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Ground round link belt

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Downunder Bob

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#1
Has anyone here used ground round link belt. I have an application where the belt has to change direction at 90 deg going over an idler pulley. It would seem to me that this type iof belt wiould be suitable for that.

What I want to know is has anyone had experience with doing that. and what kind of HP can these belts take, and do they run on standard V groove pulleys?

I'm doing some research for a future project, so thanks for any comments.
 

Buffalo21

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#2
I have an Atlas horizontal mill, with a homemade vertical milling attachment, that uses a flat style link belt, with no issues. GM used a standard v-belt that changed 90 degrees on the Corvair, with no real issues.
 

DiscoDan

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#3
Hey Buffalo 21, I have been looking at the Atlas as well as some other horizontals. Can you post a few pics of your Atlas and the vertical head you made?
 

rgray

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#4
We had a commercial zero turn riding mower that drove the blades with a belt off the horizontal engine (25 hp)
I found this diagram. https://www.partstree.com/parts/tor...1-230006000-2003/belt-and-idler-arm-assembly/

One we rented had a longer belt running from the motor and ran all three spindles. 90 degree direction change right under the motor.5/8 v-belt.
The one in the diagram is # 13 and on that mower the belt drives the center spindle and another drives off it to turn the outboard spindles.
 

Buffalo21

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#5
Hey Buffalo 21, I have been looking at the Atlas as well as some other horizontals. Can you post a few pics of your Atlas and the vertical head you made?
I made the vertical attachment for the Atlas MFC horizontal milling machine, FEFBB829-E4DE-4772-92C4-1112432252E6.jpeg 2EB3FCE1-52FC-4E09-AA58-56BD38047909.jpeg about 12-15 years ago. I used a 2” socket weld T, as the main body, with 2 made bearing holders that were welded to make an assembly. There is a double row bearing on the bottom, with a single row at the top. It uses a MT#2 Jet drill press spindle.

At one time I was machining small Bakelite and UHMPE parts, so this worked great, I still use it 2-3 times a year, when small parts are being done.
 
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Downunder Bob

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#6
G'day Buffalo 21 and rgray. that is exactly what I need for my application. the vertical mill adaptor is what I have begun building, some pics coming soon, but mine is an adaptor for my lathe. the plan is remove the chuck fit a pulley to the spindle, rigidly clamp a column to the lathe bed, The column supports the horizontal beam which carries the vertical spindle, remove compound slide and tool post, attach work piece to cross slide. The belt path will be almost exactly the same as yours.

Your comments give me encouragement to forge ahead. I had heard about the ground round belt for this application, but couldn't find anyone who had used it and no one appears to carry it in Australia. Plus all the internet sellers want to sell ridiculous quantities like 25m. many sellers in USA will not ship to Australia.

I also take the point with the Toro mower and the Corvair. Yet talk to belt people and they say don't do it. Then again as we all know, experts often don't know s***.
 

Bi11Hudson

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#7
I have been considering building a vertical for my MFC, glad to see other projects of this nature.

A parting shot, if I may:
An amateur built the Arc, experts built the Titanic,
An "expert", when broken down into its' component parts;
An "Ex" being has been, and "Spurt" being a drip under pressure.

Just use a "V" belt, a small profile and don't worry about it.
 

Downunder Bob

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I have been considering building a vertical for my MFC, glad to see other projects of this nature.

A parting shot, if I may:
An amateur built the Arc, experts built the Titanic,
An "expert", when broken down into its' component parts;
An "Ex" being has been, and "Spurt" being a drip under pressure.

Just use a "V" belt, a small profile and don't worry about it.
Thanks Bill, I will have to try that

Here in Downunder we use a variation. Ex (x is the unknown quantity) and a spurt remains a drip under pressure.
 

Bi11Hudson

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#9
Two people seperated by a common language, as the saying goes.

My first mistake was Arc should have been Ark. Well, duuhhh...

And then the matter of [ex] versus [x]. I agree that "x" is the unknown quantity. But a common (at least here) usage is that of an exhusband, or exgirlfriend, or exsailor, or ex-whatever, as long as it isn't an ex-Marine, because there is no such thing. No, I'm not a gyrene, ex or otherwise, just have a huge respect for them. That is the "ex" I was referring to. Where the "has been" came from. Purely derogatory, intentionally. Too much dealing with lawyers, I guess. I got a slew of comments about that so better be off.

I've never tried it so couldn't say whether they would go around corners. But I am quite taken with the "Gates 5M" series of belts. The numbers following, such as 5M710, are the length in MM. A very nice, hi torque, belt that runs quiet and fast, and has surprisingly high torque.
 
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