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Allis Chalmer B Reat Axle Bearing Stuck

A

Anonymous-0

Well-known Member
My father-in-law has the nices AC B but the right rear axle bearing is stuck and he wants to get it out and put in a new one.
He has the wheel loose and can take it off.
What are some of the ways to replace the bearing and How big of a job is it.
Thanks for any info and if I have not told you what you need just ask and I will find out so we can get if ready to use again. Jeff
 
the axle is about a foot long with a big bearing on the outside behind the wheel hub, and a smaller bearing under the tractor on the backside of the final drive case. there is a bolt and washer on the inside bearing that retains the bearings and sets the preload. Inside there is a bull gear and spanner nut on the shaft. You cant replace either bearing without taking the pan off the bottom, removing the spanner nut and bull gear and sliding the shaft out.. NOrmally it is easier to remove the case from the transmission housing to take the gear and axle out of the final drive housing.
 
look at some of the photos and parts book drawings on Dicks pages and you get an idea. This drawing is similar to yours, but you probably have a splined shaft sticking out instead of a 5 bolt flange. note the bearing is facing inward... if you could see the other side, you would see the bolt holding the shaft in.
Untitled URL Link
 
I&T AC-11 service manual has all the fine details for that model and many others. B is fairly easy to work on due to its small size. If you need to pull the finals, make sure you have adequate blocking to hold up the tractor. Removing the wheel makes the other parts very manageable, even without a hoist.
 
AllisBFinaldrivecasting3-vi.jpg
 
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