Air Bearing In Flat And Rectangular Design
For smooth bearings, no maintenance and optimum synchronization

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 flat air bearing, shown here with a rectangular design, glides on a smooth surface. The latter can be made of glass, aluminum, granite or other materials. 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 want to avoid this heat source, an air bearing is the solution.

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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

Models 1/2

Characteristics	Unit	OAVF20L40	OAVF25L50	OAVF25L100	OAVF40L50
Size	mm	20 x 40	25 x 50	25 x 100	40 x 50
Bearing height	mm	13	17	25	13
Air gap	µm	5
Flatness	mm	0.0005
Inlet pressure	MPa	0.28 - 0.68
Air connection		M3 x 0.5	M3 x 0.5	M5 x 0.8	M5 x 0.8
Nominal load	N	165.4	243	459	386
Stiffness	N/µm	14	22	46	35
Weight	g	25	47	163	55
Air consumption*	m³/h	0.057	0.068	0.113	0.082

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

Models 2/2

Characteristics	Unit	OAVF40L80	OAVF50L100	OAVF100L200	OAVF100L1000
Size	mm	40 x 80	50 x 100	100 x 200	100 x 1000
Lagerhöhe	mm	20	25	39	42
Air gap	µm	5
Flatness	mm	0.0005
Inlet pressure	MPa	0.28 - 0.68
Air connection		M5 x 0.8
Nominal load	N	619	973	4,137	16,183
Stiffness	N/µm	58	97	674	2,028
Weight	g	143	295	1,877	11,164
Air consumption*	m³/h	0.108	0.136	0.272	1.263

*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 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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