RAU16013 Integrated Inner & Outer Ring Cross Roller Bearing

Structural Features

Integral Inner and Outer Rings for Bidirectional Rotation: Unlike the RB series, the RAU series features integral inner and outer rings. Compared with the RA series, which has a split outer ring, the RAU16013 supports both inner-ring and outer-ring rotation, offering greater flexibility in equipment design. The RA series, by contrast, is primarily used in high-precision applications involving inner-ring rotation.

Ultra-Thin, Lightweight Cross-Section: The bearing features reduced inner and outer ring wall thicknesses, with an inner diameter of 160 mm, a width of only 13 mm, and an approximate weight of 0.59 kg. Its compact, lightweight design makes it suitable for precision equipment with strict space and weight limitations.

V-Shaped Raceways with Crossed Rollers: The rollers are arranged orthogonally in V-shaped raceways. This configuration allows a single bearing to simultaneously accommodate radial loads, axial loads in both directions, and moment loads, helping simplify the overall mechanical structure and reduce the need for multiple bearings.

Model Suffix Definitions

• UU: Seals on both sides. Example: RAU16013UU.
• U: Seal on one side.
• CC0: Preloaded configuration with zero clearance or negative internal clearance.
• C0: Standard clearance.
• P5 / P4 / P2: Precision grades. The smaller the number, the higher the precision.

Example Model: RAU16013UUCC0P5 indicates an RAU16013 bearing with seals on both sides, a preloaded configuration, and P5 precision grade.

Applications

The RAU16013 is designed for precision rotary assemblies where installation space and weight are strictly limited.

• Robotics: Joints and rotary supports for service robots, collaborative robots, and humanoid robots.
• Precision Inspection: Measuring equipment and optical instruments.
• Direct-Drive Torque Motors: Rotary support for direct-drive (DD) motors.
• High-Precision Rotary Tables: CNC indexing tables and rotary worktables.
• Medical Imaging Equipment: Rotary assemblies in CT scanners and other medical imaging systems.