Looking for Cup Seals

[george]

Hello

I am looking for a source for cup seals as my local old source does not deal with that anymore.
I would appreciate any links you can share.
Thanks
George

[Subculture]

Why not use o-rings?

Pros-

Cheap
Universally available
Enormous choice of polymers and sizes

Cons

Usually need a glanded housing.
Little bit higher friction (not much)

[george]

Well that is something to think about. I was looking for a seal for a rotating shaft that will penetrate a hull just slightly below the water surface. Not high speed, slower speed for a tank track sprocket drive. Also for use in WTC with internal air bladders with vacuum and pressure used from air within the closed WTC to run the ballast tank.

[QuarterMaster]

Hello

I am looking for a source for cup seals as my local old source does not deal with that anymore.
I would appreciate any links you can share.
Thanks
George

That's easy, I use cup seals exclusively in my rotational applications. Buy them all the time:
https://www.theoringstore.com