XRSU Series Crossed Roller Slewing Bearings

XRSU Series Crossed Roller Slewing Bearings

High Rigidity Precision Bearings for Industrial Applications

The XRSU series cross roller slewing bearings are engineered for high rigidity, compact construction, and precise rotation, making them ideal for applications in industrial robotics and CNC machine tools. These bearings combine the raceways of two independent inner or outer rings into a single unit, with rollers arranged in a 90° V-cross pattern, providing exceptional load distribution and mechanical simplicity.

Weight
28kg to 77kg
Installation Size
Da: 484mm to 1164mm, Di: 344mm to 1024mm
Preload
0.01-0.05mm

Available Models & Specifications

Click on any part number to view detailed CAD drawings and download PDF specifications.

Part NumberBore (d)Outer (D)Width (B)
XRSU14.1094 mmmmmm
XRSU14.414 mmmmmm
XRSU14.544 mmmmmm
XRSU14.644 mmmmmm
XRSU14.744 mmmmmm

Why Choose XRSU Series for Precision Machinery?

The XRSU series cross roller slewing bearings are distinguished by their innovative design, which integrates the raceways into a single unit and arranges rollers in a 90° V-cross pattern. This structure allows the bearing to handle radial and axial loads, as well as tilting moments, simplifying the mechanical design. The compact and precise nature of these bearings makes them suitable for high-precision machinery, such as industrial robot joints, precision CNC rotary tables, medical equipment like CT and MRI machines, and optical instruments.

These bearings are designed to offer high load carrying capacity in a small space, ensuring high rotational accuracy. The unique layout of the crossed rollers effectively shares the load, preventing deformation under heavy loads and extending the service life of the equipment. The integrated design also simplifies the assembly and maintenance process, reducing manufacturing costs and increasing efficiency in automated production lines.

The selection of the appropriate XRSU series bearing depends on the load type and size, rotational accuracy requirements, mounting space and size, and the working environment. Considering these factors ensures the optimal performance and longevity of the bearing in precision machinery applications.

  • High load carrying capacity in a compact design
  • Exceptional rotational accuracy for high-precision machinery
  • Simplified assembly and maintenance for cost efficiency

Technical Features and Quantifiable Benefits

STEP 1

Compact Design for High Load Capacity

The XRSU series features a compact design that allows for high load carrying capacity in a small space, which is crucial for equipment where space is at a premium. This design ensures that the equipment remains compact without compromising on performance.

STEP 2

High Rigidity and Load Sharing

The unique 90° V-cross arrangement of rollers in XRSU series bearings enables effective load sharing, which prevents deformation under heavy loads. This high rigidity ensures stable performance even under shock loads, extending the service life of the equipment.

STEP 3

Simplified Mechanical Design

The integrated raceway design of the XRSU series reduces the need for multiple bearing combinations, simplifying the mechanical design. This not only lowers manufacturing costs but also facilitates easier maintenance and assembly, which is beneficial for automated production lines.

STEP 4

High Rotational Accuracy

The XRSU series is designed to provide high rotational accuracy, which is essential for precision machinery. The crossed roller arrangement ensures minimal internal play, contributing to the high precision and reliability required in applications such as industrial robot joints and precision CNC rotary tables.

FAQs about XRSU Series Bearings

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