External bearings

Just to start someone counting, adding to anecdotal history.
FSA SLK MegaExo - someone put marbles in the BB.
Lasted less than 4000km.
Since it's there, what is the best cure?
Replacing the bearings in the casings, or replacing the cup-bearing
assembly.
And, can someone offer a grade, size and good manufacturer reference for the
bearings?

Thanks in advance.
--
Sandy
Verneuil-sur-Seine
*******

La vie, c'est comme une bicyclette,
il faut avancer pour ne pas perdre l'équilibre.
-- Einstein, A.

On Jul 28, 3:50 am, "Sandy" wrote:
Just to start someone counting, adding to anecdotal history.
FSA SLK MegaExo - someone put marbles in the BB.
Lasted less than 4000km.
Since it's there, what is the best cure?
Replacing the bearings in the casings, or replacing the cup-bearing
assembly.

Phil Wood makes some great replacement bearings for these and other
external cups. Long lastingf, well made, unlike it seems the FSA
bearings.

And, can someone offer a grade, size and good manufacturer reference for the
bearings?

Thanks in advance.
--
Sandy
Verneuil-sur-Seine
*******

La vie, c'est comme une bicyclette,
il faut avancer pour ne pas perdre l'équilibre.
-- Einstein, A.

On Jul 28, 8:27 am, Qui si parla Campagnolo
wrote:
On Jul 28, 3:50 am, "Sandy" wrote:

Just to start someone counting, adding to anecdotal history.
FSA SLK MegaExo - someone put marbles in the BB.
Lasted less than 4000km.
Since it's there, what is the best cure?
Replacing the bearings in the casings, or replacing the cup-bearing
assembly.

Phil Wood makes some great replacement bearings for these and other
external cups. Long lastingf, well made, unlike it seems the FSA
bearings.



And, can someone offer a grade, size and good manufacturer reference for the
bearings?

Thanks in advance.
--
Sandy
Verneuil-sur-Seine
*******

La vie, c'est comme une bicyclette,
il faut avancer pour ne pas perdre l'équilibre.
-- Einstein, A.- Hide quoted text -

- Show quoted text -

I'll second that. Phil will be your best choice when it comes to
durability. Make sure you keep the plastic covers since phil only
supplies the bearings.

steve

Dans le message de
oups.com,
steve a réfléchi, et puis a déclaré :
On Jul 28, 8:27 am, Qui si parla Campagnolo
wrote:
On Jul 28, 3:50 am, "Sandy" wrote:

Just to start someone counting, adding to anecdotal history.
FSA SLK MegaExo - someone put marbles in the BB.
Lasted less than 4000km.
Since it's there, what is the best cure?
Replacing the bearings in the casings, or replacing the cup-bearing
assembly.

Phil Wood makes some great replacement bearings for these and other
external cups. Long lastingf, well made, unlike it seems the FSA
bearings.



And, can someone offer a grade, size and good manufacturer
reference for the bearings?

Thanks in advance.
--
Sandy
Verneuil-sur-Seine
*******

La vie, c'est comme une bicyclette,
il faut avancer pour ne pas perdre l'équilibre.
-- Einstein, A.- Hide quoted text -

- Show quoted text -

I'll second that. Phil will be your best choice when it comes to
durability. Make sure you keep the plastic covers since phil only
supplies the bearings.

steve

Thanks, both of you, but I wasn't aware that Phil made the bearings, or does
he?
He doesn't get them from a manufacturer?
Ordering from "Phil" may not be the ideal thing from where I sit.
Any other leads?
--
Bonne route !

Sandy
Verneuil-sur-Seine FR

Sandy wrote:
Just to start someone counting, adding to anecdotal history.
FSA SLK MegaExo - someone put marbles in the BB.
Lasted less than 4000km.
Since it's there, what is the best cure?
Replacing the bearings in the casings, or replacing the cup-bearing
assembly.
And, can someone offer a grade, size and good manufacturer reference for the
bearings?

Thanks in advance.

first things first - see if there's a reason for this. check the bb
facings for parallelism and have them refinished if necessary. [that
was the great thing about the shimano bb cartridge system - the bb
needed minimal prep.]

regarding bearings, do they have a number etched into the metal facing
or on the seal? something like 6901-2rs or whatever? if so, you should
have a multitude of industrial supply houses able to sell you new
bearings. go for a good quality euro or usa or japanese manufacturer.
avoid the cheap chinese stuff which fsa use as oem. timken, fag, nsk,
skf, etc. are great names. if you visit the supply store, take the old
bearings with you to show them.

Sandy wrote:
Dans le message de
oups.com,
steve a r�fl�chi, et puis a d�clar� :
On Jul 28, 8:27 am, Qui si parla Campagnolo
wrote:
On Jul 28, 3:50 am, "Sandy" wrote:

Just to start someone counting, adding to anecdotal history.
FSA SLK MegaExo - someone put marbles in the BB.
Lasted less than 4000km.
Since it's there, what is the best cure?
Replacing the bearings in the casings, or replacing the cup-bearing
assembly.
Phil Wood makes some great replacement bearings for these and other
external cups. Long lastingf, well made, unlike it seems the FSA
bearings.



And, can someone offer a grade, size and good manufacturer
reference for the bearings?
Thanks in advance.
--
Sandy
Verneuil-sur-Seine
*******
La vie, c'est comme une bicyclette,
il faut avancer pour ne pas perdre l'�quilibre.
-- Einstein, A.- Hide quoted text -
- Show quoted text -
I'll second that. Phil will be your best choice when it comes to
durability. Make sure you keep the plastic covers since phil only
supplies the bearings.

steve

Thanks, both of you, but I wasn't aware that Phil made the bearings, or does
he?

he doesn't. he does however spec the grade, lube and seals, for what
that's worth. a decent manufacturer of the same spec will be just as good.

He doesn't get them from a manufacturer?
Ordering from "Phil" may not be the ideal thing from where I sit.
Any other leads?

"Sandy" wrote:
Just to start someone counting, adding to anecdotal history.
FSA SLK MegaExo - someone put marbles in the BB.
Lasted less than 4000km.
Since it's there, what is the best cure?
Replacing the bearings in the casings, or replacing the cup-bearing
assembly.

Qui si parla Campagnolo wrote:
Phil Wood makes some great replacement bearings for these and other
external cups. Long lastingf, well made, unlike it seems the FSA
bearings.

steve a réfléchi, et puis a déclaré :
And, can someone offer a grade, size and good manufacturer
reference for the bearings?

I'll second that. Phil will be your best choice when it comes to
durability. Make sure you keep the plastic covers since phil only
supplies the bearings.

Sandy wrote:
Thanks, both of you, but I wasn't aware that Phil made the bearings, or does
he?
He doesn't get them from a manufacturer?
Ordering from "Phil" may not be the ideal thing from where I sit.
Any other leads?

Phil has always specified the bearing tolerance range from their vendor
then filled the cartridges with Phil grease. Good history of
consistently high quality and long life.
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971

Dans le message de ,
A Muzi a réfléchi, et puis a déclaré :
"Sandy" wrote:
Just to start someone counting, adding to anecdotal history.
FSA SLK MegaExo - someone put marbles in the BB.
Lasted less than 4000km.
Since it's there, what is the best cure?
Replacing the bearings in the casings, or replacing the
cup-bearing assembly.

Qui si parla Campagnolo wrote:
Phil Wood makes some great replacement bearings for these and other
external cups. Long lastingf, well made, unlike it seems the FSA
bearings.

steve a réfléchi, et puis a déclaré :
And, can someone offer a grade, size and good manufacturer
reference for the bearings?

I'll second that. Phil will be your best choice when it comes to
durability. Make sure you keep the plastic covers since phil only
supplies the bearings.

Sandy wrote:
Thanks, both of you, but I wasn't aware that Phil made the bearings,
or does he?
He doesn't get them from a manufacturer?
Ordering from "Phil" may not be the ideal thing from where I sit.
Any other leads?

Phil has always specified the bearing tolerance range from their
vendor then filled the cartridges with Phil grease. Good history of
consistently high quality and long life.

Again, Mr Muzi, I am grateful and now more fully informed.
However, it could just be a mite easier to get one locally, in France.
I had two tubes of Phil green long ago, and did like the results.

--
Sandy

Ce n'est pas que j'ai peur de la mort.
Je veux seulement ne pas être là
quand elle arrivera.

On Sat, 28 Jul 2007 09:31:44 -0700, jim beam
wrote:

Sandy wrote:
Just to start someone counting, adding to anecdotal history.
FSA SLK MegaExo - someone put marbles in the BB.
Lasted less than 4000km.
Since it's there, what is the best cure?
Replacing the bearings in the casings, or replacing the cup-bearing
assembly.
And, can someone offer a grade, size and good manufacturer reference for the
bearings?

Thanks in advance.

first things first - see if there's a reason for this. check the bb
facings for parallelism and have them refinished if necessary. [that
was the great thing about the shimano bb cartridge system - the bb
needed minimal prep.]

This is borne out by the FSA manual:

"Ensure that the BB shell ends are faced and square and
clean from paint"

http://www.fullspeedahead.com/downlo...4-07%20PDF.pdf

regarding bearings, do they have a number etched into the metal facing
or on the seal? something like 6901-2rs or whatever? if so, you should
have a multitude of industrial supply houses able to sell you new
bearings.

The cartridge bearing number for FSA Mega Exo is 5805-2RS (inner
diameter 25mm, outer diameter 37mm, width 7mm) . There are
innumerable sources for these online and locally, both bearing and
bicycle retailers. The price/quality ranges from very low for the
cheap stainless that come stock from FSA, higher for stainless ABEC 5,
and much higher for ceramic ABEC 7. Choose your poison. If don't
want to get your frame bb threads faced, buy 10 on e-bay for $17.00 US
and they should keep you in business for years.
http://cgi.ebay.com/10-6805-2RS-Ball... QcmdZViewItem

Then of course you have to remove the old and install the new.

As I mentioned in another thread, that is not so cheap and easy. You
need a Park BBT-9 or an FSA spanner to get the cups off
http://www.fullspeedahead.com/fly.as...id=228&pid=404
http://search.smartbikeparts.com/pag...ils&sku=TL4592

You need to pry of the bearing cover without cracking or breaking it.
If you do, buy a bag from FSA @ $3.00 US/ea
http://www.fullspeedahead.com/fly.as...id=228&pid=398

You need to remove the bearings, either with the right tool
http://www.fullspeedahead.com/fly.as...id=228&pid=398

or the low tech jury rig approach: fix the cups in a wooden vice, and
whack the cartridge with a rubber mallet and a 27.2 mm seatpost (which
in narrow enough to fit into the cup and is wide enough to safely
dislodge the 25mm i.d. cartridge).

Install the new ones either with the right tool above, or the rubber
mallet.

Next hint. If you have carbon cranks, ABSOLUTELY USE LOCKTITE 641 on
the crank splines as instructed in the manual, as well as blue
locktite on the crank bolt. That way you can get the crank to stay
snugly on without binding the new bearings you just installed. The
slightest extra torque from the crank bolt will noticeably impede the
crank rotation.

On Sat, 28 Jul 2007 17:12:23 -0400, Doug Taylor
wrote:

The cartridge bearing number for FSA Mega Exo is 5805-2RS (inner
diameter 25mm, outer diameter 37mm, width 7mm) .

Typo! 6805-2RS