HXSU Series Crossed Roller Bearings
A crossed roller bearing with integral rings and mounting holes, designed for direct installation in compact, highly rigid precision rotary mechanisms.
Key Parameters
| Series | HXSU Series |
|---|---|
| Design | Integral inner and outer rings; mounting holes |
| Roller Arrangement | Cylindrical rollers arranged alternately at 90° |
| Seal Type | Double-sided sealed |
| Load Capability | Radial load, bidirectional axial load and overturning moment |
| Mounting | Both rings can be directly bolted |
| Main Benefits | Direct mounting, high rigidity and compact design |
HXSU Series Crossed Roller Bearings Overview
The HXSU series consists of an integral outer ring, an integral inner ring, and a set of cylindrical rollers with spacers or a cage. The rollers are arranged alternately at 90° between the rings, while the spacers help prevent adjacent rollers from contacting each other. Mounting holes in both rings allow direct attachment to adjacent components, reducing the need for separate flanges or support housings.
Structure Illustration
Design & Performance Features
- Cylindrical rollers are alternately arranged at 90°, forming a highly rigid load-carrying structure within a compact section.
- A single bearing can accommodate radial loads, bidirectional axial loads and overturning moments.
- Both inner and outer rings are integral, supporting stable mounting and rotational performance.
- Spacers or a cage separate adjacent rollers and help prevent direct roller-to-roller contact.
- Both rings have mounting holes and double-sided seals for direct installation and lubricant retention.
Mounting & Operating Notes
Both rings can be attached directly to adjacent components through their mounting holes; mounting surfaces should provide sufficient rigidity.
Mating surfaces should provide good flatness, concentricity and finish; tighten bolts uniformly in a diagonal sequence.
Fits, tolerances, tightening torque, preload, lubrication and operating clearance should be selected according to load, accuracy, speed and temperature conditions.
Typical Applications
High-precision rotary tables, indexing units and machine-tool rotary axes
Robot joints, rotary units and automation systems
Semiconductor, inspection and measurement equipment
Precision medical, optical and radar mechanisms
Series & Model Information
The HXSU prefix identifies crossed roller bearings with integral inner and outer rings and mounting holes. Select the exact model according to bore diameter d, outside diameter D, width B, basic load ratings, seal arrangement, reference mass and mounting conditions. The table below shows HXSU080318 as a representative model only.
