lol. The application is in fact a Chrysler oil pump driveshaft. But it's not an early Hemi, it's a later 340.
Regardless, Chrysler used these in millions of engines for over 50 years. My post was to try to understand what material they used...it looks a lot like Oilite but I'm not sure. I want to be able to make my own for a few reasons...they're kinda pricey if you buy them and I want to be able to make them to my own dimensions.
In this application, I considered a needle bearing and even ordered a few to look at but I'm not at all convinced they'd be any better and I know they'd be a lot worse if they decided to come apart. The bronze bushings last 'forever' which is good enough for me....
Ninety years already - not just "over fifty", nearly double it.
Chrysler invented Oilite 1930, Super Oilite 1932. Both existed because MOPAR needed them, went straight into use, and they are night and day different goods.
Oilite was classical Copper-Tin Bronze, just sintered for a lot of Oil-holding void spaces. Oilite Plus, the rather WEIRD Copper-
Iron Bronze for higher loading pressures. Think water pump bearings.. or maybe it was a seal face? Been a while.
More variations on a porousity theme have been added since Oilite left its MOPAR home. See Oilite II and very much harder Oilite 16,
(what the motorsickle mentioned actually needed) add yet-another variant - Oilite Plus - with PTFE involved.
WHICH of the classical or present-day oilites do you really need? They have modest, but nonetheless "special", considerations as to machining, lest the "pores" become occluded from cutting tool rub/smear. OTOH, it has become HARD to find a size not stocked, ready to use. Because "ready"- stock items adopted as design wins - is how they ARE most commonly used.
Why invent a new size, when all I had to do was select from existing ones and go sort a tougher challenge ,"Autopen" signature machines and their first-gen automatic document feeders, the rice-bowl of that era.
A few boxes of a hundred, various types and sizes, (from W.W. Grainger, "back in the day"), and formerly wore to flinders sheet-offset printing presses - chock full of 'em, so long as not under-roof at TIMROSCO HQ [1] - rode again. Stable as houses, and jam-free, even at the full gallop.
The maker has their characteristics and the maths for matching to applications right on the website for load pressure vs surface velocity differentials.
"olite.com" finds it. Actually a Beemer Precision brand now, nearby Pennsyltucky.
MMC has a ton of 'em - prolly all those Beemer makes - just not necessarily all in local stocks in any depth, if at all.. same as Grainger was doing.. and probably still are?
Many Oilites worth. OK Brethren. That's a cheat. I have been researching use of Copper Iron Oilite for back pressure fed void-through lubed wear plates- that mostly WONT... "wear" - underside of a 10EE carriage ....for "some years already".
[1]Harry Timken had an OCD fetish. Ignorant printing press or mimeograph machine came in the door at Timken Roller Bearings Co HQ? Harry's orders, any bearings IN the hapless f**ker were replaced with his beloved tapered rollers. Damn the re-Engineering and machining expense!
Exit Oilite. Enter a thousand-year-capable mimograph machine, obsolete the year before it left the factory, brand-new.