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How do I get the thing out of the thing?

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buckoW

Turbo Monkey
Mar 1, 2007
3,230
3,531
Champery, Switzerland
Slide hammer would be the best but I think you like other options…. What about making something like a Shimano pressfit bb extractor?
Thanks, we'll see what happens. It's on the truck in amazonland.
Bearing pullers with a slide hammer are so fuckin awesome when you already have one and you need it. The only problem is you rarely need it.
 

Jm_

sled dog's bollocks
Jan 14, 2002
16,276
7,273
AK
For some stuff like Hope hubs it really seems like they are intended to be tapped out with punches, not bearing pullers.

But for other stuff, having the bearing puller on hand is super nice.
 

Jm_

sled dog's bollocks
Jan 14, 2002
16,276
7,273
AK
Shit, I found my post, it was my hub, not my BB:

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1652240248232.png


The bearing had disintigrated, race was stuck in the hub, you can see this in the last two pictures, pulled the cage and free ball bearings out, used the blind bearing puller to get the race out. Damn glad I had that tool.
 

Sandwich

Pig my fish!
Staff member
May 23, 2002
19,660
3,749
borcester rhymes

I got one of these. There are cheaper, and if I intended on keeping it forever I would probably have picked a cheaper one. All of these things on amazon are the same shit just in a different box with a different "brand"...so why spend $10 more for "orion" vs. "mpow" or "BTSHub" or "Alltooetools". I need a 35mm collet that can expand to 38ish mm. Some of the cheaper kits don't have them, they stop at 32mm.
 

Sandwich

Pig my fish!
Staff member
May 23, 2002
19,660
3,749
borcester rhymes
Have you tried magnets yet?
kind of.

I have an induction stove. I figured I could heat up the steel race and that might just drop the thing out (plus maybe the vibrations???). It didn't work, there wasn't enough mass to engage the element.

I may try heating to 150*C/300F in the toaster oven later though. We'll see.
 

StiHacka

Compensating for something
Jan 4, 2013
20,256
11,280
What's happening?
kind of.

I have an induction stove. I figured I could heat up the steel race and that might just drop the thing out (plus maybe the vibrations???). It didn't work, there wasn't enough mass to engage the element.

I may try heating to 150*C/300F in the toaster oven later though. We'll see.
Umm, if you managed to heat the steel race, wouldn't it expand in place, making its extraction harder?

Edit: sniped by JBP.
 

Sandwich

Pig my fish!
Staff member
May 23, 2002
19,660
3,749
borcester rhymes
Yes, but it should transfer the heat to the surrounding aluminum which would expand faster at the same temperature. It also may free the corrosion, as many times heat can chase oil into places it won't work into by itself.

Regardless, I wanted to try it and I can't do anything until either the dremel or bearing puller gets here. Right now the frame is just chilling, waiting for me to pick a color and letting the pblaster soak
 

6thElement

Schrodinger's Immigrant
Jul 29, 2008
12,277
9,130
Given the melting point of steel is ~2500F, heat the frame gently to ~1250F and you should then be able to remove the steel race from the puddle of aluminium.

Then you'll just need to form the molten alu back into tubesets and tig back into a frame.

*you'll have to heat treat the frame afterwards
 

SuspectDevice

Turbo Monkey
Aug 23, 2002
4,049
227
Roanoke, VA
a little jewlers saw would be fine to cut that race.
but how the heck you not already have a dremel?
Your join date indicates that you have been on Ridemonkey since peak file/hammer/bend days of bike mechanic arts.
 

Westy

the teste
Nov 22, 2002
49,347
14,790
Sleazattle
a little jewlers saw would be fine to cut that race.
but how the heck you not already have a dremel?
Your join date indicates that you have been on Ridemonkey since peak file/hammer/bend days of bike mechanic arts.
"Why have the right tool for a job when you can use the wrong one?" -Sandwich (probably)
 

Sandwich

Pig my fish!
Staff member
May 23, 2002
19,660
3,749
borcester rhymes
K well cutting with the dremel was more challenging than I expected as I do not want to cut the head tube. There isn’t much clearance between the aluminum thing and the race. Tomorrow the mustard plug arrives and I’ll try that thing.
 

Sandwich

Pig my fish!
Staff member
May 23, 2002
19,660
3,749
borcester rhymes
I think I’m going to powder coat it and the frame will be sandblasted prior. I’ll probably take a little Emory cloth or fine grit sandpaper to it before then.
 

Westy

the teste
Nov 22, 2002
49,347
14,790
Sleazattle
I think I’m going to powder coat it and the frame will be sandblasted prior. I’ll probably take a little Emory cloth or fine grit sandpaper to it before then.
Tread lightly, There aren't too many critical dimensions on a bike, but that is one of them.