T2508X outer bearing
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Topic author - Posts: 20
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T2508X outer bearing
Does anyone have any experience with fitting these to the rear side shafts. I would like to know of the side / half shafts need any machining to make this bearing fit.
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Re: T2508X outer bearing
OK, you stumped me, what is a T2508X bearing and where is it used?
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Re: T2508X outer bearing
I am pretty sure "half shaft" is the commonly used British name for "Axel shaft."
Terry
Terry
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Re: T2508X outer bearing
Mark Strange
Hillsboro, MO
1924 Cut-off Touring (now a pickup)
Hillsboro, MO
1924 Cut-off Touring (now a pickup)
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Re: T2508X outer bearing
2508X is Snyders part number for the same Langs offering, it's made in Texas, a very short modern outer bearing with Timken taper fitted to shell race that has to be pinned to the axle housing, by using that existing hole in the outer housing that holds the Hyatt sleeve dimple, and using a 1/4” dia. set screw. Supposed to replace the long flexible ribbon roller Hyatt bearing used by Ford.
Instructions says it will slip on, but maybe if axle is old worn, if new (factory spec is 1.062-1.065”), likely you have to remove a bit to slip it in place.
Instructions says it will slip on, but maybe if axle is old worn, if new (factory spec is 1.062-1.065”), likely you have to remove a bit to slip it in place.
Last edited by DanTreace on Thu Mar 11, 2021 1:14 pm, edited 1 time in total.
The best way is always the simplest. The attics of the world are cluttered up with complicated failures. Henry Ford
Don’t find fault, find a remedy; anybody can complain. Henry Ford
Don’t find fault, find a remedy; anybody can complain. Henry Ford
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Re: T2508X outer bearing
In viewing the above image, does anyone think the “new, better bearing” is a bit shadetree? The instruction even says it isn’t an ideal fit...
Picture an original axle shaft being a light slip fit to loose fit in the inner bearing race of that modern bearing. The axle shaft is now “rolling” on two thin hardened races that are likely much harder than the Rockwell C 50 hardness of a Ford/proper axle shaft. And unless this entire assembly is set up to be greased by the rear grease cups, then the interface between axle shaft & race now is absolutely dry. I would anticipate a much more rapid work hardening and potential failure of the axle shaft versus the “original” setup.
Picture an original axle shaft being a light slip fit to loose fit in the inner bearing race of that modern bearing. The axle shaft is now “rolling” on two thin hardened races that are likely much harder than the Rockwell C 50 hardness of a Ford/proper axle shaft. And unless this entire assembly is set up to be greased by the rear grease cups, then the interface between axle shaft & race now is absolutely dry. I would anticipate a much more rapid work hardening and potential failure of the axle shaft versus the “original” setup.
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Re: T2508X outer bearing
i have only seen 1 sheered axle. It was on Lee Chases sedan in Kanab Utah. he had a ball bearing substitute axle bearing. The axle sheared right at the edge of the bearing.
I believe the hyatt "spring" spreads the load over its total length. these "substitutes" are not for driving T's.
why think somebody"s brilliant idea is better than Henerys? 15,000,000+ T's proved his design.
I believe the hyatt "spring" spreads the load over its total length. these "substitutes" are not for driving T's.
why think somebody"s brilliant idea is better than Henerys? 15,000,000+ T's proved his design.
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Re: T2508X outer bearing
My 1924 sheared an axle shaft a few years back. I use OEM Ford Hyatt bearings. From the rusted surface, it looks like the crack had been spreading for a long time. The location of the crack lined up with the spring "fingers" that supported the Ford style leather inner oil seal.
Mark Strange
Hillsboro, MO
1924 Cut-off Touring (now a pickup)
Hillsboro, MO
1924 Cut-off Touring (now a pickup)
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Re: T2508X outer bearing
So Mark, did you ever figure out why? bent axle housing(s)? Brand x axle? Washboard roads? Stunt driving?
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Re: T2508X outer bearing
Too many burnouts!
Seriously, my theory is that the hard steel spring "fingers" backing up the leather seal were rubbing on the axle shaft, and over the years a crack started in the scratches and slowly propagated in fatigue until it finally broke.
Seriously, my theory is that the hard steel spring "fingers" backing up the leather seal were rubbing on the axle shaft, and over the years a crack started in the scratches and slowly propagated in fatigue until it finally broke.
Mark Strange
Hillsboro, MO
1924 Cut-off Touring (now a pickup)
Hillsboro, MO
1924 Cut-off Touring (now a pickup)
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Re: T2508X outer bearing
It’s very very common to see a broken axle shaft that is broken where the ‘26-‘27 Ford style seal has scratched a little groove in the axle shaft. So common that you shouldn’t re-use an axle shaft if it has even a hint of a groove there. It’s also something that was known about back in the day. I seem to recall mention of it in an old reference book or a trade magazine like Ford Owner & Dealer or something similar.
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Re: T2508X outer bearing
that all makes sense. thanks for that info.
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Re: T2508X outer bearing
Some of Henry's ideas for the T were open to improvement. Rear axle bearings were one. Ford built 5 million A models with rear axle bearings of the floating design so the weight of the car was no longer carried on the axle. Just 'cos Henry did it one way, doesn't mean it was the best way.
Allan from down under.
Allan from down under.
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Re: T2508X outer bearing
Model A axle shafts got most of their torque load in only one direction because of wheel brakes.
Model T axle shafts get torque loads in both directions due to the brake on the drive line.
They are completely different animals in that respect.
Model T axle shafts get torque loads in both directions due to the brake on the drive line.
They are completely different animals in that respect.
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Re: T2508X outer bearing
While the torque loading may be different between Model T and A, Mark's axle clearly failed in bending mode due to metal fatigue. fwiw, jb
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Re: T2508X outer bearing
Fellows, the original poster was concerned with the bearings. It was the floating bearing set-up which was the big improvement in the A model. The weight of the car was then carried on the bearing and the axle housing, relieving the axle of considerable load and propensity for wear.
The T model set-up served its purpose at the time, millions of times over, but it was not flawless.
Allan from down under.
The T model set-up served its purpose at the time, millions of times over, but it was not flawless.
Allan from down under.