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S302001S302001 – 20mm ID Air Bushing

20mm ID Air Bushing

20mm ID Air Bushing

Second smallest of the New Way metric air bushing line, the 20mm ID size provides excellent load-carrying capability with the flexibility to fit into tight designs on metric shafting. These porous media bushings are an inexpensive way to achieve frictionless linear motion, and compare favorably with conventional rolling element bearings across virtually every performance characteristic. They are also easy to apply, replace or change.

Title Specifications
Size 20 mm20 mm
SKU S302001S302001
Input Pressure 60 psi0.41 MPa
Radial Load Max 30 lb133 N
Radial Stiffness 0.13 lb/μin23 N/μm
Pitch Moment Max 10 lb-in1.1 N-m
Pitch Stiffness 25 lb-in/mil rad2.8 N-m/mil rad
Flowrate on Shaft 7.50 - 10.20 SCFH3.24 - 4.41 NLPM
Air Gap at maximum recommended load 150 micro-inches4 microns
Bushing Inside Diameter (ID) 0.7874 in +.0002/-.00020.020 mm +0.005/-0.000
Bushing Outside Diameter (OD) 1.3 in32 mm
Bushing Length 2.0 in50 mm
Bushing Weight 2.0 oz54 g
Housing Material/Finish Aluminum/AnodizedAluminum/Anodized
Porous Media Material CarbonCarbon
Recommended Shaft Outside Diameter (OD) 0.7874 in20.000 mm
Recommended Shaft Tolerance -.0003/-.0008 in (g6)-7/-20 μm (g6)
Recommended Mounting Bore Diameter 1.270 in +.005/-.00032.26 mm +.13/-.00
Pressure Port Threads M3 x 0.5M3 x 0.5
Maximum Allowable Pressure Supply 100 psi0.689 MPa
Bushing ID Speed 50,000 rpm50,000 rpm
Resolution InfiniteInfinite
Maximum Speed 164.04 ft/s50 m/s
Common Shaft Materials Anodized aluminum, stainless steel, nickel plated steel, ceramics, glassAnodized aluminum, stainless steel, nickel plated steel, ceramics, glass


Mounting Details for 20mm ID Air Bushing

Stainless Steel Shaft
S90S012-xxx – 20mm Diameter

End Mounts
S8020E02 – 20mm Diameter

Mounting Blocks
S8019P02 – 20mm I.D.

Replacement “O” Rings for Bushings
S90RG2-024 – 20mm

Air Fittings
All M3 Thread Size Air Fittings

Learn More About the Porous Media Difference