I need grommets, or other similar sharp-edge protections. I punched some holes for 1.25" conduit in a rack (so that's 1.701" dia.) top panel.
I did have a stub nipple in the holes and 2 conduit nuts; then the plastic thread-on ends.... but that's just too small for the connector I need to send through...
So where can I find some ~1.7" dia grommets, or another way to guard the sharp edges, such as a plastic protector?
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When I had to get a large connector on a 0.5" diameter cable through a panel, I had the electricians punch a 3" hole that would pass the connector - then I got a 4" square piece of aluminum, drilled a 5/8" hole in the middle and cut it in half, through the hole. I mounted the two pieces over the 3" hole, and put a suitable grommet around the cable and trapped it in the 5/8" hole between the two half-plates. Made a fairly neat installation.
There is also some nylon (or other plastic) U-channel material made especially for making large do-it-yourself grommets.
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Grommet strip is commonly available, either serrated or plain edged, the serrated goes round tight corners better.
Part numbers:
548-546 548-552 548-568Or, you can get some of the heavier style automotive edge moulding strip, we buy something like this from RS Components for really large holes and for edging panels.
Part Numbers:
423-6247 823-550 423-6231 423-6253 823-544Peter
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Would something like this work?
You could also try a google search for "grommet strips" that can be cut to length and used to line the sharp edges of just about any shape and size cutout. An automotive supply store may have them.
-- Chuck Wozniak
That's what those are called; thanks.
Electronic Surplus Inc. in Cleveland says they have the by-the-inch grommet strips. I'll stop by while in town and see.
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