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Epoxy bonded air bearing design and installation guide

The bearings need to be installed such that the porous media and work surface have a consistent gap and parallelism.  This is achieved using either applied vacuum or springs and gage blocks, or both.  The purpose of the vacuum and spring is to hold the bearings in position while the epoxy cures.

Vacuum

1. Bearing(s) should have air supply line(s) installed and linked in their final arrangement.  Seal ports not in use.

 

2. Clean Work Surface with alcohol.

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3. Place bearing on work surface in desired position.

 

4. Apply Vacuum to operating air supply line.

 

5. Place mating assembly on top of bearing.

 

6. Set critical gaps with gage blocks or feeler gages if needed, and apply weight to hold in place.  

 

7. Inject epoxy (DP 420) in ports on mating assembly to direct epoxy to mating surfaces.  Stop injection just as epoxy emerges from gaps between bearing and mating assembly.  Do not allow epoxy to drip to porous media and work surfaces. Wipe aways excess.  Clean affected surfaces with alcohol.

 

8. Allow epoxy to cure per specification (DP420)

Springs

1. Mating assembly should have round depressions to receive springs.  Place epoxy in depressions followed by springs. Allow epoxy to cure per specification (DP420).

 

2. Bearing(s) should have air supply line(s) installed and linked in their final arrangement.  Seal ports not in use.

 

3. Clean Work Surface with alcohol.

 

4. Place bearing on work surface in desired position.

 

5. Place mating assembly on top of bearing.

 

6. Set critical gaps with gage blocks or feeler gages if needed, and apply weight to hold in place. Weight should be greater than applied spring forces.

 

7. Inject epoxy (DP 420) in ports on mating assembly to direct epoxy to mating surfaces.  Stop injection just as epoxy emerges from gaps between bearing and mating assembly.  Do not allow epoxy to drip to porous media and work surfaces. Wipe aways excess.  Clean affected surfaces with alcohol.

 

8. Allow epoxy to cure per specification (DP420)

Design & Installation Guides

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