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Old 07-31-2022, 04:18 PM   #1
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How to remove a brake drum race using a shop press?

Hello all--

I wanted to see if anyone has a method for removing brake drum/hub bearing races from trailer brake drums using a simple shop press.

I know there are kits that use machined alum discs of various sizes to install races and seals (either with a hammer, press, and air hammer) but have never seen how to remove them using a shop press.

I know how to remove races using a brass drift and hammer. You must access race at an angle, as the race can not be hit vertically with the drift. This is what makes using a press a challenge.

So.....how can races be removed from brake drums using a shop press?

Maybe it's so simple, I can't see it or think of it!!!

Thanks!
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Old 07-31-2022, 04:38 PM   #2
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Quote:
Originally Posted by SoCalAngler View Post
Hello all--

I wanted to see if anyone has a method for removing brake drum/hub bearing races from trailer brake drums using a simple shop press.

I know there are kits that use machined alum discs of various sizes to install races and seals (either with a hammer, press, and air hammer) but have never seen how to remove them using a shop press.

I know how to remove races using a brass drift and hammer. You must access race at an angle, as the race can not be hit vertically with the drift. This is what makes using a press a challenge.

So.....how can races be removed from brake drums using a shop press?

Maybe it's so simple, I can't see it or think of it!!!

Thanks!
A drift and a two pound hammer, once you clean up all of the grease you should
see cut-outs used to place the drift head. Whack it out and use the old race to install the new one, then tap out the old one and reassemble with the new bearings and seal. Don't forget to pack the new bearings with the proper grease.
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Old 07-31-2022, 04:45 PM   #3
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If you have access to a welder, run a bead half way around the race. Keep the bead off the casting. TIG or MIG is suggested, but I have used arc successfully. Weld your bead and turn the casting over so the race falls out. Good luck with your project.
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Old 07-31-2022, 04:49 PM   #4
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Quote:
Originally Posted by SoCalAngler View Post
Hello all--

I wanted to see if anyone has a method for removing brake drum/hub bearing races from trailer brake drums using a simple shop press.

I know there are kits that use machined alum discs of various sizes to install races and seals (either with a hammer, press, and air hammer) but have never seen how to remove them using a shop press.

I know how to remove races using a brass drift and hammer. You must access race at an angle, as the race can not be hit vertically with the drift. This is what makes using a press a challenge.

So.....how can races be removed from brake drums using a shop press?

Maybe it's so simple, I can't see it or think of it!!!

Thanks!
Having been in the trade over 50 years, the standard practice is driving the races out with punch and drilling hammer. Sometimes hub mfg. allow 2 scallops in the casting to have access to the bottom of the race, not always.

Always, the hub itself should be supported, never the drum or wheel studs.

The only way I could see pressing out a race would be with a driver machined to just under casting hole diameter. If you have a lathe and the time, it could be done.

Pressing new races in with the cone adapters would be fine. I've always liked the feel and sound of bottoming by hand, myself. Reassures me it's not hanging on a burr.
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Old 07-31-2022, 06:57 PM   #5
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As mentioned, I do know how to remove with drift and hammer.

I wanted to know if anyone has removed races with a press.

I may still remove with brass drift and hammer/baby sledge, if a press method is not found.

I may install with a press, as coming in from opposite side for installation allows for direct vertical access to the circumference of the race, thus allowing for a large socket or aluminum discs (found in bearing/seal install sets) to be used.
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Old 07-31-2022, 07:14 PM   #6
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They sell internal bearing collet sets that are meant to be used with a slide hammer. They go in from the larger end of the race and then are expanded so that fingers grip the race. This only works if the race isn't bottomed out in a way that theres no gap for the collet fingers to grip. Like I said, they're meant to be used with a slide hammer, but once they're gripping the race you can then set them up in a press to push them out.

Sets are available in various size ranges so make sure that if you buy a set it has the collet that's the correct size for your bearing. Harbor Freight sells a set. You can also buy individual collets from other sources to get only the size you need. That's a lot cheaper than buying a set.

If the race is bottomed out in a way that a collet won't work then running a weld bead on the inside to shrink it so it falls out is a good solution.
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Old 07-31-2022, 07:16 PM   #7
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Quote:
Originally Posted by SoCalAngler View Post
As mentioned, I do know how to remove with drift and hammer.

I wanted to know if anyone has removed races with a press.

I may still remove with brass drift and hammer/baby sledge, if a press method is not found.

I may install with a press, as coming in from opposite side for installation allows for direct vertical access to the circumference of the race, thus allowing for a large socket or aluminum discs (found in bearing/seal install sets) to be used.
You may have missed the part of my reply that addressed your question:

The only way I could see pressing out a race would be with a driver machined to just under casting hole diameter. If you have a lathe and the time, it could be done.

I did fail to mention this would only work on the outer bearing race. I know of no way possible to press out an inner race since the access is smaller than the i.d. of the race.
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Old 07-31-2022, 07:34 PM   #8
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Originally Posted by Punkinhead View Post
They sell internal bearing collet sets that are meant to be used with a slide hammer. They go in from the larger end of the race and then are expanded so that fingers grip the race. This only works if the race isn't bottomed out in a way that theres no gap for the collet fingers to grip. Like I said, they're meant to be used with a slide hammer, but once they're gripping the race you can then set them up in a press to push them out.

Sets are available in various size ranges so make sure that if you buy a set it has the collet that's the correct size for your bearing. Harbor Freight sells a set. You can also buy individual collets from other sources to get only the size you need. That's a lot cheaper than buying a set.

If the race is bottomed out in a way that a collet won't work then running a weld bead on the inside to shrink it so it falls out is a good solution.
Your idea might work for the OP's issue. I have used slide hammer collet pullers many times. Mostly for axle bearings that pulled out as an assembly. But I see it could grip a race as long as it clears the cast hole.

Looked at Harbor Freight and could not find it. Doesn't mean they don't have it. Did find a reasonably priced set on Amazon I hoped would at least show the idea.

"Orion Motor Tech Blind Hole Collet Bearing Race and Seal Puller Extractor Kit"

They want $67 for it. No idea if sizes will work.
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Old 08-01-2022, 07:14 AM   #9
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You could try a socket that catches the edges of the race as a driver for the ram. Keep an old race for when you have them out and are ready to install the new ones. Grind a slot into the old one so the diameter can be shrunk down a bit by squeezing it. Use it to press in the new one.
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Old 08-01-2022, 08:40 AM   #10
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Or you could use this non-existent tool
https://www.harborfreight.com/3-jaw-...CABEgLoVfD_BwE
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Old 08-01-2022, 05:11 PM   #11
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Thank you all for the ideas and advice.

The welded bead is a good idea that I may try one day when I get a decent welder.

The HF tool may work, but the three prongs appear too thick to grab the small edge area for the inner races.

Machining a custom tool would be the best method, if I had a lathe.

Found this and his idea is pretty simple and effective.....




I may stick to the age old method of my brass drift and hammer for removal. If I do not have the correct size socket to install the race, I may purchase this set; it appears to be of good quality and has the option to use a hammer or air hammer....

https://www.harborfreight.com/alumin...-pc-58262.html
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Old 08-01-2022, 07:54 PM   #12
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Quote:
Originally Posted by SoCalAngler View Post
Thank you all for the ideas and advice.

The welded bead is a good idea that I may try one day when I get a decent welder.

The HF tool may work, but the three prongs appear too thick to grab the small edge area for the inner races.

Machining a custom tool would be the best method, if I had a lathe.

Found this and his idea is pretty simple and effective.....




I may stick to the age old method of my brass drift and hammer for removal. If I do not have the correct size socket to install the race, I may purchase this set; it appears to be of good quality and has the option to use a hammer or air hammer....

https://www.harborfreight.com/alumin...-pc-58262.html
I learned a new technique, thank you. That wedge press tool the You Tube guy made is pretty neat. Could see that working well with 4 contact points. Have a press, may just make me a tool.

Also, I own a set of the installers you linked. They work very well. Soft enough to not mar the races, strong enough to drive them in.
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Old 08-02-2022, 08:37 PM   #13
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Cutting torch if it won’t drive out, no big deal
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Old 08-02-2022, 08:49 PM   #14
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Given the variation in castings it would be difficult to make a tool that would fit on the shoulders of the race to remove it. I miss the two or three reliefs in the casting to expose the entire bottom of the race, sure made it easy to get a punch on them.

Snap-On makes special hardened steel punches with oval ends for removing bearing races.

Not sure why you want to use the press, it probably will take longer to set it up to drive them out that if you simply used a punch on a wood block on the floor. I have used brass punches for lots of things, but they don't work well on this.

https://shop.snapon.com/categories/O...Punches/675265

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