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new chain, slack



 
 
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  #31  
Old December 24th 17, 05:52 AM posted to rec.bicycles.tech
Frank Krygowski[_2_]
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Posts: 7,511
Default new chain, slack

On Saturday, December 23, 2017 at 3:28:39 PM UTC-5, Emanuel Berg wrote:
Frank Krygowski wrote:

By pivot, I meant the pin and the plates
attached to it. The part that acts as
a hinge. The point is, to get wear in the
chain, you need pressure on the surfaces in
contact, and you need relative motion between
those surfaces.


OK, but is there a reason why you bring this up
in such detail?


Yes. I brought it up because you asked.

- Frank Krygowski
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  #32  
Old December 24th 17, 07:46 PM posted to rec.bicycles.tech
Tim McNamara
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Posts: 6,945
Default new chain, slack

On Sat, 23 Dec 2017 20:52:55 -0800 (PST), Frank Krygowski
wrote:
On Saturday, December 23, 2017 at 3:28:39 PM UTC-5, Emanuel Berg
wrote:
Frank Krygowski wrote:

By pivot, I meant the pin and the plates attached to it. The part
that acts as a hinge. The point is, to get wear in the chain, you
need pressure on the surfaces in contact, and you need relative
motion between those surfaces.


OK, but is there a reason why you bring this up in such detail?


Yes. I brought it up because you asked.


Well, it is rec.bicycles.TECH after all.
  #33  
Old December 24th 17, 07:50 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
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Posts: 1,035
Default new chain, slack

Frank Krygowski wrote:

OK, but is there a reason why you bring this
up in such detail?


Yes. I brought it up because you asked.


OK, thank you in that case.

--
underground experts united
http://user.it.uu.se/~embe8573
  #34  
Old December 24th 17, 10:21 PM posted to rec.bicycles.tech
AMuzi
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Posts: 13,447
Default new chain, slack

On 12/24/2017 12:50 PM, Emanuel Berg wrote:
Frank Krygowski wrote:

OK, but is there a reason why you bring this
up in such detail?


Yes. I brought it up because you asked.


OK, thank you in that case.


Your average guy imagines that the chain wears against the
teeth. This is not so. The chain roller doesn't turn or wear
against the tooth, chain wear is inside the chain.

--
Andrew Muzi
www.yellowjersey.org/
Open every day since 1 April, 1971


  #35  
Old December 24th 17, 11:04 PM posted to rec.bicycles.tech
[email protected]
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Posts: 6,374
Default new chain, slack

Not hijacking off course but we'll first believed new chain needs no new cog.

I need review of belief/understanding ect
For the solstice Celebration

Have I mentioned Uri Geller n I were born on the 20th ? more EQ ?

Merry Merry

Antone know what a wassail is ?

  #36  
Old December 25th 17, 12:12 AM posted to rec.bicycles.tech
Emanuel Berg[_2_]
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Posts: 1,035
Default new chain, slack

AMuzi wrote:

Your average guy imagines that the chain
wears against the teeth. This is not so.
The chain roller doesn't turn or wear against
the tooth, chain wear is inside the chain.


In that case I'm not average! *fanfare*

But I might be incorrect still.
Because I "imagine" that chain wear happens
from the transition "not pulling" to "pulling"
the load!

Is this so or is this also not so?

PS. BTW I'm out of printing paper so I haven't
read the long post you referenced earlier.
I run out of paper from making a fire
yesterday But I will read it. And I'm
not just saying that

--
underground experts united
http://user.it.uu.se/~embe8573
  #37  
Old December 26th 17, 05:00 AM posted to rec.bicycles.tech
Frank Krygowski[_4_]
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Posts: 10,538
Default new chain, slack

On 12/24/2017 6:12 PM, Emanuel Berg wrote:
AMuzi wrote:

Your average guy imagines that the chain
wears against the teeth. This is not so.
The chain roller doesn't turn or wear against
the tooth, chain wear is inside the chain.


In that case I'm not average! *fanfare*

But I might be incorrect still.
Because I "imagine" that chain wear happens
from the transition "not pulling" to "pulling"
the load!

Is this so or is this also not so?


If there were nothing to bend the links (as when they wrap or unwrap
around the sprockets), then applying and releasing tension would cause
essentially no wear at all. To get wear you need relative motion between
the parts, as well as some contact pressure.

--
- Frank Krygowski
  #38  
Old December 26th 17, 02:42 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
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Posts: 1,035
Default new chain, slack

Frank Krygowski wrote:

If there were nothing to bend the links (as
when they wrap or unwrap around the
sprockets), then applying and releasing
tension would cause essentially no wear at
all. To get wear you need relative motion
between the parts, as well as some
contact pressure.


"Relative motion between the parts", yes
of course.

What do you mean by "contact pressure"?

E.g., if you have a chain attached to a heavy
boulder and drag it back and forth, starting
and stopping, isn't there wear when the slack
chain turns stiff and pulls the boulder into
motion, after which load balances out over all
the links and the boulder moves forward in part
by its own momentum?

--
underground experts united
http://user.it.uu.se/~embe8573
  #39  
Old December 26th 17, 03:01 PM posted to rec.bicycles.tech
[email protected]
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Posts: 6,374
Default new chain, slack

?

Wear at the area of greatest pressure...

Buildup to there, brings diRT into the area

Dirt then finds overflow areas near GP for R/R

why is important shaking chain in solution bottle

asking questions is not unintelligent
  #40  
Old December 26th 17, 04:15 PM posted to rec.bicycles.tech
Emanuel Berg[_2_]
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Posts: 1,035
Default new chain, slack

avagadro7 wrote:

Wear at the area of greatest pressure...

[...]

Dirt then finds overflow areas near GP for R/R

[...]

asking questions is not unintelligent


OK, then what does R/R mean?

And where is GP? The links that turn and pull
the sprocket as that is smaller than the
chainring so more turning?

--
underground experts united
http://user.it.uu.se/~embe8573
 




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