Cylindrical Air Bearings LCAP250 / 630-43634

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Less than 1.5 pounds in total weight, the LCAP250 air bearing will exhibit frictionless motion under zero speed or high speed conditions. With a load capacity of over 300 pounds, this air bearing supports medium to heavy loads while providing linear and rotary motion.

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Solid Model
User Instructions
Comparison Table
Load Capacity, lbs[N] 305 [1342]
Stiffness, lbs/inch [N/µm] 790000 [137]
Flow Rate, scfh [slpm] 27 [13]
Radial Air gap, microinches [µm] 400 [10]
Physical Properties:
Outside Diameter, inches [mm] 3.375 [85.73]
Inside Diameter, inches [mm] 2.5008 +.0002/-0 [63.520 +.005/-0]
Length, inches [mm] 3.75 [95.3]
Recommended shaft size, inches [mm] 2.50 [63.5]
Shaft Tolerance -0.0004 [-0.010]
Air Bearing Inside Diameter Roundness, microinches [µm] .000050 [.001]
Supply fitting thread, metric [imperial] M5 [10-32]
Material Aluminum/porous carbon
Weight, lbs [N] 1.297 [5.7]
Installation Requirements:
Mating Surface Local Roundness, microinches [µm] .000050 [.001]
Mating Surface Roughness minimum, 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
Number of Units:
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