Circular Flat Vacuum Preloaded Air Bearings LRAVP300 / 615-15220
The 3 inch diameter LRAVP300 air bearing allows translational or rotational motion in a plane while providing a vacuum preload force of about 24 pounds. The LRAV series air bearings allow for fewer bearing components when combined in an assembly to constrain motion to various degrees. With a nominal air gap of 5 microns, the LRAV series exhibit zero wear and no friction of the mating surfaces.
Downloads: | |
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Drawing Download | |
User Instructions | |
Comparison Table | |
Performance: | |
Load Capacity, lbs[N] | 51 [224] |
Stiffness, lbs/inch [N/µm] | 235000 [41] |
Vacuum Holding Force at Rated Vacuum, lbs[N] | 24 [106] |
Ball Seat Preload Force at Rated Vacuum, lbs[N] | 15 [68] |
Flow Rate, scfh [slpm] | 2.9 [1.4] |
Air gap, microinches [µm] | 200 [5] |
Natural Frequency*, Hz | 212 |
Physical Properties: | |
Diameter, inches [mm] | 3.0 [76.2] |
Height, inches [mm] | 0.8 [19.1] |
Ball Seat Diameter, inches [mm] | 0.630 [16.0] |
Mating Ball Stem Model number | R8M12 |
Air Bearing Surface Flatness, microinches [µm] | 20 [0.5] |
Air / Vacuum Supply fitting thread, imperial [metric] | M5 [10-32] |
Material | Aluminum/porous carbon |
Weight, lbs [N] | 0.480 [2.1] |
Installation Requirements: | |
Mating Surface Local Flatness, microinches [µm] | 20 [0.5] |
Mating Surface Roughness, microinches [µm] | 16 [0.4] |
Rated Vacuum, inHg [Mpa] | 20 [.06] |
Rated Supply Pressure, psig [Mpa] | 80 [0.55] |
Max. Supply Pressure, psig [Mpa] | 100 [0.69] |
Air Quality | ISO Class 3 or better preferred |