Circular Flat Air Bearings LRAP400 / 610-22457

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Able to support over 500 pounds of load force, this 4 inch diameter air bearing will move large stage assemblies without friction. Remarkably, this bearing is supported by a cushion of air only 5 microns in thickness and has the same stiffness as a normally loaded solid piece of steel 2 inches in diameter, 7 inches long.

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Drawing Download
Solid Model
Performance Graph
User Instructions
Comparison Table
Performance:
Load Capacity, lbs[N] 533 [2345]
Stiffness, lbs/inch [N/µm] 1300000 [225]
Flow Rate, scfh [slpm] 4.8 [2.3]
Air gap, microinches [µm] 200 [5]
Average Gap Sense Pressure at Rated Load, psig [Mpa] 72 [0.50]
Natural Frequency*, Hz 154
Physical Properties:
Diameter, inches [mm] 4.0 [101.6]
Height, inches [mm] 1.00 [25.4]
Ball Seat Diameter, inches [mm] 0.630 [16.0]
Mating Ball Stem Model number R8M12
Air Bearing Surface Flatness, microinches [µm] 20 [0.5]
Supply fitting thread, metric [imperial] M5 [10-32]
Material Aluminum/porous carbon
Weight, lbs [N] 1.144 [5.0]
Installation Requirements:
Mating Surface Local Flatness, microinches [µm] 20 [0.5]
Mating Surface Roughness, microinches [µm] 16 [0.4]
Rated Supply Pressure, psig [Mpa] 80 [0.55]
Max. Supply Pressure, psig [Mpa] 100 [0.69]
Air Quality ISO Class 3 or better preferred
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