XRSU series cross roller slewing bearings are innovative, high-precision crossed roller bearings designed for applications requiring high rigidity, compact construction and precise rotation.
| Cross roller slewing bearing（XRSU Series) | ||||||||||||||
| Light series Gearless type | ||||||||||||||
| Bearing model | Weight | installation size | running accuracy | internal play | corresponding to the model | |||||||||
| Kg | Da | di | La | na/ni | Li | Di | da | A | B | C | D | Preload | INA | |
| XRSU14.414 | 28 | 484 | 344 | 460 | 24 | 368 | 415 | 413 | 0.04 | 0.04 | 0.06 | 0.06 | 0.01-0.03 | XSU140414 |
| XRSU14.544 | 38 | 614 | 474 | 590 | 32 | 498 | 545 | 543 | 0.04 | 0.04 | 0.07 | 0.06 | 0.01-0.03 | XSU140544 |
| XRSU14.644 | 44 | 714 | 574 | 690 | 36 | 598 | 645 | 643 | 0.05 | 0.05 | 0.08 | 0.07 | 0.01-0.04 | XSU140644 |
| XRSU14.744 | 52 | 814 | 674 | 790 | 40 | 698 | 745 | 743 | 0.05 | 0.05 | 0.09 | 0.08 | 0.01-0.04 | XSU140744 |
| XRSU14.844 | 60 | 914 | 774 | 890 | 40 | 798 | 845 | 843 | 0.06 | 0.06 | 0.09 | 0.08 | 0.01-0.04 | XSU140844 |
| XRSU14.944 | 67 | 1014 | 874 | 990 | 44 | 898 | 945 | 943 | 0.06 | 0.06 | 0.11 | 0.09 | 0.01-0.05 | XSU140944 |
| XRSU14.1094 | 77 | 1164 | 1024 | 1140 | 48 | 1048 | 1095 | 1093 | 0.07 | 0.07 | 0.11 | 0.11 | 0.01-0.05 | XSU1401094 |
Compared with conventional bearings, the design of XRSU series cross roller slewing bearings integrates the raceways of two independent inner or outer rings into a single unit, with the rollers arranged in a 90° V-cross arrangement and separated by an isolation block. This unique structure enables it to withstand radial and axial loads as well as tilting moments at the same time, thus greatly simplifying the mechanical design.
1. Compactness and High Precision
The greatest feature of XRSU series crossed roller bearings is their highly integrated design. Due to the arrangement of crossed rollers, it can realize high load carrying capacity in a very small space, making the equipment more compact. At the same time, this design also ensures extremely high rotational accuracy, which is particularly suitable for equipment with demanding rotational accuracy requirements.
Main application scenarios:
Industrial robot joints: Compact structure and high precision make it ideal for robot joints.
Precision CNC rotary table: able to withstand complex loads, to ensure high-speed and high-precision rotation of the rotary table.
Medical equipment: such as CT machines, MRI equipment, etc., need high precision and high reliability of the rotary mechanism.
Optical instruments and measuring equipment: to ensure the stability of the optical system and accurate calibration.
2. High Rigidity and Strong Load Carrying Capacity
Due to the unique layout of crossed rollers, XRSU crossed roller slewing bearings are able to share the load effectively, avoiding the deformation of traditional bearings due to excessive load in one direction. Its high rigidity enables it to remain stable when subjected to heavy loads and shocks, which greatly extends the service life of the equipment.
3. Simplified design and maintenance
The integrated design of the XRSU series reduces the need for multiple bearing combinations, simplifying the design and assembly process of the equipment. This not only reduces manufacturing costs, but also makes subsequent maintenance easier and more convenient. This is a huge advantage for automated production lines that require fast and efficient assembly.
When selecting XRSU series crossed roller slewing bearings, you need to consider the following key factors:
Load type and size: Determine the radial, axial and tilting moment loads that the bearing needs to withstand and match them to the parameters provided by the manufacturer.
Rotational accuracy requirements: Select the appropriate accuracy class based on the application scenario of the equipment.
Mounting space and size: Confirm the external dimensions and mounting space of the bearing to ensure a perfect fit.
Working environment: Considering the temperature, humidity, dust and other environmental factors, select the bearing model with appropriate sealing and lubrication functions.
In conclusion, XRSU series crossed roller slewing bearings are becoming an indispensable key component in the field of precision machinery due to their unique structure, excellent performance and wide application prospects. If you are looking for a bearing solution that can provide high precision, high rigidity, high load carrying capacity and compact structure, then XRSU series is undoubtedly your ideal choice.
