Building my own high quality seals...

[He Who Shall Not Be Named]

That's an 'X' section O-ring, not a cup seal. Rommel's above explanation is right on point.

Here you go.

[wlambing]

Quad-ring (4 lobes). Very good sealing properties when used with pushrods. Keep it lubed up and it will give many hours of sealage enjoyment!

[He Who Shall Not Be Named]

I'm really glad you posted these! Did you find any benefit for adding compression on the cup seals?

That's an 'X' section O-ring, not a cup seal. Rommel's above explanation is right on point.

[redboat219]

Did you find any benefit for adding compression on the cup seals?

Compression fitting is merely a holder.
Adding compression could deform the cup seal causing it to grip the shaft and destroy the delicate sealing lip.

[Fishb0y]

I'm really glad you posted these! Did you find any benefit for adding compression on the cup seals?

[He Who Shall Not Be Named]

Next time I'll actually watch the video instead of letting it play in the background while I work...

[Fishb0y]

After Dive Tribe, I finally got off my butt and ordered some U-cup seals (1/8" ID x 1/4" OD) — the same ones from Bob’s video. I had to place a minimum order of 88 pieces, so I’ll have plenty of extras if anyone’s interested. They should arrive in about a month.

[Fishb0y]

Next time I'll actually watch the video instead of letting it play in the background while I work...

[RCSubGuy]

Suppliers and part numbers were posted to the video that I put on my channel talking about how to build the seals.

https://youtu.be/sjuMFJOgMJU

[Fishb0y]

I’ll need to check those out too, thanks,

[QuarterMaster]

You can do all that, or keep it simple stupid.

5 minute assembly, Rulon bearings, Pushrod can can angle off center.

I NEVER have moisture in my boats.

A simple 1/8" pushrod seal

FWIW, yes you can put Oilite in the wet, but Rulon (Also McMaster Carr) are designed to BE in the wet. NEVER need re-oiling. More forgiving in angular and concentric misalignment over time. Berfect for shaft component not only for shaft alignment, but thrust bearings.

[wlambing]

Beware of assistants named Grrrr!! I miss that cartoon series!

[Fishb0y]

I used to run the aquatics programs for one the Boston YMCAs when I was much younger. My boss could never remember names, so he called me "that fish-boy" for the first month I worked there.

[He Who Shall Not Be Named]

Excellent, Thank you!

Fish-boy. A character from the Invader Zim cartoon series (my go-to DVD when working in the shop).

David

[Fishb0y]

Excellent, Thank you!