CalG
Super Member
- Joined
- Sep 29, 2011
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- 5,105
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- vermont
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- Hurlimann 435, Fordson E27n, Bolens HT-23, Kubota B7200
Just a note on the topic
If you are qurious, put an o-ring on an assembly like a drain plug, and snug up the plug bolt.
leave the assembly set fro a day or two, and come back to it. Look very carefully at the o-ring, then loosen up the plug bolt. Again look very carefully at the o-ring. You might notice that the o-ring has taken a set that includes a BULGE caused by friction and compression. That means part of the o-ring is in tension, and another part is in compression. All the while, the whole o-ring is being compressed side to side.
Now consider the ORB. The very common O-Ring Boss seal. My Go to hydraulic fitting configuration. What makes an ORB seal work is the shape and volume of the cavity allocated for the o-ring.
It just WORKS, because it is made to work.
An o-ring sealed oil pan drain plug could be made to work as well, all it would take is a confinement washer the correct thickness and internal diameter. They are called "Supporting Washers" for those interested.
Sealing engineering is fun Static and dynamic. Leather is still the best! Go Chicago Rawhide!
If you are qurious, put an o-ring on an assembly like a drain plug, and snug up the plug bolt.
leave the assembly set fro a day or two, and come back to it. Look very carefully at the o-ring, then loosen up the plug bolt. Again look very carefully at the o-ring. You might notice that the o-ring has taken a set that includes a BULGE caused by friction and compression. That means part of the o-ring is in tension, and another part is in compression. All the while, the whole o-ring is being compressed side to side.
Now consider the ORB. The very common O-Ring Boss seal. My Go to hydraulic fitting configuration. What makes an ORB seal work is the shape and volume of the cavity allocated for the o-ring.
It just WORKS, because it is made to work.
An o-ring sealed oil pan drain plug could be made to work as well, all it would take is a confinement washer the correct thickness and internal diameter. They are called "Supporting Washers" for those interested.
Sealing engineering is fun Static and dynamic. Leather is still the best! Go Chicago Rawhide!