CRBS Series Thin-Section Crossed Roller Bearings (Ultra-thin-wall type; integrated inner and outer rings; outer ring with plug)

1. General Information

Interchangeability: Can serve as a direct replacement for the IKO CRBS series crossed roller bearings.

Core attributes: High-precision bearings featuring a crossed roller design and ultra-thin-wall characteristics.

2. Structural Overview

• Ultra-thin-wall type: The extremely thin wall significantly reduces the overall bearing size, making it ideal for space-constrained applications.

• Integrated inner and outer ring design: The inner and outer rings are machined as a single-piece structure, which improves installation accuracy and enhances overall rigidity.

• Outer ring with plug: Select models feature a plug in the outer ring to secure the rollers, preventing them from dislodging during transport or installation while maintaining correct roller alignment for high-precision operation.

3. Product Features

• High precision and high rigidity: The crossed arrangement of rollers handles multi-directional loads, providing high rigidity and running accuracy.

• Compact design: The ultra-thin-wall structure saves space and meets the requirements for compact equipment design.

• Simplified structure: The one-piece inner and outer rings reduce the number of components requiring alignment during installation, streamlining the installation process.

4. Application Fields

Thanks to their high precision, high rigidity, and compact design, the CRBS series is widely used in the following areas:

• Robotics: Robotic joints, rotating parts

• Medical devices: Medical diagnostic equipment, surgical robots, medical imaging equipment

• Precision instruments: Optical equipment, measuring instruments, laboratory equipment

• Mechanical arms: Robotic arms used in automated production lines, assembly lines, and R&D

• Aerospace: Satellite solar panel deployment mechanisms, space station robotic arms, etc. (meeting lightweight and high-performance requirements)

• Electronic manufacturing equipment: Positioning and guidance systems for precision assembly and production equipment

5. Installation Steps

Preparations:

• Clean the bearing mounting surfaces to ensure they are free from dust, oil, and contaminants.

• Check the dimensional accuracy, form accuracy, and positional accuracy of the shaft and housing bore to confirm compliance with specifications.

Inspect bearings and accessories:

• Check the bearing and accessories (such as seals and locking devices) for transport damage or defects.

• Verify that the bearing model and specifications match the installation location.

Install the bearing:

• Use professional tools (such as a plastic or rubber mallet) and gently tap on the solid rings (not the rolling elements) to install the bearing. Avoid striking the rolling elements directly.

• Where conditions permit, heating the bearing or cooling the shaft may be used to facilitate installation by taking advantage of thermal expansion and contraction.

• Ensure the bearing is correctly positioned on the shaft or within the housing, maintaining concentricity and parallelism of the inner and outer rings.

Verify installation:

• Check the rotation of the bearing to ensure there is no abnormal friction or resistance.

• Verify installation accuracy (concentricity, tilt) to ensure it meets design requirements.

6. Installation Precautions

• Wear gloves when handling the bearing to prevent contamination from fingerprints.

• Avoid applying excessive force directly to the bearing, especially to the rolling elements and cage sections.

• For models with a plug, ensure the plug is properly installed to maintain roller alignment.

• Always follow the manufacturer's instruction manual, as specific installation requirements may vary by model.

Proper installation is essential to ensuring bearing performance and extending service life. For further guidance, refer to the installation guide provided by Tongkang Precision Bearing or contact the manufacturer for technical support.