Sealing an axial face.

[TCThornberry]

I am looking to seal a face as shown below


Load Rotating axis Load
_______________________________________________
| Seal | | Seal
___\_/___ | ___\_/___
||||||||||||| | ||||||||||||||||
___/ \___ | ___/ \___
| Seal | | Seal
________________________________________________
Load --> Load

I am thinking of making them out of graphite for both pieces. What kind of seal is this. The thing it is sealing is air-air and sand. Hope you understand the principle applied here.

 

[btrueblood]

You have the right terms and right idea, I think. Very similar to a face seal used in centrifugal water pumps. Except the seal would be graphite on one side, bearing on a ceramic on the other side. Both faces should be lapped as smooth, flat, and square to the shaft as possible, and a spring of some sort used to maintain contact between the faces.