What is the Name of the Rubber that Goes between a Cable and an Enclosure?

Hi

If you created an Electronics projects, and put it in some plastic/metal box,
and then drilled a hole in the box, in order to have some cable go thru that box,
then, there is some rubber that is usually put between the cable and the box.

The purpose of this rubber is to protect the cable from being cut by the box.

Here is an example of such rubber:

So my question:
I want to buy such rubbers, they usually come in slightly different shapes,
but all go around the cable, and between thecable and the box.
So that is the name of it?

If there are several names, please give them,
it will increase my chance of finding something appropriate in eBay.

Thank you

Strain Relief, I believe is is the term you're looking for:

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Hi ReverseEMF

Terrific, thank you so much.

It indeed finds many results in eBay with this term.

BTW, more terms that are used, seem to be:

• cable gland
• cable locknut
• cable waterproof

Strain relief is the shield that extends along the cable outside the box, to limit flexing of the cable to a shallow radius. Strain relief is normally a good idea for any cable end as well as going through holes.

The function to prevent damage from sharp edges only needs a grommet. Strain relief is about reducing /
preventing fatigue failure over time from bending, and a grommet alone doesn't provide this.

Hi Mark

Thank you for sharpening this matter..
You're completely right..

This thing comes in slightly various shapes, for different uses.

For example, the waterproof ones are quite big..

I am looking for something small, similar to what I showed in the picture in the first post..

What term would be most appropriate for finding such a thing in eBay/Ali?

What your first picture shows is a molded cable with the protection being part of the molding process! You need to either buy that entire cable or use a more universal method with a grommet of a strain relief with hole protection built in.

Paul

Cable gland:

Make them yourself.

I use 4:1 heat shrink with a flared end and a cable tie inside the box.

You can add a stand-off to prevent cable rotation.

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larryd:
Make them yourself.

Indeed, another option to remember..
Thank you

larryd:
I use 4:1 heat shrink with a flared end and a cable tie inside the box.

You can add a stand-off to prevent cable rotation.

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Too much freedom of movement with that as such, both rotation, in-and-out and side-to-side movement causing movement of the wires inside.

Yes, I have used similar, but I think the heat-shrink strain relief and a cable gland or the "grip grommet" first shown are the proper combination.

Paul__B:
Too much freedom of movement with that as such, both rotation, in-and-out and side-to-side movement causing movement of the wires inside.

Yes, I have used similar, but I think the heat-shrink strain relief and a cable gland or the "grip grommet" first shown are the proper combination.

To prevent movement I add a standoff on the inside then cable tie to that.

larryd:
To prevent movement I add a standoff on the inside then cable tie to that.

There are sveral different shapes of standoffs..
Do you maybe have a picture of that?

I had a thread made about this several years back but cannot find it any more.

You can use any standoff you can get.
I use M2 standoffs as see in the link offered below.
I found some of the images and added reposted them to the "Share tips you have come across" tread.

See post #689 below.

https://forum.arduino.cc/index.php?topic=445951.msg4343450#msg4343450

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Interesting, thank you.

It means that you have a screw visible outside..

The 'Brass standoff plastic nut' method doesn't have a visible screw

Also, you can forgo the standoff and just use plastic, no screw needed.

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Really nice, thank you..