o-ring source

[undrwater]

I know there have been posts about this in the past, but I spent about 2 on and off frustrating hours trying to find what I'm looking for.

I have an Oly PT-10 camera housing that needs a new o-ring. I purchased one before from a source recommended here on SB, but I can't find the email or details.

Does someone have a listing of the companies manufacture o-rings? I can probably remember who I bought it from if I see the list.

Thanks,

Russell

 

[Wayne L]

Try these.
http://www.orings.com/
http://www.air-oil.com/oringsonlinefset.htm

Wayne

 

[diversteve]

Try Backscatter, they sell Olympus o-rings.

 

[undrwater]

Try Backscatter, they sell Olympus o-rings.

So they do! I think the PT-007 has the same specs as the PT-010, and they show that there. I did find where I purchased the previous one. oringsusa.com. Their size is -252.

 

[mddolson]

O-ring Sources:
http://www.applerubber.com/products/o-rings.cfm

http://www.parker.com/ead/cm1.asp?cmid=247

I suggest you probably want the Shore A-50 hardness, not the standard A-70.

regards

Mike D

 

[undrwater]

Thanks Mike, I did request the 70, though, before I read your post. Any reason why one over the other? I used the 70 the first time, and it seemed to work well.

 

[mddolson]

If 70 is working for you stick with it.
O-rings, contrary to common belief are not compressible.
They just change shape when pinched/squeezed. Harder materials will take higher pressure before extruding out of the sealing groove. 70 is typically ok up to 1500 psi, 90 is for higher pressures (1st stages in regs).
The softer 50 durometer material is squishier, for lack of a better term.
It's easier to assemble and in the case of a plastic camera housing & puts less stress on the surrounding enclosure. Particularly around clamps & screw bosses, where cracks usually start.

My 2 cents worth.

Mike D

Thanks Mike, I did request the 70, though, before I read your post. Any reason why one over the other? I used the 70 the first time, and it seemed to work well.

 

[undrwater]

That makes sense, thanks. I'll keep an eye on the hinges, clamps and everything else. Information worth more than 2 cents!

Russell

 

[scottjohnny288]

Try these.
O-Rings & Radial Seals
http://www.air-oil.com/oringsonlinefset.htm

Wayne

You can also try O-ring seal from Bayseal

 

[Water bird]

If 70 is working for you stick with it.
O-rings, contrary to common belief are not compressible.
They just change shape when pinched/squeezed. Harder materials will take higher pressure before extruding out of the sealing groove. 70 is typically ok up to 1500 psi, 90 is for higher pressures (1st stages in regs).
The softer 50 durometer material is squishier, for lack of a better term.
It's easier to assemble and in the case of a plastic camera housing & puts less stress on the surrounding enclosure. Particularly around clamps & screw bosses, where cracks usually start.

My 2 cents worth.

Mike D

Could you please let me know if the content you mentioned in your reply comes from a specific book? I’ve been struggling to find knowledge about dynamic seals to use in the development of some new diving equipment recently.

By the way, if I want to achieve dynamic sealing at a depth of 100 meters, what material or hardness of O-rings would be more suitable for my needs? Thank you!