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dkwarner
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Join Date: May 2006
Location: Placerville, CA (38° 45N, 120° 47'W)
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What Do You Call this Kind of Timing Belt?

12/20/2014 6:15 PM

I need to modify a machine built elsewhere. I have searched several sources, but have not found the kind of timing belt/sprocket used in the machine. I'm probably using the wrong terminology...

The belt has a 1/4 inch pitch and is 0.315" wide. It is plastic, and appears to have steel cables along the sides, enclosed within the plastic. The "rungs" of the "ladder" have a round cross-section with a diameter varying from 0.125" to a bit over 0.130".

Can anyone tell me what it is called and/or where to buy the belts?

Thanks!

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lyn
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#1

Re: What do you call this kind of timing belt?

12/20/2014 6:29 PM

In a former company I/we bought many thousands of feet of chain of plastic, titanium and 316 SS from:

Roller Chains - Wheeling, Illinois - U.S. Tsubaki
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Fredski
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#2

Re: What do you call this kind of timing belt?

12/20/2014 6:31 PM

http://www.millerbearings.com/Products/Chain-Drives-and-Sprockets
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dkwarner
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#3
In reply to #2

Re: What do you call this kind of timing belt?

12/20/2014 6:48 PM

WOW! Both you and Lyn came with replies really fast, and I appreciate that, especially on a weekend.

Unfortunately, I tried both the links provided, but did NOT find the specific kind of belt I'm looking for. This is NOT Roller chain. It is a single molded plastic belt with cables on each side.

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Fredski
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#4
In reply to #3

Re: What do you call this kind of timing belt?

12/20/2014 6:59 PM

call em both, they'll know
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lyn
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#6
In reply to #3

Re: What do you call this kind of timing belt?

12/20/2014 7:14 PM

Picky aren't you.

Download Catalog Inch Section A PDF - WM Berg

OPERATING NOTES:Due to the unique design of molded polyurethane over a Stainless Steel cable, the gear drive chains offer a strong, flexible, quiet, lube-free drive system that can obtain zero backlash .

Merry Christmas.

<edit> Tornado is right, I think.
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Tornado
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#5

Re: What do you call this kind of timing belt?

12/20/2014 7:11 PM

I don't recall for sure, but these guys might have it: http://www.wmberg.com/

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dkwarner
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#8
In reply to #5

Re: What do you call this kind of timing belt?

12/21/2014 12:18 AM

That's the closest I seen so far, but not quite the same.

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lyn
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#7

Re: What do you call this kind of timing belt?

12/20/2014 7:52 PM

These guys have them too.

sales@pic-design.com
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dkwarner
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#9
In reply to #7

Re: What do you call this kind of timing belt?

12/21/2014 12:21 AM

I think you've got it! The 2-core non-slip series,

Thanks!

And Merry Christmas to you too! ...and to everyone on CR4!

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JRiversW
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#10
In reply to #9

Re: What do you call this kind of timing belt?

12/22/2014 12:39 PM

Just a suggestion, but if you are modifying the machine anyway why not change to a standard timing belt arrangement and reduce any sourcing for replacement issues?

PIC and W.M.Berg make some neat stuff, but it's their stuff whereas metric pitch timing belts and sprockets can be had from multiple sources.
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dkwarner
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#12
In reply to #10

Re: What do you call this kind of timing belt?

12/31/2014 6:04 PM

There is certainly merit to your idea, as verified by shivaganti, but all we need for now is one belt a few links longer. I didn't know where to find them. Now I do!

We do like the combination of positive synchronization with virtually zero backlash, the ability to use sprockets on either side of the belt, and quiet operation that this system offers.

Thanks to all, and Happy new year!

D

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shivaganti
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#11

Re: What Do You Call this Kind of Timing Belt?

12/31/2014 12:35 AM

As you are changing the machine anyway, it is better to change the belt also. I believe it will also make the machine more energy efficient.

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Users who posted comments:

dkwarner (4); Fredski (2); JRiversW (1); lyn (3); shivaganti (1); Tornado (1)

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