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Dynamic Sealing - what am I doing wrong?
I've been trying to design to the Parker O Ring guide, but I'm having real difficulty making sense of it.
What I'm trying to design is a pneumatic cylinder for my little combat robot, and as far as I can tell, there's no commercially available cylinders that are both lightweight and can deal with 68bar pressures. To this end, I thought I'd try my hand at designing the following
80mm Bore
200mm Stroke
What I've been using is this: http://www.applerubber.com/src/pdf/i...ze-o-rings.pdf - more specifically, designing around the following O ring:
-337 75.57 5.33
I've done my gland/groove depths with the design guidelines that that document gives.
I've also attached a drawing - basically, I'm confused as hell because I'm following the design guidelines and yet the O rings look like they're far too large to actually work. Any pointers on what I'm doing wrong would really help.
Thanks!Attachment 1099