Roller Air Bearing X For Rotating Outer Rings
For maximum precision, smooth bearings and optimum synchronization
With a roller air bearing X, your bearings are contactless and therefore friction-free. This is achieved with a thin layer of compressed gas. The air serves as a lubricant that flows out of porous material. This allows you to move your load with high precision, dynamically and smoothly.
With a roller air bearing, the shaft is fixed and does not rotate. Air is also supplied via the shaft. The roller air bearing X enables you to achieve rotating outer rings with an accuracy of 0.025 µm.
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Your advantages of an air bearing
Infinite service life, as maintenance-free.- Fast and smooth movements that do not jerk even at the highest resolution.
- Much more precise positioning is possible with air bearings.
- There is no loss of energy and no source of heat due to friction.
- Free of lubricants or other lubricants.
Features
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Housing material made of 7075 Al/anodized - Air-permeable graphite material
| Characteristics | Unit | OAVRL13MX | OAVRL40MX | OAVRL75MX |
|---|---|---|---|---|
| ID Ø | mm | 13 | 40 | 75 |
| ID tolerance | mm | +0.01/-0.00 | ||
| OD Ø | mm +0.00/-0.01 | 44.5 | 100 | 140 |
| Width | mm | 22 | 36 | 51 |
| Shaft Ø | mm +0.01/-0.00 | 13 | 40 | 75 |
| Inlet pressure | MPa | 0.14 - 0.68 | ||
| Air connection | on request | |||
| Radial load max. | N | 57 | 178,3 | 578,2 |
| Stiffness radial | N/µm | 11 | 68 | 159 |
| Thrust Load Capacity | N | 133,5 | 320,3 | 1245,5 |
| Weight | g | 68 | 517 | 998 |
| Concentricity | µm | ±0.025 |
Standards and guidelines
REACH- RoHS2
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FAQ
- Can another gas also be used?
- Compressed air is commonly used in industrial applications. Compressed nitrogen is also possible, but this also changes the air bearing values. All specifications must be considered when using compressed air.
- How clean must the supply air be?
- Cleanliness class between 3 and 4 of ISO 8573.1
- How are air bearings maintained?
- The air bearings are maintenance-free.
- Can I clean the surface?
- Use a soft cloth with isopropyl alcohol and let it dry.
- How do I install an air bearing?
- Please read the instructions before starting. Each type of air bearing must be installed differently and this should be taken into account during the design phase.
- How does an air bearing maintain stability and damping effect?
- Air bearings are coated with a special epoxy resin that seals the pores on the surface where no airflow is desired. The design thus forces the airflow in the direction of the friction-free surface. This results in greater rigidity, more stability and better damping properties.