AXCR cross roller bearings consist of an inner ring, an outer ring, cylindrical rollers and spacers. Due to their compact design, these bearings are frequently used as swivel bearings. Typical applications include milling heads, swivel axes or robots, as well as industrial applications with increased accuracy requirements.
In cross roller bearings, the cylindrical rollers are arranged cross-wise in a raceway offset by 90°, so that loads and torques can be absorbed evenly in all directions.
Cross roller bearings offer relatively high axial and radial rigidities and tilting rigidity in highly compact constructions.
Bearing Types
Cross roller bearings are available in a multitude of bearing types and designs. Basically, we differentiate between the following:
- Single-part ring + radial filling plug - for filling with rollers and spacers (distance pieces)
- Two-part non-rotating ring, single-part rotating ring
- Screw-on rings / non screw-on rings
- Special bearings - customer-specified ring dimensions, fastening options or toothings
AXCR-U Design
AXCR-U is a design with single-part rings. Both rings can be screwed on, and it is part of the standard program.
Key Features
- Single-part ring design
- Radial filling plug for filling rollers and spacers
- Both inner and outer rings can be screwed on
- Standard program available (see product tables)
Size Range
- Bore d: 80 - 540 mm
- OD D: 165 - 718 mm
- Height H: 22 - 50 mm
AXCR-S Design
AXCR-S is a design with equal-height single-part rings. Both rings can be screwed on, and it is part of the standard program.
Key Features
- Single-part ring design with equal-height construction
- Both inner and outer rings can be screwed on
- Suitable for applications requiring equal-height mounting
- Standard program available (see product tables)
Size Range
- Bore d: 130 - 360 mm
- OD D: 205 - 435 mm
- Height H: 25.4 mm (fixed height for all sizes)
AXCR-M Customized Design
AXCR-M is a customer-specific design with single-part rings. The roller elements and spacers are filled via a radial filling plug. The ring designs can be made with countersunk holes, through holes, threaded bores, or without holes. All features of the bearing are adapted to customer requirements.
Customization Options
- Customer-specified ring dimensions
- Special fastening options (countersunk holes, through holes, threaded bores, or without holes)
- Toothing design (internal or external teeth, if required)
For customized AXCR-M bearings, email sales@eb-system.com to discuss your specific requirements.
Design Comparison
- d: bore diameter range (mm)
- D: outer diameter range (mm)
- H: height (mm)
| Feature | AXCR-U | AXCR-S | AXCR-M |
|---|---|---|---|
| Ring Design | Single-part ring | Single-part ring (equal height) | Customized |
| Filling Method | Radial filling plug | Radial filling plug | Radial filling plug |
| Screw Fastening | Both inner and outer rings | Both inner and outer rings | As required |
| Product Availability | Standard program | Standard program | Made to order |
| Bore d | 80 - 540 mm | 130 - 360 mm | Per customer requirements |
| OD D | 165 - 718 mm | 205 - 435 mm | Per customer requirements |
| Height H | 22 - 50 mm | 25.4 mm (fixed) | Per customer requirements |
Bearing Structure
AXCR cross roller bearings consist of the following main components:
| Component | Description |
|---|---|
| Inner Ring | Inner bearing ring with raceway and mounting holes |
| Outer Ring | Outer bearing ring with raceway and mounting holes |
| Cylindrical Rollers | Arranged cross-wise at 90°, absorbing loads evenly in all directions |
| Spacers (Distance Pieces) | Separate the rollers and maintain spacing |
| Filling Plug | Radial opening for filling rollers and spacers |
| Seals | Non-grinding gap or labyrinth seal (standard, non-contact); grinding seals (optional for special applications) |
Next Steps
Learn more about the detailed features of AXCR bearings:
- Bearing Features - Fastening methods, ring designs, seals, accuracy
- AXCR-U Dimensions Table - Complete AXCR-U product specifications
- AXCR-S Dimensions Table - Complete AXCR-S product specifications
- Designation System - How to correctly order AXCR bearings