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RP14

New Build 8x16

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Decided to build own house. Going to do a 8x16 single axle.

Question I have is the axle pivot setup, only steel I could find that would fit is 2"ID double X tube and 1 15/16" solid. Putting it inside the 2" has some play approx 1/16". What I want to know is how much play is allowed? I don't want to have stuck rusted pivots. The tube will be about 10-12" long.

Open to suggestions, TIA

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I would go with DOM (Drawn Over Mandrel). You can find it on-line just a bit pricey unless ypu have a steel supplier nearby that can order it.

http://www.aladdinsteel.com/products/dom_seamless_tubing/?gclid=CjwKCAjwwdTbBRAIEiwAYQf_E0tV3qM59rsqxJ1i9ao2mL2_KQ8HhbIdOj_i1FHOUOd9ycq8L9tY0BoCQbIQAvD_BwE#top

1/16, .062 could produce a lot of shift depending on the lenght of your pivot arm. I like .020 max and grove the solid in a level wind criscross pattern for grease distribution. Being steel on steel grease often. During summer also and drop/raise house several times.

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1 hour ago, papadarv said:

I would go with DOM (Drawn Over Mandrel). You can find it on-line just a bit pricey unless ypu have a steel supplier nearby that can order it.

http://www.aladdinsteel.com/products/dom_seamless_tubing/?gclid=CjwKCAjwwdTbBRAIEiwAYQf_E0tV3qM59rsqxJ1i9ao2mL2_KQ8HhbIdOj_i1FHOUOd9ycq8L9tY0BoCQbIQAvD_BwE#top

1/16, .062 could produce a lot of shift depending on the lenght of your pivot arm. I like .020 max and grove the solid in a level wind criscross pattern for grease distribution. Being steel on steel grease often. During summer also and drop/raise house several times.

I think the tube is DOM 1/2" thick. Was afraid 1/4" too thin and cannot find any other tube that would fit another solid rod inside. Don't want to get something I have to get machined $$$... At least with arm I can pull out and have another made if not good. Not sure how to make the grooves with hand tools?

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1 hour ago, [email protected] said:

I think you are good , you need to have room for a ton of grease.

My thinking is the grease would make up for the gap, but wasn't sure if it'll still have too much play. Yet, don't want it too tight where it gets stuck.

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Be sure to put brakes on it when you build it. It's a lot easier at the build stage. I didn't, it's a huge regret.

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