The Ford Barn

Lawrie · 04-02-2017, 03:54 PM

I have just done the second bearing repair mod for my spare 33 rear end.
This fixes the worn bearing area in the hub and on the axle area also.
I machined the hub out to 82.5 mm,then shrunk in a sleave,bored that to 80mm.The hub was easy to machine out after I used a new insert on the boring bar. BUT it is very hard.
machine the axle OD down to 50mm and press on the bearing inner.
The bearings are two roller ones with a total load capacity of 9.6 tons each side.and a limiting speed of 9500rpm ,so should be safe there.
Only draw back of this,I have to remove the brake drum from the hub to machine it as my lathe is not quite big enough to do it with it on.
Lawrie

And ,thanks for fixing the add photo part, Ryan.

meric42 · 04-02-2017, 05:01 PM

Nice work Lawrie, I have done a similar mod but using sealed ball bearings instead of roller bearings and found it to be a fantastic upgrade. I suspect that this mod should lessen the chance of breaking axles as well due to maintaining a more stable hub to housing alignment.

Lawrie · 04-02-2017, 05:11 PM

merc , the only drawback with sealed ball bearings is that there is no allowance for the axle to move in and out ,But if there was zero end float it would be OK, the rollers take a lot more load though ,
Lawrie

Mart · 04-02-2017, 05:53 PM

Excellent job, Lawrie. Would it be possible to give the exact bearing part numbers and the correct description of that type of bearing? Is the inner sleeve part of the bearing? (I mean bought, not made). What is the rough cost of those bearings?

I too had thought about the sealed ball bearing conversions and came to the conclusion that the in and out free play of the axle had not been taken into consideration.

Thanks for posting the pics and the how to description.

Mart.

JM 35 Sedan · 04-02-2017, 06:00 PM

Good work Lawrie. Looks like a good alternate approach for fixing an existing problem.

Lawrie · 04-02-2017, 08:05 PM

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Mart, the bearings are NU 1010, the inner is a special , you can use the inner that comes with the bearings ,but need to make another couple of spacers to go in between both the inners and outers.
no drama.
Lawrie

quickchange34 · 04-02-2017, 10:42 PM

Nice post, something of interest for a change.

Kpar · 04-03-2017, 04:29 AM

Lawrie, is the normal grease fitting maintained or is it just repack the bearings at klm's intervals ?.
Kpar

Lawrie · 04-03-2017, 05:09 AM

Keith,all the grease nipple stuff is still there,drop over and have a look, I,m just doing up a drawing.
lawrie

Ol' Ron · 04-03-2017, 06:41 AM

Atta Boy Mate. I love fixes like that. Good thinking. My lathe is a 13" P&W, but I have a friend with a 16" if I need it. Just replaced my 3 jaw chuck with a 90 year old one. Had to make a spindle adapter. Runout is only .002" pretty proud of that. Keep em Runnin
Ol Ron

04-02-2017, 05:01 PM	#2
meric42 Senior Member Join Date: Aug 2010 Location: Blenheim, New Zealand Posts: 879	Re: Rear hub bearing mod Nice work Lawrie, I have done a similar mod but using sealed ball bearings instead of roller bearings and found it to be a fantastic upgrade. I suspect that this mod should lessen the chance of breaking axles as well due to maintaining a more stable hub to housing alignment. __________________ I need an 01A 1453 Brkt Spare wheel hold down for my sedan delivery - PLEASE HELP Gotta love my '42 Sedan Delivery's - Now that I own the only two in New Zealand http://www.fordbarn.com/forum/album.php?albumid=580

04-02-2017, 05:11 PM	#3
Lawrie Senior Member Join Date: May 2010 Location: Qld, Australia Posts: 4,216	Re: Rear hub bearing mod merc , the only drawback with sealed ball bearings is that there is no allowance for the axle to move in and out ,But if there was zero end float it would be OK, the rollers take a lot more load though , Lawrie

04-02-2017, 05:53 PM	#4
Mart Senior Member Join Date: May 2010 Location: Solihull, England. Posts: 8,755	Re: Rear hub bearing mod Excellent job, Lawrie. Would it be possible to give the exact bearing part numbers and the correct description of that type of bearing? Is the inner sleeve part of the bearing? (I mean bought, not made). What is the rough cost of those bearings? I too had thought about the sealed ball bearing conversions and came to the conclusion that the in and out free play of the axle had not been taken into consideration. Thanks for posting the pics and the how to description. Mart.

04-02-2017, 06:00 PM	#5
JM 35 Sedan Senior Member Join Date: May 2010 Location: Near Rising Sun, Maryland Posts: 10,858	Re: Rear hub bearing mod Good work Lawrie. Looks like a good alternate approach for fixing an existing problem. __________________ *John* *"Never give up on what you really want to do. The person with big dreams is more powerful than one with all the facts". Albert Einstein*

04-02-2017, 08:05 PM	#6
Lawrie Senior Member Join Date: May 2010 Location: Qld, Australia Posts: 4,216	Re: Rear hub bearing mod Sponsored Links (Register now to hide all advertisements) Mart, the bearings are NU 1010, the inner is a special , you can use the inner that comes with the bearings ,but need to make another couple of spacers to go in between both the inners and outers. no drama. Lawrie

04-02-2017, 10:42 PM	#7
quickchange34 Senior Member Join Date: May 2010 Location: charlottesville, Va. Posts: 589	Re: Rear hub bearing mod Nice post, something of interest for a change.

04-03-2017, 04:29 AM	#8
Kpar Senior Member Join Date: Feb 2012 Location: Gladstone QLD Australia Posts: 324	Re: Rear hub bearing mod Lawrie, is the normal grease fitting maintained or is it just repack the bearings at klm's intervals ?. Kpar

04-03-2017, 05:09 AM	#9
Lawrie Senior Member Join Date: May 2010 Location: Qld, Australia Posts: 4,216	Re: Rear hub bearing mod Keith,all the grease nipple stuff is still there,drop over and have a look, I,m just doing up a drawing. lawrie

04-03-2017, 06:41 AM	#10
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,860	Re: Rear hub bearing mod Atta Boy Mate. I love fixes like that. Good thinking. My lathe is a 13" P&W, but I have a friend with a 16" if I need it. Just replaced my 3 jaw chuck with a 90 year old one. Had to make a spindle adapter. Runout is only .002" pretty proud of that. Keep em Runnin Ol Ron