Bearing race removal ***Update*** - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 09-20-2005, 07:00 PM Thread Starter
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Bearing race removal ***Update***

Okay, I consider myself to be pretty dang handy around most things mechanical, but I need some assistance.
I am replacing the rear wheel bearing on my Dana 44 and can't seem to get the old race out to install the new one.
When I rebuilt the axle I used a "slap" hammer with little jaws (WBCarver, wanna take a road trip to loan a tool? [img]/ubbthreads/images/graemlins/grin.gif[/img]), but I don't have access to that now and NAPA wants $75 for one. I tried using a pulley puller and reversing the jaws but it wouldn't really catch. I have thought of cutting it most of the way through and breaking it loose with a cold chisel, but I don't want to tear up the race area too bad.
Any other tidbits of wisdom?
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post #2 of (permalink) Old 09-20-2005, 07:21 PM
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Re: Bearing race removal

I'm assuming your just doing one side and can't drive it out from the opposite side.
If you have access to a arc welder .... just lay a 1 or 2 inch bead on the race. You'll be amazed, it comes right out. A tip that "Toad" gave me from the Jeepster board.
I used a stick but I bet a wire welder would work too?
[img]/ubbthreads/images/graemlins/RockOn.gif[/img]
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post #3 of (permalink) Old 09-20-2005, 07:24 PM Thread Starter
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Re: Bearing race removal

Hadn't heard of that. Yeah< i am replacing one side and repacking the other.
I guess the heat deforms it enough to work?
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post #4 of (permalink) Old 09-20-2005, 07:31 PM
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Re: Bearing race removal

I assume that's how it works but I know it works.
[img]/ubbthreads/images/graemlins/40BEER.gif[/img]
I broke my puller trying to get one out of a GM Corp Axle.
Use the old race to install the new one.
Good luck
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post #5 of (permalink) Old 09-20-2005, 08:43 PM
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Re: Bearing race removal

FWIW, I have used both methods mentioned...

- laying a heavy bead on it may let you slide it out, but you'll need a way to grab it... oh, it'll be HOT! [img]/ubbthreads/images/graemlins/laugh.gif[/img]
- I've also done the above, but quenched it VERY quickly and was able to shatter the race

- since I'm in the same boat as you (no 3jawed slaphammer or welder...NO, NO, NO!... that fluxcore "soldering gun" doesn't count!), I've had to resort to scoring it with a cutoff wheel and splitting it with a chisel... very easy when it's not recessed up in the housing... maybe a nearly spent cutoff (smaller dia.) or a pencil grinder/Dremel will get to it easier? Be sure to cut as deep as possible. I have cut them on a diagonal to miss "important parts" and allow the cut to go deeper...
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post #6 of (permalink) Old 09-20-2005, 10:13 PM
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Re: Bearing race removal

What about a 3 jaw puller, arms reversed and lay a stout piece of steel acrost the housing opening to push off of? I have a slide hammer puller that I use, they are expensive, but now that I have it I use it on all kinds of stuff. I noticed lisel has a neat little tool that they recently came out with that works like a wall anchor. Put it in straight then open it up, pulls the race out slick, but it cost about 80.00. I will stick with my 60.00 slide hammer.
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post #7 of (permalink) Old 09-21-2005, 07:38 AM
 
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Re: Bearing race removal

AutoZoo or Advance AP - loan-a-tool ?

They should have a slap hammer you can borrow.

The weld trick works because the weld shrinks when it cures.

Try sticking 2 pieces of steel together at 90* angle. Weld only one side of the "T" joint and watch what happens as it cools. You will wind up with about a 70/20 angle.

I have used that trick on blind bores where there was no getting a puller behind the race.

Another trick.
This is a poor-man's toggle - kinda like the
MAC Toggle puller
These are meant to go on a slap hammer, but might give you an idea of what I am about to TRY to describe.

Make an oval shape piece - or more accurately a round piece the same dia as the race and cut 2 sides off it to make a pseudo oval - it will slip in there sideways then rotate into place.

Then use some threaded rod and a big socket or piece of angle iron or whatever to make a puller.

If this explaination doesn't make sense - give me a call and maybe I can de-splain it better.
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post #8 of (permalink) Old 09-21-2005, 08:38 AM Thread Starter
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Re: Bearing race removal

Neither of the loan a tool places had one, only NAPA had one for sale.
I had thought of using the new race as a guide and cutting a piece of flat bar to fit behind it. Rotate it into place and then thread my dent puller into it. May make a poor man's slap hammer?
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post #9 of (permalink) Old 09-21-2005, 01:30 PM
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Re: Bearing race removal

if you have a welder handy.... just weld a bolt across the race and pry it out...or attach a hook and length of chain to the bolt...with something heavy attached to the other end of the chain.
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post #10 of (permalink) Old 09-21-2005, 01:34 PM
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Re: Bearing race removal

not sure on the D44, but on an AMC20, I have used a punch on one side and hammer it back into the housing basically rotating it 90 where the other side rotated out towards you, and then pull it out. don't know if that makes sence in writing..... but it works.
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