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Technical & Reference Section => Tech and Restoration => Topic started by: Gtbill on December 30, 2007, 03:21 PM

Title: help with bb
Post by: Gtbill on December 30, 2007, 03:21 PM
need help to remove this bb usa  limited tools  :idiot2:
(http://www.radbmx.co.uk/archive/albums/ee23/billgt/S1010071.jpg)
Title: Re: help with bb
Post by: pickle on December 30, 2007, 04:11 PM
the only way i do it mate is with a bit of softish wood and a hammer and gently bang from ythe inside, going all the way round and trying to gently prize it out that way.

not sure if there's any magic way of doing them other than that mate?   :-\
Title: Re: help with bb
Post by: kuwahero on December 30, 2007, 04:12 PM
I dont think there is an actual tool for removing pressed bearings. Get a piece of wood or something soft like that ( dont use a screwdriver ) that fits through the centre and can be angled to sit on the inside edge of the bearing. Take care not to push on the shield or you might bust it.

Angle through the hole and use a mallet or hammer to gently tap them out a bit at a time. Just work round clockwise and it will slowly come out. If they were greased going in they shouldnt be too hard to get out.

I have a piece of dowel about 9inches long for doing this.

Good luck. Patience is the key.

Marc
Title: Re: help with bb
Post by: Gtbill on December 30, 2007, 04:17 PM
cheers   :daumenhoch:
Title: Re: help with bb
Post by: lazychubs on December 30, 2007, 04:48 PM
there is a proper tool to remove bearings
most gearbox shops have em
it opens up once inside then tap
or use a slide hammer
as they did my freewheel on me coaster
or use a 1/2 exstension bar
and gently tap the bearing out
Title: Re: help with bb
Post by: Rombloke on December 30, 2007, 08:07 PM
this is the proper tool for the job..

http://www.motosport.com/offroad/productDetail.php?psreferrer=http%253A%252F%252Fwww.nextag.com%252Fbearing-removal-tool%252Fsearch-html&prodId=540535&segment=badger-offroad

..but as rhys said, i personally use a 1/2'' drive extension  bar
Title: Re: help with bb
Post by: Dark Diggler on December 30, 2007, 08:32 PM
Drill the cnut  :daumenhoch:
Title: Re: help with bb
Post by: TwoBobRob on December 30, 2007, 10:45 PM
I've always used a good quality steel punch, knocking at 90 degree alternate points.  Never, ever had a problem.   :)
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