion, featuring crossed cylindrical rollers arranged at right angles to provide exceptional rigidity and load-bearing capacity. Key features include:

• Outer Diameter: 80 mm
• Bore Diameter: 30 mm
• Width:12mm
• Structure: Integrated compact design supporting radial, axial, and moment loads in any direction.
• Installation: Simplified by eliminating the need for a mounting flange.

The RU52 bearing excels in applications requiring high performance and reliability, offering superior stiffness and load capacity while simplifying installation.

1. High Precision: Achieves P4 and P2 precision levels, ensuring exceptional rotational accuracy and stability.
2. High Rigidity: Features preloaded design to enhance structural stiffness and performance.
3. High Load Capacity: Capable of supporting bi-directional axial loads, radial loads, and tilting moments, making it suitable for complex loading conditions.
4. Compact Design: Its small size helps save valuable space in machine tools without compromising performance.

The RU52 cross roller bearing is widely used in precision machinery due to its high rigidity, high accuracy, and compact design. Below are its main application areas and specific use cases:

• Joint Sections: RU series bearings are often used in robot joints and rotating components because they can withstand multi-directional loads (radial, axial, overturning moment) while providing stable rotational accuracy. For example, they are ideal for parts like the elbow and wrist of robotic arms that require high flexibility and precise positioning.
• Reducers and Transmission Systems: Suitable for core components such as harmonic reducers and RV reducers, ensuring smooth and reliable robot movements.

• Rotary Tables: Used in indexing tables or turntables of CNC machines and five-axis machining centers, providing high rigidity support and precise indexing capabilities.
• High-Speed Spindles: Applicable to spindle systems in vertical boring machines and grinding machines, meeting the demands of high-speed rotation and heavy-duty machining.

• Imaging Diagnostic Instruments: Such as the rotating components in CT scanners and MRI machines, which require high cleanliness, low friction, and high stability—cross roller bearings meet these precision requirements.
• Surgical Robots: Provide precise control in the joint sections of minimally invasive surgical instruments.

• Semiconductor Manufacturing Equipment: Used in precision rotary platforms of lithography machines and wafer processing equipment, ensuring high-precision positioning.
• Optical Instruments: Such as the rotating mounts of telescopes and microscopes, requiring low vibration and high repeatability.

• Aerospace: Used in components like satellite antennas and UAV gimbals, where they must withstand extreme environments while maintaining stable operation.
• New Energy Equipment: Such as the pitch control systems of wind turbines, withstanding complex loads and extending maintenance cycles.

The RU series bearings feature provided mounting holes, eliminating the need for a presser flange or housing. Additionally, with an integrated inner/outer ring structure and equipped with washers, their performance is minimally impacted by the mounting procedure. This ensures stable rotation accuracy and torque.

This model supports both inner-ring rotation and outer-ring rotation, offering high flexibility and adaptability.

If you need more detailed information, feel free to ask!