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Main
Date: 06 Aug 2007 14:57:16
From: DougC
Subject: Removing BB races? Without Proper Tool?....
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I have a cruiser bike (BMX 1-piece cranks) and can't get the BB bearing
races out. I knocked on them a bit from the inside but gave up because
they were just getting dinged and they weren't moving.
I am taking it to a shop anyway, but is there any way to do this
non-destructively without the actual tool? The headset bearing races
came out just by tapping them a bit from the opposite end with a metal
rod and hammer.
I know you need the tools to put them /back/ /in/, but that wasn't the
problem today.....
~
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Date: 07 Aug 2007 01:01:06
From: A Muzi
Subject: Re: Removing BB races? Without Proper Tool?....
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DougC wrote:
> I have a cruiser bike (BMX 1-piece cranks) and can't get the BB bearing
> races out. I knocked on them a bit from the inside but gave up because
> they were just getting dinged and they weren't moving.
-snip-
Smack 'em like you mean it.
They will move.
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971
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Date: 09 Aug 2007 09:10:02
From: * * Chas
Subject: Re: Removing BB races? Without Proper Tool?....
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"A Muzi" <am@yellowjersey.org > wrote in message
news:13bg2k6i9017853@corp.supernews.com...
> DougC wrote:
> > I have a cruiser bike (BMX 1-piece cranks) and can't get the BB
bearing
> > races out. I knocked on them a bit from the inside but gave up because
> > they were just getting dinged and they weren't moving.
> -snip-
>
> Smack 'em like you mean it.
> They will move.
>
> --
> Andrew Muzi
> www.yellowjersey.org
> Open every day since 1 April, 1971
He needs to get a BFH..... ;-)
Chas.
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Date: 06 Aug 2007 20:58:51
From: Nate Knutson
Subject: Re: Removing BB races? Without Proper Tool?....
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On Aug 6, 12:57 pm, DougC <dcim...@norcom2000.com > wrote:
> I have a cruiser bike (BMX 1-piece cranks) and can't get the BB bearing
> races out. I knocked on them a bit from the inside but gave up because
> they were just getting dinged and they weren't moving.
>
> I am taking it to a shop anyway, but is there any way to do this
> non-destructively without the actual tool? The headset bearing races
> came out just by tapping them a bit from the opposite end with a metal
> rod and hammer.
>
> I know you need the tools to put them /back/ /in/, but that wasn't the
> problem today.....
> ~
There is not really a commonly known/accessible way of getting them
out with zero percent chance of damage. There's no "actual tool" in
this case. You might try to figure out a small chunk of wood that you
could get in there that could hit two opposite sides of the race at
once. Or just figure out a way of using a small wood block as a punch.
Or if you haven't yet tried a really broad punch, that would be good.
On the bright side, if the BB does get messed up, even the nicest one
available, the Odyssey Dynatron, is still really cheap.
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Date: 06 Aug 2007 22:14:44
From: Joel Mayes
Subject: Re: Removing BB races? Without Proper Tool?....
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On 2007-08-06, DougC <dcimper@norcom2000.com > wrote:
> I have a cruiser bike (BMX 1-piece cranks) and can't get the BB bearing
> races out. I knocked on them a bit from the inside but gave up because
> they were just getting dinged and they weren't moving.
>
> I am taking it to a shop anyway, but is there any way to do this
> non-destructively without the actual tool? The headset bearing races
> came out just by tapping them a bit from the opposite end with a metal
> rod and hammer.
>
> I know you need the tools to put them /back/ /in/, but that wasn't the
> problem today.....
> ~
They should know out fine with a broad punch, were you moving the area
of impact around or just hammering at one place.
Cheers
Joel
--
Human Powered Cycles
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Date: 06 Aug 2007 22:14:30
From: landotter
Subject: Re: Removing BB races? Without Proper Tool?....
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On Aug 6, 2:57 pm, DougC <dcim...@norcom2000.com > wrote:
> I have a cruiser bike (BMX 1-piece cranks) and can't get the BB bearing
> races out. I knocked on them a bit from the inside but gave up because
> they were just getting dinged and they weren't moving.
>
> I am taking it to a shop anyway, but is there any way to do this
> non-destructively without the actual tool? The headset bearing races
> came out just by tapping them a bit from the opposite end with a metal
> rod and hammer.
>
> I know you need the tools to put them /back/ /in/, but that wasn't the
> problem today.....
> ~
Hammer and a punch is the official way to remove these, yarr! Friction
fit as far as I know.
http://parktool.com/repair/readhowto.asp?id=92
You can install using a large c-clamp and some blocks of wood.
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