Tapered Air Bearing
For maximum precision, smooth operation and optimum synchronization
Tapered air bearings are roller air bearings with a conical, i.e. tapered, bearing arrangement. This allows you to replace a conventional roller bearing (tapered bearing) and benefit from the advantages of a wear-free air bearing.
Aircraft manufacturers are already using these high-quality bearings. The advantages of this product are convincing: no contact, no friction, no wear, maximum speeds, unlimited service life and no heat generation at high speeds.
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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 | OAV-TPR13M | OAV-TPR20M | OAV-TPR25M | OAV-TPR40M | OAV-TPR50M | OAV-TPR75M |
|---|---|---|---|---|---|---|---|
| ID Ø | mm | 13 | 20 | 25 | 40 | 50 | 75 |
| Tolerance | +0.013/-0.00 | ||||||
| AD Ø | mm | 53 | 70 | 70 | 90 | 100 | 148 |
| Tolerance | +0.00/-0.013 | ||||||
| Width | mm | 13 | 15 | 15 | 19 | 24 | 29 |
| Weight | g | 67 | 127 | 127 | 230 | 345 | 916 |
| Shaft Ø | mm | 13 | 20 | 25 | 40 | 50 | 75 |
| Housing bore | mm | 53 | 70 | 70 | 90 | 100 | 148 |
| Tolerance | +0.013/-0.0 | ||||||
| Inlet pressure | MPa | 0.14 - 0.68 | |||||
| Air connection | M3 x 0.8 | M5 X 0.8 | |||||
| Air supply | via the | housing | |||||
| Stiffness radial | N/µm | 24 | 35 | 64 | 75 | 98 | 170 |
| Pitch moment | Nm | 1.1 | 2.1 | 2.8 | 3.1 | 3.8 | 7.1 |
| Radial load max. | N | 206 | 204 | 318 | 518 | 798 | 1483 |
| Axial load max. | N | 124 | 122 | 190 | 311 | 479 | 890 |
| Concentricity | µm | ±0.025 | |||||
| Axial and radial error | µm | 0.023 | |||||
| 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.