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Compatible with

20 mm OAV X-SPIN Tapered-Roller air bearing

20 mm X-Spin OAV Tapered-Roller air bearing
Performance Diagrams

Performance Note: Load, stiffness, flow rate, and moment values are based on testing at 60 PSI supply pressure. Actual performance may vary depending on shaft quality, mounting method, air supply stability, and application conditions.

Title

Specification

Size 

20 mm ID 

Part Number 

OAVTPR020MX 

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 

20 – 100 PSI (0.14 – 0.69 MPa)

Pressure Port Threads 

M3 x 0.8 

Radial Stiffness 

0.18 lb/μ in (33 N/μ m) 

Pitch Moment Max 

17.70 lbs-in (2.0 N-m) 

Radial Load Max 

63.8 lbs (283.8 N) 

Axial Load Max 

38.3 lbs (170.37 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 

5.04 SCFH


recommended with

Stainless Steel Shafts

Shaft

Part # OAV20MMSHAFT

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

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