Rear hub bearings

AA Ford Discussion Group relating to the repair and restoration of your AA Ford.
Jeff Brown
Posts: 101
Joined: May 26th, 2016, 9:57 am
Body Type: 82-A
Model Year: 1929
Location: Tucson AZ

Rear hub bearings

Post by Jeff Brown » May 7th, 2017, 5:12 pm

So I finally popped the remaining hub off my 30/31 rear end with the help of a 30 ton jack, some heat and some good heart medicine, but the outer bearing race in it is a real mess - grooves worn in it where the rollers have been running and badly pitted. Is it possible to get the outer races for these or should I to try and find a better hub? And if you can get them, how easy is it to get the old one out? Also, where is the best place to get replacement roller bearing cages? My bearings are made up of two separate cages - is that normal? Lots of questions - any help appreciated!

Thanks

Jeff

Bob C
Posts: 1260
Joined: April 24th, 2003, 11:50 am
Body Type: Mail truck, Stake tr
Model Year: 1931
Location: SO CAL

Re: Rear hub bearings

Post by Bob C » May 7th, 2017, 5:59 pm

I would look for another hub. Don't think anybody is making new bearings, might try Little Dearborn.
The two small bearings replaced the one long one. AA-1225-C is the long bearing and BB-1225-R is the short.

Bob

Stakebed
Posts: 1187
Joined: June 14th, 2007, 7:29 pm
Body Type: Grainbox
Model Year: 1929
Location: Illinois

Re: Rear hub bearings

Post by Stakebed » May 8th, 2017, 7:36 pm

I thought little dearborn closed up shop...

Berts in Denver might be another best bet - if not them they would know who....

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dhetch
Posts: 54
Joined: May 16th, 2011, 5:48 am
Body Type: Stake Body
Model Year: 1928
Location: Lakeville, MN

Re: Rear hub bearings

Post by dhetch » May 8th, 2017, 8:32 pm

Jeff,
If your hubs and bearings are so bad, you might want to check the bottom of the wheel bearing surfaces on your axle housing. The tops and sides are usually OK unless they have been submerged in water, but the bottom takes all the load. If you need to repair the axle housing bearing surfaces, you might be better off buying another axle assembly.
I am not sure that Little Dearborn's departure is final but I can tell you that I bought a number of their wheel bearings and seals. I don't have them all sorted and organized yet but I did check and I have one BB 1225 in original box without the R. Not sure how that fits with Bob's bearing spec.

Dave

Bob C
Posts: 1260
Joined: April 24th, 2003, 11:50 am
Body Type: Mail truck, Stake tr
Model Year: 1931
Location: SO CAL

Re: Rear hub bearings

Post by Bob C » May 8th, 2017, 8:55 pm

Stakebed wrote:
May 8th, 2017, 7:36 pm
I thought little dearborn closed up shop...

Berts in Denver might be another best bet - if not them they would know who....
No, they are just moving and down sizing.

Bob

Jeff Brown
Posts: 101
Joined: May 26th, 2016, 9:57 am
Body Type: 82-A
Model Year: 1929
Location: Tucson AZ

Re: Rear hub bearings

Post by Jeff Brown » May 9th, 2017, 6:15 am

Thanks Dave, I'll take a good look at the housing when I get everything apart. This thing is fighting me all the way but hope to finish dismantling in the coming weekend. One side was full of oil where the seal had given up, and the other side is rusted up!

Jeff

Shorthaul
Posts: 322
Joined: November 15th, 2008, 8:18 am
Body Type: 186 stake
Model Year: 1931
Location: Hawthorne California

Re: Rear hub bearings

Post by Shorthaul » May 9th, 2017, 8:41 am

You mention finally pulling hubs and using a jack and heat. Did you determine what is holding the hub from coming off. Is it rust build-up, or is there a groove wore in the spindle, or whatever else. Also did you just keep applying pressure with the jack along with heat or did you eventually did you get to a point and then just keep heating. Thanks for your patience and help.

Jeff Brown
Posts: 101
Joined: May 26th, 2016, 9:57 am
Body Type: 82-A
Model Year: 1929
Location: Tucson AZ

Re: Rear hub bearings

Post by Jeff Brown » May 9th, 2017, 10:08 am

Strangely, when I finally got it off, there didn't seem to be any rust so not sure what was holding it. The axle actually looks good. I left the 30 ton jack on it overnight and kept tapping it with a hammer but it didn't budge. So I heated it with the gas torch as quickly as I could so the hub got hot and not the axle and then it finally let go with a heart stopping bang!

Jeff

Shorthaul
Posts: 322
Joined: November 15th, 2008, 8:18 am
Body Type: 186 stake
Model Year: 1931
Location: Hawthorne California

Re: Rear hub bearings

Post by Shorthaul » May 10th, 2017, 8:33 am

Thanks Jeff, I've tried before with about the same method Without your success, guess I'm going to have to make a sturdier extraction device and try again.

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Chris Haynes
Posts: 2071
Joined: September 7th, 2003, 5:18 pm
Body Type: 82A
Model Year: 1930
Location: North Hills, CA/ Pine Grove, CA

Re: Rear hub bearings

Post by Chris Haynes » May 10th, 2017, 11:12 am

I have the genuine Hub Puller from Ford for the 1930-1933 trucks. It is available to loan if you pay shipping both ways. It is heavy. :wink:

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AAholic
Posts: 234
Joined: October 27th, 2010, 7:24 pm
Body Type: 88-A
Model Year: 1931
Location: N.E.Illinois

Re: Rear hub bearings

Post by AAholic » May 11th, 2017, 9:31 pm

"Is it possible to get the outer races for these or should I to try and find a better hub? And if you can get them, how easy is it to get the old one out?"

Looking at some hubs I have on hand I see that one has an outer race that is a separate piece presumably pressed then riveted in while the other looks to be all one piece. (see attached photos)

Is the one a remanufactured item or a factory variant? The other a stock original or earlier design?
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Bob C
Posts: 1260
Joined: April 24th, 2003, 11:50 am
Body Type: Mail truck, Stake tr
Model Year: 1931
Location: SO CAL

Re: Rear hub bearings

Post by Bob C » May 12th, 2017, 9:19 am

According to the Service Letters the hubs without the sleeve came out in July 1931.

Bob

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dhetch
Posts: 54
Joined: May 16th, 2011, 5:48 am
Body Type: Stake Body
Model Year: 1928
Location: Lakeville, MN

Re: Rear hub bearings

Post by dhetch » May 12th, 2017, 11:09 am

I tried removing one of those inner races on a 28 (slightly shorter and smaller bearing) and was never able to move it before the end of the race (where the groove for the snap ring is) snapped off. Maybe the outcome would have been better if I had filled it with dry ice, but I would try it on your bad race first.
Good Luck
Dave

Jeff Brown
Posts: 101
Joined: May 26th, 2016, 9:57 am
Body Type: 82-A
Model Year: 1929
Location: Tucson AZ

Re: Rear hub bearings

Post by Jeff Brown » May 12th, 2017, 11:40 am

Thanks Dave, trying to find a better drum close to home if I can.

Jeff

Jeff Brown
Posts: 101
Joined: May 26th, 2016, 9:57 am
Body Type: 82-A
Model Year: 1929
Location: Tucson AZ

Re: Rear hub bearings

Post by Jeff Brown » May 21st, 2017, 6:21 pm

In this continuing saga, this weekend I finally got to cleaning all the gunk off my rear axle housings and found one of the bearing surfaces was pretty badly pitted - see photo
20170521_152214.jpg
. Is this beyond use? Or do I need to find another housing with a better bearing surface - and are they around, or all in a similar condition? Any opinions welcome!

Thanks

Jeff

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