Crossed Roller Bearings for Robot Joints

Application

Application Challenges

Compact Joint Structure

Robot joints require high load capacity within limited axial and radial installation space.

Tilting Moment Loads

Joint arms create significant moment loads during acceleration, deceleration and payload movement.

Positioning Accuracy

Repeatability depends on low bearing runout, stable preload and controlled deformation.

Torque & Smooth Motion

Joint drive systems require smooth rotation with limited torque fluctuation.

Repeated Duty Cycles

Robot joints operate through frequent reversing and acceleration cycles.

Products

Recommended Crossed Roller Bearing Series

HRAU Series

Compact, lightweight structure for small robot wrist and precision joint applications

HRU Series

Integrated inner and outer rings with mounting holes for easy robot joint installation.

HCRBH Series
High rigidity and stable accuracy for heavy-duty robot axes.

HRE Series

Compact inner-ring rotation type for robot joints and rotary modules.

HRB Series

Versatile crossed roller bearing for high-rigidity joint support.

HSX Series

Compact separable structure for limited installation space.

HXSU Series

Integrated mounting-hole type for direct installation into rotary joints.

Selection

Selection Information

01

Information Customers Can Provide

Robot type and joint position
Payload and joint arm length
Radial load, axial load and tilting moment
Operating speed and acceleration
Required positioning accuracy and runout
Mounting space and bolt-hole arrangement
Preload, lubrication and duty cycle
2D/3D drawing, bearing number and quantity

02

CHG Assessable Content

Suitable crossed roller bearing series
Bearing dimensions and integrated ring structure
Radial, axial and tilting moment load capacity
Precision class and runout direction
Preload, rotational torque and rigidity
Inner-ring or outer-ring rotation
Mounting-hole and adjacent structure requirements
Lubrication, sealing, quotation and delivery

ADVANTAGES

Why Choose CHG

Complete Series Coverage

CHG provides RAU, RU, CRBH, RE, RB, SX and XSU crossed roller bearing solutions for different installation structures.

Application-based Selection

Bearing series can be reviewed according to radial, axial and tilting moment loads, rigidity, runout, speed and mounting space.

Custom Manufacturing

Custom support by bearing number, dimensions, 2D/3D drawing, mounting-hole arrangement, preload and special requirements.

Quality & Inspection Support

Material certificates, dimensional inspection, precision inspection, rotational torque records and product photos can be provided according to order requirements.

Precision Rotary Tables

Automation Rotary Platforms

High-rigidity Rotary Mechanisms

Medical Equipment

CONTACT US

Talk to an expert

Share your requirements and we’ll help you find the right solution for your business.

Get a quick quote

We typically confirm within 24 hours.

FAQ

Crossed Roller Bearings for Robot Joints FAQ

Please provide the application, bearing number or dimensions, radial load, axial load, tilting moment, speed, runout or accuracy requirement, mounting structure, quantity and drawing if available.

CHG provides RAU, RU, CRBH, RE, RB, SX and XSU series crossed roller bearings.

Yes. Custom solutions can be reviewed according to 2D/3D drawings, bearing numbers, mounting-hole patterns, dimensions, preload and application conditions.

Integrated mounting-hole types simplify assembly and improve rigidity, while separable structures may suit compact or existing housings. Final selection depends on ring rotation, mounting and load requirements.

Dimensional inspection, runout inspection, rotational torque or preload records, material certificates and product photos can be provided according to order requirements.

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