Ping: Gene
 

wrote:
On Mar 6, 12:34?pm, Tim wrote:
I would think that even light (50-100cc) motorcycle chain would work
very well. Even packed full of mud and grit, under hard accelerated
torque, they put up with a lot more than 100 lb loads.



wrote:
Hey, Gene, I'm making a lift, sort of a dumbwaiter if you will. My
bar, screen room, patio, deck and pool are in the back of my house,
which is a daylight basement. Above is a deck coming off of my kitchen
one floor up. So, I'm thinking of using #25 carbon steel roller chain.
I'm guessing that the load would never be over 100 pounds on this
thing, unless my kids get to using it as an amusement ride! So, I got
to thinking, I wonder what the ultimate strength of #25 roller chain
is in tension? Do you have any idea where to find this information or
do you happen to have it handy? Thanks!- Hide quoted text -

- Show quoted text -

Yeah, I'm suspecting #25 to have an ultimate tensile strength of
around 700 pounds or so, so if the sprockets engage at least two teeth
fully, it should hold my two kids on it!!

BTW, from way past experience of hot-shoeing Bultaco's and Ossa's
around half mile tracks.... Unless they've changed some formulas.
"Diamond" was the last brand to use. I never had much luck with them.
At the time, not many people did.

then again, for light loading like you're mentioning. I'd think
Diamond brand would do just fine.

Ping: Gene
 

On Mar 6, 12:55*pm, Tim wrote:
wrote:
On Mar 6, 12:34?pm, Tim wrote:
I would think that even light (50-100cc) motorcycle chain would work
very well. Even packed full of mud and grit, under hard accelerated
torque, they put up with a lot more than 100 lb loads.

wrote:
Hey, Gene, I'm making a lift, sort of a dumbwaiter if you will. My
bar, screen room, patio, deck and pool are in the back of my house,
which is a daylight basement. Above is a deck coming off of my kitchen
one floor up. So, I'm thinking of using #25 carbon steel roller chain.

Ping: Gene
 

wrote:

Yeah, I'm suspecting #25 to have an ultimate tensile strength of
around 700 pounds or so, so if the sprockets engage at least two teeth
fully, it should hold my two kids on it!!

I'm not sure but I think the old rule was that a chain should wrap at
least 30% minimum of the sprocket. Of course that would depend on the
size of the gear as well.

Ping: Gene
 

wrote:


My first bike on the farm was a Honda Super 90!!!! Little street bike I
ran all over hell!

hard to tear 'em up even if you tried.

And like me, I'm sure you did.

My first Real bike was a '66 Honda CL160 then came the "Honna
Hunnert".

two of the best bikes I couldn't destroy!

Ping: Gene
 

On Mar 6, 1:58*pm, Tim wrote:
wrote:
My first bike on the farm was a Honda Super 90!!!! Little street bike I
ran all over hell!

hard to tear 'em up even if you tried.

And like me, I'm sure you did.

My first Real bike was a '66 Honda CL160 then came the "Honna
Hunnert".

two of the best bikes I couldn't destroy!

My first bike was a 76 Honda 450...street..

Ping: Gene
 

On Thu, 06 Mar 2008 09:12:26 -0500, HK wrote:

wrote:
Hey, Gene, I'm making a lift, sort of a dumbwaiter if you will. My
bar, screen room, patio, deck and pool are in the back of my house,
which is a daylight basement. Above is a deck coming off of my kitchen
one floor up. So, I'm thinking of using #25 carbon steel roller chain.
I'm guessing that the load would never be over 100 pounds on this
thing, unless my kids get to using it as an amusement ride! So, I got
to thinking, I wonder what the ultimate strength of #25 roller chain
is in tension? Do you have any idea where to find this information or
do you happen to have it handy? Thanks!


Any graduate engineer in the construction field would know where to find
that information.

Hell, I know where to find that information.

Nothing derogatory there!

Ping: Gene
 

On Thu, 06 Mar 2008 09:21:56 -0500, HK wrote:

wrote:
On Mar 6, 9:12 am, HK wrote:
wrote:
Hey, Gene, I'm making a lift, sort of a dumbwaiter if you will. My
bar, screen room, patio, deck and pool are in the back of my house,
which is a daylight basement. Above is a deck coming off of my kitchen
one floor up. So, I'm thinking of using #25 carbon steel roller chain.
I'm guessing that the load would never be over 100 pounds on this
thing, unless my kids get to using it as an amusement ride! So, I got
to thinking, I wonder what the ultimate strength of #25 roller chain
is in tension? Do you have any idea where to find this information or
do you happen to have it handy? Thanks!
Any graduate engineer in the construction field would know where to find
that information.

Hell, I know where to find that information.

Oh, really? You do know that the values change by manufacturer, don't
you?
You do know that different manufacturers use different grades of steel
IN their chain, don't you?
You do know that different manufacturers various chain parts, like
pins, rollers, standard links, make-up links, etc. vary a lot, don't
you?
In other words, you don't have a damned clue what you are talking
about, go back to watching your Drew Carey reruns.


I'm smart enough to call the tech support folks at a chain manufacturer
or distributor and ask, dummy.

Your question was, "Do you have any idea where to find this information?"

My answer was, "I know where to find that information.

D'oh.

Do you suppose these folks might have some answers?


http://www.diamondchain.com/


Idiot.

Nothing derogatory there! New thread time, Harry?

Ping: Gene
 

Ping: Gene
 

On Mar 6, 8:46*pm, DK wrote:
wrote:
On Mar 6, 12:34 pm, Tim wrote:
I would think that even light (50-100cc) motorcycle chain would work
very well. Even packed full of mud and grit, under hard accelerated
torque, they put up with a lot more than 100 lb loads.

wrote:
Hey, Gene, I'm making a lift, sort of a dumbwaiter if you will. My
bar, screen room, patio, deck and pool are in the back of my house,
which is a daylight basement. Above is a deck coming off of my kitchen
one floor up. So, I'm thinking of using #25 carbon steel roller chain.
I'm guessing that the load would never be over 100 pounds on this
thing, unless my kids get to using it as an amusement ride! So, I got
to thinking, I wonder what the ultimate strength of #25 roller chain
is in tension? Do you have any idea where to find this information or
do you happen to have it handy? Thanks!- Hide quoted text -
- Show quoted text -

Yeah, I'm suspecting #25 to have an ultimate tensile strength of
around 700 pounds or so, so if the sprockets engage at least two teeth
fully, it should hold my two kids on it!!

If they use the typical 4:1 ratio of ultimate to allowable loads then
you better have two kids weighing a hell of a lot less than 700#
combined. *That would have to be 87-1/2# each. *Are you including the
"dumb" kid in this equation (maybe your word was "stupid")? *He might
moronically swing around too much and strain the chain.

Hire an engineer.- Hide quoted text -

- Show quoted text -

4:1 isn't "typical" of anything you idiot. And you do realize that
there are sprockets involved don't you, idiot?

Ping: Gene