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Need to find 8" wheels - 11/25/2007 6:25:31 PM   
Texan



Posts: 486
Joined: 12/20/2001
From: Georgetown, TX, USA
Status: offline 		I'm looking for a source of 8" wheels for my current project. The scale width is 2".

Thanks,
Scott
       Post #: 1

RE: Need to find 8" wheels - 11/25/2007 7:54:05 PM   
Mike Emilio


 

Posts: 538
Joined: 3/17/2003
From: TorontoOntario, CANADA
Status: offline 		http://www.genesis-rc.com/Wheels-page12.htm

But they are 2 1/2".
2" is rather thin for such a big tire. You might have to make up your own. Smooth-On componds, at about 80 or 90 durometer works pretty good.

< Message edited by Mike Emilio -- 11/25/2007 7:56:59 PM >

(in reply to Texan)
       Post #: 2

RE: Need to find 8" wheels - 11/25/2007 8:01:47 PM   
ByLoudDesign



Posts: 351
Joined: 9/19/2005
From: Mesa, AZ, USA
Status: offline 		Mike:
Where would a guy get material to say build his our tire? There are several places that would turn me a wheel, it is the tire that seems to be a big problem.

_____________________________

Projects on the board: Stinson SR-9, Orion P-3, Dornier DO-24,Canadair DC-4M2. Pilatus PC-9 Future Projects: Curtiss F11-C2, Osprey C-22, Canadair CL-415, Connie CL-121, Stinson Model A Gruman TBM,
bylouddesign.com "Scale without compromise"

(in reply to Mike Emilio)
       Post #: 3

RE: Need to find 8" wheels - 11/25/2007 8:32:40 PM   
Texan



Posts: 486
Joined: 12/20/2001
From: Georgetown, TX, USA
Status: offline 		Hi Mike,

Thanks for the link. I think those will work!!!

Scott

(in reply to Mike Emilio)
       Post #: 4

RE: Need to find 8" wheels - 11/26/2007 2:05:50 PM   
Mike Emilio


 

Posts: 538
Joined: 3/17/2003
From: TorontoOntario, CANADA
Status: offline 		I've used the products made by " Smooth-On"
Sold at a local casting outlet here in Toronto.


http://www.rubbermoldcompounds.com/liquid-rubber-product-line.htm


(in reply to Texan)
       Post #: 5

RE: Need to find 8" wheels - 11/26/2007 4:11:00 PM   
ByLoudDesign



Posts: 351
Joined: 9/19/2005
From: Mesa, AZ, USA
Status: offline 		Mike:
That is a cool site, one question after reviewing the chart. Is the "SHORE A HARDNESS" the same as "durometer". If not how do you compare the two? Tried looking for a large "O"-ring, can find lots of 8" OD x 1/2" ring section but not any bigger section measurements. Thinking I might use a couple to build the bead of the tire, a length of poly pipe insolution for a flexible core and then "Smooth-Sil" on the tread! What do your think? First I have to come up with the wheel, currently looking at making it of plastic (PVC) with maybe brass bearing surfaces.
Charlie

_____________________________

Projects on the board: Stinson SR-9, Orion P-3, Dornier DO-24,Canadair DC-4M2. Pilatus PC-9 Future Projects: Curtiss F11-C2, Osprey C-22, Canadair CL-415, Connie CL-121, Stinson Model A Gruman TBM,
bylouddesign.com "Scale without compromise"

(in reply to Mike Emilio)
       Post #: 6

RE: Need to find 8" wheels - 11/26/2007 4:45:23 PM   
Mike Emilio


 

Posts: 538
Joined: 3/17/2003
From: TorontoOntario, CANADA
Status: offline 		Difference between Shore & Durometer.

Shore hardness, and I'm thinking specifically of the Shore Scleroscope is quite common in determining hardness in metals. The Shore Scleroscope measure the rebound height of a diamond tiped hammer.

The "A" hardness is a conversion scale.

Durometer, is strickly a measure of softer materials, like nylon, rubber, urethanes, etc

http://en.wikipedia.org/wiki/Hardness#Rebound_hardness

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< Message edited by Mike Emilio -- 11/26/2007 4:53:43 PM >

(in reply to ByLoudDesign)
       Post #: 7

RE: Need to find 8" wheels - 11/26/2007 7:39:00 PM   
Mike Emilio


 

Posts: 538
Joined: 3/17/2003
From: TorontoOntario, CANADA
Status: offline 		ByLoudDesign, , ,

Do a search for "o-ring cord", you'll get a bunch of hits.


Typical
http://www.elastoseal.com/o-ring_cord.htm

This place has it up to 1" cross section. Other sites might have even larger sizes of cord.


For the black rubber types:
Simply cut a piece of the cord for the desired diameter, join the ends with CA.



< Message edited by Mike Emilio -- 11/26/2007 7:42:18 PM >

(in reply to Mike Emilio)
       Post #: 8

RE: Need to find 8" wheels - 11/26/2007 8:20:19 PM   
ByLoudDesign



Posts: 351
Joined: 9/19/2005
From: Mesa, AZ, USA
Status: offline 		I should have remembered that I onece had to make "O"-rings for the big klystron in our air search radar because someone screwed up and we didn't have a orderable part for about 6 months. Thanks will surely do a search!

_____________________________

Projects on the board: Stinson SR-9, Orion P-3, Dornier DO-24,Canadair DC-4M2. Pilatus PC-9 Future Projects: Curtiss F11-C2, Osprey C-22, Canadair CL-415, Connie CL-121, Stinson Model A Gruman TBM,
bylouddesign.com "Scale without compromise"

(in reply to Mike Emilio)
       Post #: 9

RE: Need to find 8" wheels - 11/26/2007 8:39:36 PM   
ByLoudDesign



Posts: 351
Joined: 9/19/2005
From: Mesa, AZ, USA
Status: offline 		http://www.epm.com/cord_inch.htm

Look what I found! Thanks to you! Use a little "Smoot-Sil" and away we go, into the wild blue yonder!

_____________________________

Projects on the board: Stinson SR-9, Orion P-3, Dornier DO-24,Canadair DC-4M2. Pilatus PC-9 Future Projects: Curtiss F11-C2, Osprey C-22, Canadair CL-415, Connie CL-121, Stinson Model A Gruman TBM,
bylouddesign.com "Scale without compromise"

(in reply to ByLoudDesign)
       Post #: 10

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