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20 mm OAV Tapered-Roller air bearing


Title

Specification

Size 

20 mm ID 

Part Number 

OAV-TPR20M 

Housing Material/Finish 

7075 Aircraft Quality Aluminum/Mil Spec Hard Anodize 

Side Material/Finish 

7075 Aircraft Quality Aluminum/Mil Spec Hard Anodize 

Porous Material 

Carbon 

Input Pressure 

40 psi - 100 max psi 

Pressure Port Threads 

M3 x 0.8 

Radial Stiffness 

0.15 lb/μ in (26 N/μ m) 

Pitch Moment Max 

14.16 lbs-in (1.6 N-m) 

Radial Load Max 

34.5 lbs (153.46 N) 

Axial Load Max 

20.7 lbs (92.08 N) 

Total Indicated Runout (TIR) 

± 1 millionths in (.025 µm) 

Axial and Radial Error Motion 

.9 μin / 0.023 (µm) 

Bearings Inside Diameter (ID) 

20 mm + .013/-.00 

Bearing Outside Diameter (OD) 

70 mm + .00/-.013 

Bearing Width 

15 mm 

Weight 

0.28 lb (127.0 g) 

Shaft Diameter  

20 mm 

Housing Bore size Light Press Fit Method 

70 mm + .013/-.00 

Flow rate 

5.22 SCFH


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