Campagnolo square-taper BB question?
Ronko
for approximate years 2000-2006 (10sp alloy) are interchangeable I
assume for either Chorus or Record cranks? And both have
rebuildable bearings? And finally do the Record and Chorus BB have
the same bearings or is there a difference?
thanks!
Lou Holtman
> The square tapers bottom brackets, specifically Chorus and Record,
> for approximate years 2000-2006 (10sp alloy) are interchangeable I
> assume for either Chorus or Record cranks?
Yes.
> And both have
> rebuildable bearings?
No. They use cartidge bearing which are not supposed te be replaced. I
did it once, I don't do it again. I replace the whole unit next time.
> And finally do the Record and Chorus BB have
> the same bearings or is there a difference?
No they are the same.
Lou
Ronko
2393f1...@a12g2000yqj.googlegroups.com>,
lou.h...@gmail.com says...
pressed off and on?
Ningi
> On 26 jan, 08:28, Ronko<ronkreu...@gmail.com> wrote:
>> The square tapers bottom brackets, specifically Chorus and Record,
>> for approximate years 2000-2006 (10sp alloy) are interchangeable I
>> assume for either Chorus or Record cranks?
>
> Yes.
>
>> And both have
>> rebuildable bearings?
>
> No. They use cartidge bearing which are not supposed te be replaced. I
> did it once, I don't do it again. I replace the whole unit next time.
>
I have replaced a single bearing on both a Record and a Chorus BB. It
wasn't the easiest job as I didn't have a good bearing puller but
spending �15 for a new bearing rather than �90 for a new BB seemed
worthwhile.
>> And finally do the Record and Chorus BB have
>> the same bearings or is there a difference?
>
> No they are the same.
>
The same skf bearings in both.
Pete
thirty-six
> In article <285993d5-41d3-4357-9beb-
> 2393f1712...@a12g2000yqj.googlegroups.com>,
> lou.holt...@gmail.com says...
>
>
>
> >On 26 jan, 08:28, Ronko <ronkreu...@gmail.com> wrote:
> >> The square tapers bottom brackets, specifically Chorus and
> Record,
> >> for approximate years 2000-2006 (10sp alloy) are
> interchangeable I
> >> assume for either Chorus or Record cranks?
>
> >Yes.
>
> >> And both have
> >> rebuildable bearings?
>
> >No. They use cartidge bearing which are not supposed te be
> replaced. I
> >did it once, I don't do it again. I replace the whole unit next time.
>
> >> And finally do the Record and Chorus BB have
> >> the same bearings or is there a difference?
>
> >No they are the same.
>
> >Lou
>
> Thanks. What were the issues about replacing the bearings? Had to be
> pressed off and on?
Campag seem to claim there may be problems of fatigue and so the axle
'warrants' replacement.
Lou Holtman
It's difficult to get the puller behind the bearings. I had to take it
to work. Grrrr.. On one side there is a pressfit lockring. Once removed
I didn't trust the pressfit anymore so I loctite the bearings. I had to
take to work again. Grrrr...
It's no rocket science but for me it is a matter of economics. I had to
pay about 37 euro for three new cartridge bearings. I have a new Chorus
unit for 60 euro. 23 euro is not worth it for me if I have to spend 1
hour of work. The unit lasts 25000 km.
Lou
thirty-six
> Op 26-1-2010 18:48, Ronko schreef:
>
>
>
> > In article<285993d5-41d3-4357-9beb-
> > lou.holt...@gmail.com says...
probably easier the second time because you know what you are up
against.
Ningi
If all 3 bearings had gone I'd also get a new BB. One mine only one had
gone so the economics made more sense.
Pete
Ronko
ni...@EGGSANDSPAMblueyonder.co.uk says...
Qui si parla Campagnolo
Same bearings, both 102mm, different, thin walled, welded in the
center spindle for Record. Yes, you canreplace bearings but it ain't
easy.
Qui si parla Campagnolo
> In article <285993d5-41d3-4357-9beb-
> 2393f1712...@a12g2000yqj.googlegroups.com>,
>
>
>
> >On 26 jan, 08:28, Ronko <ronkreu...@gmail.com> wrote:
> >> The square tapers bottom brackets, specifically Chorus and
> Record,
> >> for approximate years 2000-2006 (10sp alloy) are
> interchangeable I
> >> assume for either Chorus or Record cranks?
>
> >Yes.
>
> >> And both have
> >> rebuildable bearings?
>
> >No. They use cartidge bearing which are not supposed te be
> replaced. I
> >did it once, I don't do it again. I replace the whole unit next time.
>
> >> And finally do the Record and Chorus BB have
> >> the same bearings or is there a difference?
>
> >No they are the same.
>
> >Lou
>
> Thanks. What were the issues about replacing the bearings? Had to be
> pressed off and on?
Easy to get off, even the clip on the LH side. It's really hard to get
the retaining ring off the RH side w/o deforming it so when you put it
back it may interfere with the bearings causing a draggy bearing. I'm
batting about 50% when it comes to successfully changing these.
thirty-six
> > Thanks. What were the issues about replacing the bearings? Had to be
> > pressed off and on?
>
> Easy to get off, even the clip on the LH side. It's really hard to get
> the retaining ring off the RH side w/o deforming it so when you put it
> back it may interfere with the bearings causing a draggy bearing. I'm
> batting about 50% when it comes to successfully changing these.
Do the replacements ever get to be replaced or does the spindle break
first?
Lou Holtman
Never broke a spindle. Shimano nor Campagnolo. Only use Ultegra/XT and
up or Chorus and up.
Lou
thirty-six
So what is the count for repeated bearing replacement on a single
axle?