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0.250 Inch Frictionless Air Bushing

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0.250 Inch ID

Part Number 


Housing Material/ Finish

7075 Aircraft Quality Aluminum/Mil Spec Hard Anodize 

Input Pressure 

40 psi - 100 max psi 

Porous Material 


Pressure Port Threads

M3 x 0.5



Radial Load Max

2.9 lbs (13.1 N)

Radial Stiffness

0.01 lbs/μin (2 N/μm)

Pitch Moment Max

0.125 lbs-in (.013 N-m)

Bushing Inside Diameter (ID)

0.2507 in + .0002/-.0000

Bushing Outside Diameter (OD)

0.634 in + .005/-.000

Bushing Length

1.250 in

Bushing Weight

9.80 g

Recommended Shaft Outside Diameter (OD)

0.2500 in + .0000/-.0007 (g6)

Flow Rate


Housing Bore Size O- Ring Method

0.661 in + .005/-.000

Housing Bore Size Light Press Fit Method

0.635 in + .000/- 001

호환 가능

Part #MBI0500

Aluminum Housing Blocks for imperial and metric frictionless air bushings. Made from aircraft quality aluminum and anodized with Mil spec. for ultimate quality.

Part #OAV0500SHAFT

Our standard shafts have a surface finish better than 16 RMS and .0007 tolerance.

Part #OAV0500RG

Meets MIL-R-83248C and ASTM D2000/SAE J200. Offers excellent resistance. Temperature range is

-15 °F to + 400 °F. A75 hardness and color is black.

Part #SEMi-OAV0500

Black anodized aluminum end support block is lightweight and strong for end mounting to support precision shafting. Imperial and metric sizes offered.

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