8mm Shaft Bore Crossed Roller Bearing with High Rigidity and Compact Design for Precision Robot Applications

The RJ40 bearing is designed for high-precision rotational motion, featuring crossed cylindrical rollers arranged at right angles to provide exceptional rigidity and load-bearing capacity.

This integrated compact design supports radial, axial, and moment loads in any direction. Installation is simplified by eliminating the need for a mounting flange.

• High Precision: Achieves P4 and P2 precision levels, ensuring exceptional rotational accuracy and stability
• High Rigidity: Features preloaded design to enhance structural stiffness and performance
• High Load Capacity: Capable of supporting bi-directional axial loads, radial loads, and tilting moments
• Compact Design: Small size helps save valuable space in machine tools without compromising performance

The RU series crossed roller bearings are widely used in fields with stringent requirements for space and performance, thanks to their high rigidity, precision, and compact design.

• Industrial Robots: Joints and rotating parts in industrial and collaborative robots
• Machine Tools: CNC rotary tables and spindle systems in machining centers
• Medical Equipment: CT scanners, MRI machines, and precision instruments
• Automation Systems: Robotic arms, rotary tables, and semiconductor manufacturing equipment
• Aerospace: Satellite antenna mechanisms, radar rotating bases, and drone gimbals

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

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

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