O-ring installation
O-ring installation
(OP)
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?





RE: O-ring installation
Try UHMWPE for your cone tools; it should survive an occasional drop without scarring.
Mike Halloran
Pembroke Pines, FL, USA
RE: O-ring installation
Light oil is not recommended for lubrication. Use petroleum jelly or silicon ORing lubricant.
If you can make your cones out of sleet they will last longer and you can get a good finish on them.
Charlie
www.facsco.com
RE: O-ring installation
RE: O-ring installation
Charlie
www.facsco.com
RE: O-ring installation
Charlie
www.facsco.com
RE: O-ring installation
RE: O-ring installation
RE: O-ring installation