Spherical air bearing
For smooth storage, no maintenance and smooth running
With an air bearing, you have contactless and therefore friction-free bearings. 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.
A spherical air bearing glides on a smooth surface on a thin air film. As the movement is frictionless, there is no jerking or breaking loose, which is the case with conventional bearings. Therefore, use air bearings if you need trouble-free movement.
Conventional bearings heat up and radiate heat into the overall system. If you need to avoid this heat source, you can achieve this with an air bearing.
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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
-
Housing material made of 7075 Al/anodized - Air-permeable graphite material
Application samples
Test platforms for satellites and spacecraft- Inertial navigation and gyroscope systems
- Precision alignment and angular positioning
- Optical and metrology systems
- Aerospace
- Science and research
Models
| Characteristics | Unit | OAV25SHR | OAV100SHR | OAV150SHR |
|---|---|---|---|---|
| Size | mm | 25 | 100 | 150 |
| Input Pressure | PSI | 40 – 100 | 40 – 100 | 40 – 100 |
| Air connection | M3 x 0.5 | M5 x 0.8 | M5 x 0.8 | |
| Radial Load Max | kN | 2.04 | 2.34 | |
| At 90 Deg Load | kN | 0.8 | 0.8 | |
| Flow Rate | SCFH | 1.3 | 4.6 | 4.6 |
*Applies at temperature 0° C and air pressure 101.325 Pa (1.01325 bar)
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 at the design stage.
- 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.