oilite bearing info

[astjp2]

https://pdf4pro.com/cdn/oilite-bearing-62968.pdf

Info on oilite bearings

[PA1195]

Thanks Dr. Tim I wondered how they worked. I assumed they needed lube from some external source, but there they describe being pressure lubed during production with turbine oil (synthetic; ~30W) and PTFE (teflon) or MoS2 (moly) adds to improve.

Gary

[N96337]

If you really want them lubed, throw them in a jar of oil and place a vacuum pump on it. The oxygen will bubble out and you'll be amazed how much oil they consume!
John

[Robert Lees]

Or heat them in oil (90 degrees C or about 190F) and whilst still submerged, allow to cool to room temperature before removing from the oil.

Phosphor bronze is of course better, but certified is certified, eh?

[PA1195]

Question: When replacing control surface bushings are they pre-oiled or just plain brass? I've replaced them on a few Cubs but not yet on my Taylorcraft. Usually just a drop of 20W non-detergent electric motor oil once in a while. Some like graphite or moly in the oil.

Gary

[N96337]

I always made my own so they were Oilite, Gary. I don't know what "real" parts are!
John

[PA1195]

"real": https://www.univair.com/taylorcraft/...leron-bushing/

[Robert Lees]

I always made my own so they were Oilite, Gary. I don't know what "real" parts are!
John

I don't understand how you could make your own, John (unless you sinter them yourself in a mould?). Oilite is a sintered product, and machining them will seal the pores that give the material its oil-retaining abilities, surely? But I'm willing to be edumicated!
Rob

[N96337]

We've always machined it. Never had an issue.
John

[astjp2]

factory said to press fit in, ream ID to final size