tractor speeds

[Robert12345]

just out of curiosity what are the following tractor speeds cubs are 8.5 mph and 3 speed, what model intrnationals first go to 4 speed?. what is the speed of the a series and the m series. live in suburbs so any thing larger than an m out of the question.

 

[Janicholson]

TractorData.com lists speeds in gears (as provided by the manufacturer) with the most common tire size. Tire size can make 1.5 to 2 mph difference. Farmall H Sh 300 350 300 and 350Utility and M SM SMTA 400 450 all were in the 16 to 18 mph range. Jim

 

[Bob M]

The the guy I occasionally worked for fitted tires 1 or 2 sizes bigger than stock and tweaked the governors on his H and M sidewalk snow plow tractors. They were good for 21 - 22 mph in light snow....

 

[redforlife]

I always figured the H's and M's go around 15 mph. Book probably says a tad more. But who really runs them with the throttle opened up as far as it'll go??

I'm not really into the smaller sizes, but I'm guessing they don't go any faster than the bigger brothers. Some of the smaller sizes might of not been equipped with a road gear. Someone else maybe can answere that.

H's and M's were all 5 speed except the steel wheel versions. And they just had the 5th gear blocked out so you couldn't shift into it.

The F- series (before the letter series), basically didn't have road gears. But a few had aftermarket ones added on.

The 100 series, was much the same as the letter series.

 

[caterpillar guy]

From a couple Of the A's or super A's I drove they were slow like maybe around 10-11 MPH with all the throttle I could get. B and C would be about the same with 4 spd supers were no faster to speak of if I remember right. The 100nor 50 series would be about the same speed as the letters were might find one with a bit more if it has bigger tires or governor adjusted slightly different. At the Mackinaw bridge crossing they have a 10 MPH minimum and the A,B,C,B/N's all were accepted for speed. once into the 06 series and up they were a bit faster than the older models by a bit maybe hit 20 wide open.

 

[Frank Caldwell]

I have a free app on my I-phone that I got from the App Store. My cub does 6.5 mph. My M does 22. The W9 does 18. The F20 does 10. The super c does 12. My old electric gold cart does 7.

 

[BarnyardEngineering]

(quoted from post at 18:58:31 02/22/23) just out of curiosity what are the following tractor speeds cubs are 8.5 mph and 3 speed, what model intrnationals first go to 4 speed?. what is the speed of the a series and the m series. live in suburbs so any thing larger than an m out of the question.

The number of speeds is not really a factor because the highest gear in all IH tractors is "direct drive" meaning there is no gear reduction through the transmission to the differential. Even on Cubs.

Cubs top out around 7.5MPH.
A's B's and C's will do about 10MPH.
H's and M's go about 15MPH.

That's with stock size tires at rated engine RPM.

 

[Jim Becker]

(quoted from post at 08:04:24 02/23/23). . . The number of speeds is not really a factor because the highest gear in all IH tractors is "direct drive" meaning there is no gear reduction through the transmission to the differential. Even on Cubs.

Not correct for all models. The A/Super A and close relatives have a fourth gear with 37 teeth driving 24 teeth. I think they were the same through the 130. The 140 may be a little different. I think the C used the same transmission gears but maybe a different ratio in the ring/pinion to compensate for the larger tires.

Third gear in a Cub is 1:1 or very close, but it is not direct drive.

 

[rustyfarmall]

Unless the tractor is being driven on an absolutely SMOOTH road, ALL tractors will go much faster than what is safe.

Tractors have NO suspension, and WILL start bouncing when a rough stretch is encountered.

 

[55 50 Ron]

When I was a teenager, we had a McCormick-Deering W30 that had 4 speeds, 4th being road speed, and it moved right along. Not sure if we ever measured, but it probably did 15 MPH. It was a late 1930s model.

 

[DR. EVIL]

SON had that ap on his smart phone, we were exercising the tractors, the '51 M with 13.6x38 tires ran about 16 mph, it needed the governor turned up a tiny bit, Super H was just shy of 18 mph on 12,4x38 tires, the IH tachometer hour meter I bought in 1969 and installed says it runs close to 1850-1900. I normally ran around 1500-1600 when using it, I'd pull her ears back if I knew a hard pull was coming.

 

[T in NE]

I'm thinking 4th in the H and M and their
progeny is direct, and 5th is overdriven.

 

[495man]

A and up were 4 speed.

C will have a decent road speed in 4th.

Do you want an old Farmall, or just an old IH?

I'd get a utility with 3pt hitch. Old B-414 is classic and yet still modern with live PTO, diff lock 3pt and has 8 speeds. Good for 15-16 MPH or so.

 

[495man]

(quoted from post at 11:31:29 02/23/23)
Unless the tractor is being driven on an absolutely SMOOTH road, ALL tractors will go much faster than what is safe.

Tractors have NO suspension, and WILL start bouncing when a rough stretch is encountered.

Have to let off on the throttle when it's rough. I do a lot of road haulage with a 20 MPH unsuspended tractor, just the suspension seat. Paved roads but frost heave & salt do a number on them, pot holes etc.

Newer 30MPH tractors with suspended front axle, suspended cab and air ride seat much smoother.