SCX24 micro O rings

[Kartooo]

anybody have a source for these ?
they are found on both ends of the worm gear in the diff and also between the frt axles and joint. something like a .050 ID. i had a worm gear with a lot of end play and found no O ring in there on the driveshaft end. i used a metal shim.

 

[Brake Weight]

Harbor Freight?

 

[Brake Weight]

Never mind. Misread .050.

 

[Radracer]

Ive tried looking everywhere for them too, i just bought some cheap front links, came with some, and also the upgraded aluminum control arms, suspension arms? It’s not the cheapest way to get them but... hey. 30 bucks for 22orings ehh

 

[Kartooo]

plenty of shock o rings for sale but only pics no specs. be hard to measure they are wicked small. don't think they are duraprene. seem more like a silicone base.

 

[NkedFatWhiteGuy]

[mention]Kartooo [/mention] were you able to track these down? I am having the same problem: missing o ring on the front of a worm gear... or shredded one I guess...


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[NkedFatWhiteGuy]

After a bit of looking, I am thinking that this is the most likely replacement:

https://www.amainhobbies.com/axial-3.5x2mm-oring-10-axia1202/p187851


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[tjiken]

After a bit of looking, I am thinking that this is the most likely replacement:

https://www.amainhobbies.com/axial-3.5x2mm-oring-10-axia1202/p187851


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Just as an FYI, these do not work. They are way to big.

 

[HumboldtEF]

I was gonna 3D print a shim but found that a simple washer was the same thickness, it would have been way to thin to print anyway. I think its better than a rubber O ring anyway.

 

[Slambaam]

I was gonna 3D print a shim but found that a simple washer was the same thickness, it would have been way to thin to print anyway. I think its better than a rubber O ring anyway.

What size washer are you using?


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[HumboldtEF]

I believe it was .50mm, it not even a shim just a typical washer.

 

[2471:24]

I had a lot of play too. The silicone rings don’t work, I found a ballpoint pen and cut a bit of the reservoir where the ink was. Perfect fit, no more play.

 

[_e_w_]

Does anyone know the diameter of the shafts? I would like to address this issue when I rebuild my SCX24 and was hoping to use .50mm shims or aluminum Hot Racing spacers.

I know that Hot Racing sells o-rings for some of their SCX24 parts, so if anyone is set on o-rings you may want to take a look at those.

 

[Ynad]

Actually cheap lighters use small rubber o rings suitable for the scx24.

 

[BIGW0RM]

I had a lot of play too. The silicone rings don’t work, I found a ballpoint pen and cut a bit of the reservoir where the ink was. Perfect fit, no more play.

Excellent suggestion. "thumbsup"

 

[2471:24]

Excellent suggestion. "thumbsup"

Thanks. Use plastic, it’s really easy to file it down to the right measurements. So that it won’t have slop and so that the worm gears will turn freely. Ill add that I got the right size of o-rings, and they worked fine for like one battery pack, and then I had too much play again.

 

[BIGW0RM]

Thanks. Use plastic, it’s really easy to file it down to the right measurements. So that it won’t have slop and so that the worm gears will turn freely. Ill add that I got the right size of o-rings, and they worked fine for like one battery pack, and then I had too much play again.

I found a perfect pen at work for this and I look forward to doing this. "thumbsup"

 

[mach2nh]

Thanks. Use plastic, it’s really easy to file it down to the right measurements. So that it won’t have slop and so that the worm gears will turn freely. Ill add that I got the right size of o-rings, and they worked fine for like one battery pack, and then I had too much play again.

Only way to keep an o ring alive is if the surface area the ring rides on was lubed and perfect. The amount of torque is to high for that micro ring and its like ****!
Metal shims will last longer but then you have the problem of the mostly harder shim eating up the surface areas.



The pen idea is defiantly outside the box and sounds game changing. Strength but very forgiving to its surroundings.

Time to raid the stationery closet.

 

[Gramps]

I wonder how some 3d printer shims would work?

 

[HumboldtEF]

I wonder how some 3d printer shims would work?

I never printed any but I started to design one. Its just too thin to be all that strong and I think it would be tricky to get a super accurate thickness. Printing at .5mm thick could yeild a part thats .4mm or .6mm thick which is fine for anything thats not serving as a shim. Anyway I didnt think it would work well so i didnt bother trying.