CRBT605AC1P5 Open Type Ultra-thin Crossed Roller Bearing

Model Suffix Explanation

• CRBT: Ultra-thin crossed roller bearing series.
• 605: Size code, corresponding to a 60 mm bore diameter.
• A: Separator type, with separators positioned between the rollers.
• C1: Radial internal clearance class, representing a specified clearance range.
• P5: Precision grade, indicating P5 precision. P4 and P2 precision grades are also available.
  Note: The standard CRBT605 model features an open design without seals. The separator design helps reduce frictional torque, enabling smoother and more flexible rotary motion.
  
  

Structural Features

Integrated Inner and Outer Ring Design: The inner and outer rings feature an integrated structure, accommodating both inner-ring rotation and outer-ring rotation to suit different installation configurations.
Ultra-Thin and Lightweight Construction: The bearing has a cross-sectional height of only 5.5 mm and a width of just 5 mm. Compared with the conventional lightweight CRBS series, its thickness is approximately 69%, cross-sectional area is approximately 43%, and weight is approximately 38% of the corresponding reference values, significantly reducing weight and saving installation space.
90° Crossed Roller Arrangement: The rollers are arranged orthogonally in a V-shaped raceway. A single bearing can simultaneously accommodate radial loads, bidirectional axial loads, and overturning moments, simplifying the overall rotary mechanism.
Roller Separation by Spacers: Separators are positioned between the rollers. Compared with a full-complement roller design, this configuration reduces frictional torque and allows higher operating speeds.
Design Without Mounting Holes: The bearing itself has no mounting holes. Axial retention must be achieved using an end cover or a clamping plate.

Applications

This bearing is suitable for precision rotary components subject to stringent weight and installation-space requirements.

• Robotics: Rotary joints and support components in service robots, collaborative robots, and humanoid robots.
• Precision Rotary Tables: Compact indexing tables and precision rotary worktables.
• Medical Equipment: Rotary components in precision medical instruments.
• Radar and Communications: Rotary support components for pan-tilt positioning systems.
• Exoskeleton Robots: Joint rotation mechanisms.