Circular Flat Vacuum Preloaded Air Bearings LRAVP400 / 615-15222
The circular LRAVP400 air bearing has a stiffness of 350,000 pounds per inch and supports loads of over 90 pounds. A vacuum pocket provides nearly 50 pounds of holding force to the mating surface while exhibiting frictionless, accurate, linear or rotary motion in a plane. Typical for air bearings of this type, the LRAV series bearings are more accurate than even the finest rolling element bearings by orders of magnitude.
Downloads: | |
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Drawing Download | |
User Instructions | |
Comparison Table | |
Performance: | |
Load Capacity, lbs[N] | 93 [409] |
Stiffness, lbs/inch [N/µm] | 347000 [60] |
Vacuum Holding Force at Rated Vacuum, lbs[N] | 48 [213] |
Ball Seat Preload Force at Rated Vacuum, lbs[N] | 15 [68] |
Flow Rate, scfh [slpm] | 3.5 [1.6] |
Air gap, microinches [µm] | 200 [5] |
Natural Frequency*, Hz | 191 |
Physical Properties: | |
Diameter, inches [mm] | 4.0 [101.6] |
Height, inches [mm] | 0.8 [20.8] |
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] | 0.939 [4.1] |
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 |