Luftlager in verschiedenen Ausführungen

Radiax Air Bearing For Axial And Radial Bearings
For sophisticated and smooth storage

With a radiax air bearing, 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. Radiax air bearings enable axial and radial air bearings, which is a groundbreaking innovation in air bearing technology.

The rotary movement is supported with the highest precision and without friction, which corresponds to a radial bearing. The axial bearing preloads both the horizontal and vertical surfaces with opposing thin-film pressure. This maintains the optimum gap tolerance.

The surface design of these air bearings distributes the air and preload evenly over the entire surface. The result is excellent rigidity and maximum performance in the form of a radiax air bearing.

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Your advantages of an air bearing

  • Icon Vorteil Infinite service life, as maintenance-free.
  • Icon Vorteil Fast and smooth movements that do not jerk even at the highest resolution.
  • Icon Vorteil Much more precise positioning is possible with air bearings.
  • Icon Vorteil There is no loss of energy and no source of heat due to friction.
  • Icon Vorteil Free of lubricants or other lubricants.

Features

  • Icon MerkmalHousing material made of 7075 Al/anodized
  • Icon MerkmalAir-permeable graphite material

Models of radiax air bearings (long design)

Kenndaten Einheit OAVTB16i04 OAVTB24i06 OAVTB32i13 OAVTB60i20 OAVTB60i25 OAVTB100i50 OAVTB150i75
ID Ø mm 4 6 13 20 25 50 75
Bore ID Ø mm 4.018 +0.005/-0.000 6.018 +0.005/-0.000 13.018 +0.005/-0.000 20.018 +0.018/-0.000 25.018 +0.005/-0.000 50.018 +0.005/-0.000 75.018 +0.005/-0.000
OD Ø mm 16.1 23.67 +0.13/-0.00 32 60 100 150  
Length mm 33 53.4 52,8 79,2 79,2 91,4 91,4
Shaft Ø mm 4.00 -0.02 6 -0.02 13 +0.00/-0.02 20 +0.00/-0.02 25 +0.00/-0.02 50 +0.00/-0.02 75 +0.00/-0.02
Inlet pressure MPa 0.28 - 0.68            
Air connection   M3 x 0.5 M3 x 0.5 M3 x 0.5 M5 x 0.8 M5 x 0.8 M5 x 0.8 M5 x 0.8
Radiallast max. N 9.34 20.9 N 43,1 240,2 305,1 871,4 1306,9
Radial Stiffness N/µm 5 5.1 N/μm 11 23 34 110 159
Thrust Load Capacity N 16.01 28.4 N 81,4 373,7 302,9 862,1 2215,2
Pitch Moment Max Nm 0.013 0.4 Nm 0,8 1,1 1,9 5,2 7,1
Weight g 13.8 30.8 g 86 465 416,9 1237,9 2899,9

Models of radiax air bearings (short design)

Kenndaten Einheit OAVTR32i13 OAVTR60i20 OAVTR60i25 OAVTR100i50 OAVTR150i75
ID Ø mm 13 20 25 50 75
Bohrung-ID Ø mm +0,005/-0,000 13,018 20,018 25,018 50,018 75,018
OD Ø mm 31.8 60 100 150  
Länge mm 12,7 16,5 16,5 19,6 19,6
Shaft Ø mm 0.00/-0.02 13 20 25 50 75
Inlet pressure MPa 0.28 - 0.68        
Air connection   M3 x 0.5 M5 x 0.8 M5 x 0.8 M5 x 0.8 M5 x 0.8
Radiallast max. N 10,7 52,2 65,2 191,1 286,5
Stiffness radial N/µm 2.6 5 7.3 24 34.8
Schublast N 81,4 373,7 302,9 862,1 2215,2
Biegemoment Nm 0,8 1,1 1,9 5,2 7,1
Gewicht g 12,8 95,7 86,7 266,3 476,4
Luftverbrauch* m³/h 0,229 0,442 0,419 0,807 1,192

*Applies at temperature 0° C and air pressure 101.325 Pa (1.01325 bar)

Standards and guidelines

  • Icon NormREACH
  • Icon NormRoHS2

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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.


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