O-ring Loaded piston/rod seals in various materials. And compression set resistance than nitrile. TAPERED SHAFT. CW Rotation: Moves in. Ommended lead-in chamfer or radius, an assembly cone should be.
![]() ![]() O-ring installationO-ring installation
I have an application where I need to install a 1.5' diameter o-ring on the OD of a threaded end cap. The end cap is about .38' thick and has a recessed area for the o-ring which lies between an external thread and a lip. We currently use aluminum tapered cones with a recess on the large end to install our o-rings. The threaded end of the end cap is inserted into the recess on the tapered cone and the o-ring is pushed over the taper and snaps onto the end cap. This works great and the aluminum can be polished smooth enough that the o-rings do not roll down the taper, they slide down with a light oil. The aluminum is soft though and can get sharp edges if dropped which can damage the o-rings. We tried making the cones from Teflon but it tends to grab the o-rings and roll them. Any tips on a better material or a better way to install external o-rings would be greatly appreciated. Lastly, does it matter if the o-rings roll? Will it affect how they seal if they don't land perfectly right?
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December 2022
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