Can 25 grade bearings destroy lesser grade cones?

rbt gang--I believe I have suffered bull**** upon my ear, but as there
was a chance that the bull**** had a small chance of not being
bull****, I did not brave sparring directly with the bull****
yesterday...

D., at the LBS as I showed him a cone with two horrendous pits from
one of my bikes with cheepie Formula hubs, first suggested that the
damage could come from poor adjustment--a fair enough charge, I would
have guessed the same. At any rate, he comes to find out that I had
added a 25 grade ball to the hubs as they came packed with only 8 on
the drive side and he claims that one should never use 25 grade
bearings on "soft" races.

This sounds to me like utter bull****. Bearings are graded by
roundness, not hardness, no? Expose D. or let me have it like a man.

In article
,
landotter wrote:

rbt gang--I believe I have suffered bull**** upon my ear, but as
there was a chance that the bull**** had a small chance of not being
bull****, I did not brave sparring directly with the bull****
yesterday...

D., at the LBS as I showed him a cone with two horrendous pits from
one of my bikes with cheepie Formula hubs, first suggested that the
damage could come from poor adjustment--a fair enough charge, I would
have guessed the same. At any rate, he comes to find out that I had
added a 25 grade ball to the hubs as they came packed with only 8 on
the drive side and he claims that one should never use 25 grade
bearings on "soft" races.

This sounds to me like utter bull****. Bearings are graded by
roundness, not hardness, no? Expose D. or let me have it like a man.

http://www.faqs.org/faqs/bicycles-fa...section-2.html

Answers those questions. D. is blowing smoke on this. In fact, I would
think that using grade 25s would protect cheap cones better.

On Sep 21, 10:14 pm, Tim McNamara wrote:
In article
,



landotter wrote:
rbt gang--I believe I have suffered bull**** upon my ear, but as
there was a chance that the bull**** had a small chance of not being
bull****, I did not brave sparring directly with the bull****
yesterday...

D., at the LBS as I showed him a cone with two horrendous pits from
one of my bikes with cheepie Formula hubs, first suggested that the
damage could come from poor adjustment--a fair enough charge, I would
have guessed the same. At any rate, he comes to find out that I had
added a 25 grade ball to the hubs as they came packed with only 8 on
the drive side and he claims that one should never use 25 grade
bearings on "soft" races.

This sounds to me like utter bull****. Bearings are graded by
roundness, not hardness, no? Expose D. or let me have it like a man.

http://www.faqs.org/faqs/bicycles-fa...section-2.html

Answers those questions. D. is blowing smoke on this. In fact, I would
think that using grade 25s would protect cheap cones better.

Thought so. Thanx!

landotter wrote:
rbt gang--I believe I have suffered bull**** upon my ear, but as there
was a chance that the bull**** had a small chance of not being
bull****, I did not brave sparring directly with the bull****
yesterday...

D., at the LBS as I showed him a cone with two horrendous pits from
one of my bikes with cheepie Formula hubs, first suggested that the
damage could come from poor adjustment--a fair enough charge, I would
have guessed the same. At any rate, he comes to find out that I had
added a 25 grade ball to the hubs as they came packed with only 8 on
the drive side and he claims that one should never use 25 grade
bearings on "soft" races.

how could he possibly "find out" from the ball count??? unless you
fitted the wrong size ball and had to reduce the count to compensate.
what would explain your pitting problem too because the race is no
longer contoured correctly and thus point load is too high.

as to "grade 25", that's a roundness factor, not hardness. in that
respect, your lbs is "confused" - however, they /are/ right that you're
doing something wrong.



This sounds to me like utter bull****. Bearings are graded by
roundness, not hardness, no? Expose D. or let me have it like a man.

i think you just taught yourself a lesson. the lbs is the messenger.

Tim McNamara wrote:
In article
,
landotter wrote:

rbt gang--I believe I have suffered bull**** upon my ear, but as
there was a chance that the bull**** had a small chance of not being
bull****, I did not brave sparring directly with the bull****
yesterday...

D., at the LBS as I showed him a cone with two horrendous pits from
one of my bikes with cheepie Formula hubs, first suggested that the
damage could come from poor adjustment--a fair enough charge, I would
have guessed the same. At any rate, he comes to find out that I had
added a 25 grade ball to the hubs as they came packed with only 8 on
the drive side and he claims that one should never use 25 grade
bearings on "soft" races.

This sounds to me like utter bull****. Bearings are graded by
roundness, not hardness, no? Expose D. or let me have it like a man.

http://www.faqs.org/faqs/bicycles-fa...section-2.html

Answers those questions. D. is blowing smoke on this. In fact, I would
think that using grade 25s would protect cheap cones better.

timmy, that is an incredibly retarded cite because not only does it not
actually cover the topic, it propagates the myth about "matched" bearing
sets.

On Sep 21, 11:09 pm, jim beam wrote:
landotter wrote:
rbt gang--I believe I have suffered bull**** upon my ear, but as there
was a chance that the bull**** had a small chance of not being
bull****, I did not brave sparring directly with the bull****
yesterday...

D., at the LBS as I showed him a cone with two horrendous pits from
one of my bikes with cheepie Formula hubs, first suggested that the
damage could come from poor adjustment--a fair enough charge, I would
have guessed the same. At any rate, he comes to find out that I had
added a 25 grade ball to the hubs as they came packed with only 8 on
the drive side and he claims that one should never use 25 grade
bearings on "soft" races.

how could he possibly "find out" from the ball count??? unless you
fitted the wrong size ball and had to reduce the count to compensate.
what would explain your pitting problem too because the race is no
longer contoured correctly and thus point load is too high.

as to "grade 25", that's a roundness factor, not hardness. in that
respect, your lbs is "confused" - however, they /are/ right that you're
doing something wrong.

What is that exactly? Responding to you I assume.

/snort

landotter wrote:
On Sep 21, 11:09 pm, jim beam wrote:
landotter wrote:
rbt gang--I believe I have suffered bull**** upon my ear, but as there
was a chance that the bull**** had a small chance of not being
bull****, I did not brave sparring directly with the bull****
yesterday...
D., at the LBS as I showed him a cone with two horrendous pits from
one of my bikes with cheepie Formula hubs, first suggested that the
damage could come from poor adjustment--a fair enough charge, I would
have guessed the same. At any rate, he comes to find out that I had
added a 25 grade ball to the hubs as they came packed with only 8 on
the drive side and he claims that one should never use 25 grade
bearings on "soft" races.
how could he possibly "find out" from the ball count??? unless you
fitted the wrong size ball and had to reduce the count to compensate.
what would explain your pitting problem too because the race is no
longer contoured correctly and thus point load is too high.

as to "grade 25", that's a roundness factor, not hardness. in that
respect, your lbs is "confused" - however, they /are/ right that you're
doing something wrong.

What is that exactly? Responding to you I assume.

/snort

whoops, did i say something you didn't want to hear??? /so/ sorry about
that!

In article
,
landotter wrote:

On Sep 21, 11:09 pm, jim beam wrote:
landotter wrote:
rbt gang--I believe I have suffered bull**** upon my ear, but as
there was a chance that the bull**** had a small chance of not
being bull****, I did not brave sparring directly with the
bull**** yesterday...

D., at the LBS as I showed him a cone with two horrendous pits
from one of my bikes with cheepie Formula hubs, first suggested
that the damage could come from poor adjustment--a fair enough
charge, I would have guessed the same. At any rate, he comes to
find out that I had added a 25 grade ball to the hubs as they
came packed with only 8 on the drive side and he claims that one
should never use 25 grade bearings on "soft" races.

how could he possibly "find out" from the ball count??? unless you
fitted the wrong size ball and had to reduce the count to
compensate. what would explain your pitting problem too because the
race is no longer contoured correctly and thus point load is too
high.

as to "grade 25", that's a roundness factor, not hardness. in that
respect, your lbs is "confused" - however, they /are/ right that
you're doing something wrong.

What is that exactly? Responding to you I assume.

/snort

Well, to be fair, the bearing preload could have been incorrect.

On Sep 22, 7:34 am, Tim McNamara wrote:
In article
,



landotter wrote:
On Sep 21, 11:09 pm, jim beam wrote:
landotter wrote:
rbt gang--I believe I have suffered bull**** upon my ear, but as
there was a chance that the bull**** had a small chance of not
being bull****, I did not brave sparring directly with the
bull**** yesterday...

D., at the LBS as I showed him a cone with two horrendous pits
from one of my bikes with cheepie Formula hubs, first suggested
that the damage could come from poor adjustment--a fair enough
charge, I would have guessed the same. At any rate, he comes to
find out that I had added a 25 grade ball to the hubs as they
came packed with only 8 on the drive side and he claims that one
should never use 25 grade bearings on "soft" races.

how could he possibly "find out" from the ball count??? unless you
fitted the wrong size ball and had to reduce the count to
compensate. what would explain your pitting problem too because the
race is no longer contoured correctly and thus point load is too
high.

as to "grade 25", that's a roundness factor, not hardness. in that
respect, your lbs is "confused" - however, they /are/ right that
you're doing something wrong.

What is that exactly? Responding to you I assume.

/snort

Well, to be fair, the bearing preload could have been incorrect.

Bearing preload? Now you're talking bull****, with a hollow axle hub,
ya adjust so there's the slightest slop before you take it out with
tension from the Q/R lever. Or maybe we're out of jargon
alignment. ;-)

At any rate--the pitting was likely caused by riding with a missing
bearing, IMHO, as I can' t think of any other variable. Can't right
remember how far I rode them that way. I got the bike home, dialed in
the hubs first thing--but didnt count the balls till the hub seemed
noisy a week or so in...

Spent half an hour with a catalog and a caliper before ordering a
replacement...then pedaled the fixie back behind the alley, found a
good stash of tacoed Formula hubbed wheels...I'm coned for life.