Belt driven implements

WarrenBult · Apr 18, 2011

With the older belt driven shellers, buzz saws and others, they were driven by the belt pulley of the tractor, question is, did they have the same rpm as a pto does and where the rotateing in the same direction. Has anybody made a three point adapter to run the belt to the implement ILO of the pulley on the side of the tractor. Picked up a belt driven sheller, but have no tractors with the belt pulley or a stationary motor with the pulley. Trying to figure a way to run it. So not know if I want to run it directly from the pto.

Bob · Apr 18, 2011

"With the older belt driven shellers, buzz saws and others, they were driven by the belt pulley of the tractor, question is, did they have the same rpm as a pto does and where the rotateing in the same direction."

I would say there was NO standard shaft RPM, as there were MANY different-sized driven pulleys used on various equipment.

Even PTO speeds were not standardized at first.

I would say you will need to determine the operating speed and direction of the machine and set up a drive accordingly.

John Harmon. · Apr 18, 2011

At home our IHC belt driven Hammer Mill had a warning sign attached to"not exceed 500 RPM" We had no way to guage the belt RPM so my Dad's as usual method of running it was wide open when the 70 was on it and about 3/4 throttle when the 88 was on it. He had a few Oliver Tractors but only these 2 were ever used on the Hammer Mill. The Mill was serviced every march by the IHC dealer.

showcrop · Apr 18, 2011

There was a pulley adapter for the four cylinder Fords. They turn up on ebay pretty regularly.

Anonymous-0 · Apr 18, 2011

I have a buzz saw that goes on a IH Cub.,and runs through a right angled gear box. I don't know the ratio between the PTO and the speed at the output of the gear box but I know it is a lot faster than the pto or it wouldn't cut wood. As far as the rotation of the tractors with the side mounted belt pulleys, it didn't matter, You would just cross the belt and it would give you the right rotation. Hope this helps. Also the belt pulleys on older tractors would run faster as you opened the throttle, and I think PTO's run at a constant speed.

farmerjohn · Apr 18, 2011

I remember seeing once a 3 pt hitch platform with pto shaft going to a gearbox and a belt pulley on the side of the gearbox, pretty simple setup, I think it was factory made.

in-too-deep · Apr 18, 2011

Looks like you found an excuse to buy a tractor! Lucky!

ohiojim · Apr 18, 2011

belt pulleys were rated in feet per minute not rpm.....as for the pto shaft it did increase as engine speed increased, you got 540 at a certain engine rpm, go slower the pto slowed down

CLTX · Apr 18, 2011

The two cylinder JDs ran the belt pulley at engine RPM. I can't speak for the IHs, Cases, Olivers, etc., but I suspect it was the same. All the belt driven implements I remember were the threshing machine and a lift pump, both of which had a larger pulley, IIRC. And rotation was reversed by putting a twist in the belt.

Earl Gray · Apr 18, 2011

How can the pto run at a constant speed when you change engine rpm? think about it! They are geared solidly together when engaged! Most 540 pto's are geared to run 540 at a little less than governed engine speed and proportionally faster or slower as the engine changes speed. Belt pulleys were designed to provide about 3200 feet per minute at a little less than governed speed, give or take a little.

kj(seil) · Apr 18, 2011

Uncle had a stationary stand that was pto driven thru sheaves and v-belts that turned a belt pulley to drive a sheller, and run a hammer mill, ran it with ford

IOWA NORTHEAST · Apr 18, 2011

There are several charts explaining pulley size of implment----pully size on tractor ---equal set RPM's.

As a side note, but if you twist the belt on say a WD 45, and you straddle the belt, and pinch it together with your hands between your knees--then clap tighter with your knees---you can put that tractor on it's knees, and it will never start the belt, just kill the engine.

I once had a step by step printed page dealing with the chart, and also what you needed to do to correct a belt problem.

Many folks are unaware that with a two cylinder tractor putting it's ALL into a belt, the belt will jump and flop around.

To help this on a straight belt, you twist the belt on one pulley---not to be confused with a twisted belt to reverse the direction. By turning the belt inside out on one pulley, the belt will settle down 90%.

A long belt can be effected by a strong side wind also.

A flat pulley is more apt to toss a belt. You can help this by wrapping duck tape in the center of the pulley, to make it a crown effect......and eliminate some belt throwing issues.

36 Coupe · Apr 18, 2011

A cordwood saw arbor should run at 1000 rpm so the Ford belt pulley stepped up the 550 rpm of the pto shaft.You can buy RPM indicators that will give you the answer.

gene bender · Apr 18, 2011

Belt pulley shaft speeds were different from tractor to tractor. The imp[lement you wanted to run speed would be set by what size belt pulley on the tractor thats why different sizes of pulleys were available. The pulleys shaft was always much faster then the PTO. Hammer mills ran very fast like around 2200 RPMs to grind grain. Now a elevator that used a jackshaft ran much slower and later on the elevator was ran off the PTO. So you see not all belt driven implements ran the same RPMs. Ground thousands of shelled corn thru a hammer mill and also ear corn for cattle feed.

gene bender · Apr 18, 2011

You have something mixed up as you woulshave a awful hard tim to get a belt pulley to run that slow they run faster than 500 at slowest idle of the engine.

sammy the RED · Apr 18, 2011

From my 1946 Farmall H manual:

Pulley speed is 1,019 r.p.m.

Belt speed with a 9 3/4" diameter pulley is 2,601 f.p.m.

GaryinKs · Apr 18, 2011

Iowa Northeast, please explain what you mean by twist the belt without reversing direction, I dont follow what you mean, TY

armand tatro · Apr 18, 2011

What kind of tractor do you have? For instance the Oliver models 1700 thru 1855 had a right angle gear box with a belt pulley mounted on it that mounted on the pto to power a corn sheller or whatever other implement you may have. These also fit on the 770 and 880 Oliver"s also. I saw a picture of a D 4 or D 6 Cat. with a rear mounted right angle gear box with belt pulley to power a cornsheller. I want they where aviable for other tractors as well. Armand

Anonymous-0 · Apr 18, 2011

I'll take a stab at it. The standard "twist" we think of puts the belt in a figure 8 reversing the direction of rotation of the driven pulley. The other "twist" is to turn the belt inside out on one pulley. If the belt had a red side and a white side, on one pulley the red side would be in contact with the pulley while on the other pulley the white side would be in contact with the pulley.

teddy52food · Apr 18, 2011

That was a burr mill , not a hammer mill.

Tom from Ontario · Apr 18, 2011

The old order folks have lots of these 3 pt hitch units with a gearbox to run a pulley. Usually so they can run a good sized more modern diesel tractor on a thrasher.

John Harmon. · Apr 18, 2011

That was a sheller he was talking about and I was just remembering how it was at my place in the 1950's. I was not making any comparisons at all. How's things at your place?

John Harmon. · Apr 18, 2011

Yeah you are right. That should have been "3500 "RPM not "500" RPM.

IOWA NORTHEAST · Apr 18, 2011

I never do so good explaining things, but just take the belt off one pulley and turn it inside out. This will also help if you have a gas engine bolted down and the implment bolted down with a belted unit. Then your belt gets to loose.....you give it the inside out twist, and it tightens the belt just a little.

On a two cylinder that is slapping the belt, (usualy when you are putting the tractor on it's knees)if you are not careful you can put tear marks on a belt.

I learned this when I had a JD B on a Baker fan. A old JD man came up and suggested the inside out method............it cured the belt problem.

Every one will tell you that you are off your rocker until you show them.

One time at a show, a very fat guy did not use the cat gut for a belt splice. He used a stiff wire, and he was going to toss the belt before letting the long belt stop. The wire caught his sleve, and drug him. He got up to a fast pace, but his pants and underware cam a little slower as it drug him. After that I pretty much use the cat gut, or plastic.

Dean · Apr 19, 2011

Most flat belt driven equipment is rated in linear feet per minute (fpm) because there was no standard pulley size for tractors.

Dean

Belt driven implements

Member

Well-known Member

Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Member

Member

Member

Member

Well-known Member

Well-known Member

Well-known Member

Well-known Member

Member

Well-known Member

Well-known Member

Well-known Member

Member

Member

Member

Member

Well-known Member

Similar threads