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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.

Size20 mm20 mm
Input Pressure60 psi0.41 MPa
Radial Load Max30 lb133 N
Radial Stiffness0.13 lb/μin23 N/μm
Pitch Moment Max10 lb-in1.1 N-m
Pitch Stiffness25 lb-in/mil rad2.8 N-m/mil rad
Flowrate on Shaft7.50 - 10.20 SCFH3.5 - 4.8 NLPM
Air Gap at maximum recommended load150 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 Length2.0 in50 mm
Bushing Weight2.0 oz54 g
Housing Material/FinishAluminum/AnodizedAluminum/Anodized
Porous Media MaterialCarbonCarbon
Recommended Shaft Outside Diameter (OD)0.7874 in20.000 mm
Recommended Shaft Tolerance-.0003/-.0008 in (g6)-7/-20 μm (g6)
Recommended Mounting Bore Diameter1.270 in +.005/-.00032.26 mm +.13/-.00
Pressure Port ThreadsM3 x 0.5M3 x 0.5
Maximum Allowable Pressure Supply100 psi0.689 MPa
Bushing ID Speed50,000 rpm50,000 rpm
Maximum Speed164.04 ft/s50 m/s
Common Shaft MaterialsAnodized 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