debateing PTO Conversion

[FiremanKyle]

Well debating if I should upgrade the PTO shaft to the larger size on my 45 2N. Trans/Hydraulic Oil is out, so was wondering of the plusses/minuses to convert it. I am not aware of a leak on the bearing seal.

 

[John Deere D]

Do you plan, or is there a chance, you may purchase an Implement in the future that is required to be operated with the larger PTO SPLINED (diameter ) shaft ?

I purchased a John Deere Groomer....I'm sure glad I had installed the larger PTO SPLINED (diameter ) shaft in my 2-N...
The Larger PTO shaft was removed from one of my Ferguson TEA-20's parts Tractors..

Bob..

 

[Den N Ms]

FiremanKyle , If you have a bush hog rotary cutter and have a over run clutch you will have to get a new one for the larger shaft.Some of the new shafts wont fit into the housing,(bearing retainer is made to big in diameter) . You are better off to let sleeping dogs lay.

This post was edited by Den N Ms on 12/29/2022 at 09:55 am.

 

[RM-MN]

It will depend on what items you already own that use the smaller size spline and what items you have on your wish list that come with the larger size. I converted mine because I had no item that used the small size and one that I used regularly that needed the larger size. I had an adapter that I could have used but it was never convenient to where I needed it.

 

[2ruNgineer]

'46 2N. I just replaced mine this last year. Should have done it long ago. The conversion shaft i had to use for my finish mower would never last very long and when I was changing fluids this year had the shaft ordered and ready to insert. Easy changeover.

 

[Tim PloughNman Daley]

Everything is and has been made with the SAE 1-3/8 SPLINE for decades now and they don't make the 1-1/8 Spline anyway. If system works fine, why change? A simple adaptor always works for me. New ones are tad longer so call Derek first and ask him.


Tim Daley(MI)

 

[TheOldHokie]

(quoted from post at 00:33:19 12/29/22) Well debating if I should upgrade the PTO shaft to the larger size on my 45 2N. Trans/Hydraulic Oil is out, so was wondering of the plusses/minuses to convert it. I am not aware of a leak on the bearing seal.

Plus is it makes it standard. There are no minuses.

TOH

 

[Caryc]

(quoted from post at 22:32:51 12/28/22) FiremanKyle , If you have a bush hog rotary cutter and have a over run clutch you will have to get a new one for the larger shaft.Some of the new shafts wont fit into the housing,(bearing retainer is made to big in diameter) . You are netter off to let sleeping dogs lay.

Some of the new shafts indeed won't fit into the tractor housing. Below is a pic of exactly what part is too large to fit in the hole.

I had a large mill file that I had ordered for some other purpose. It had smooth edges on it. I used that file to file down the flange without doing any damage to the face of the bearing housing. It was a bit of work filing that down to get it to fit but still worth it.

I could have made the job easier by using a 1" rotary file to enlarge the hole in the tractor but I didn't want to deal with getting metal filings into that hole.

This post was edited by Caryc on 12/29/2022 at 08:49 am.

 

[Leroy]

I have both a 41 9N and a 44 2N with the orignal shaft and will never have the larger shaft put in as long as I own them. I do have the orignal factory adapter for the 1 3/8 shaft that bolts with 4 bolts to the rear end housing and with bearings to stand the load, That bearing in the rear end ther small shaft rides in was not desigened to take the load from the PTO shaft. Ity is a wonder that tractors with the new 1 3/8 conversion do not contitinu destrow that bearing as it was never designerd for a sideways load. But the orignal Ferguson mounted mower did use a v belt pully on the shaft but thay load was very close to the bearingn not several inches away from it as the shafts put the load. Ferguson just used a shorter version of the orignal shaft extension but still kept that sideways load off the bearing.

 

[TheOldHokie]

(quoted from post at 13:57:32 12/29/22) I have both a 41 9N and a 44 2N with the orignal shaft and will never have the larger shaft put in as long as I own them. I do have the orignal factory adapter for the 1 3/8 shaft that bolts with 4 bolts to the rear end housing and with bearings to stand the load, That bearing in the rear end ther small shaft rides in was not desigened to take the load from the PTO shaft. Ity is a wonder that tractors with the new 1 3/8 conversion do not contitinu destrow that bearing as it was never designerd for a sideways load. But the orignal Ferguson mounted mower did use a v belt pully on the shaft but thay load was very close to the bearingn not several inches away from it as the shafts put the load. Ferguson just used a shorter version of the orignal shaft extension but still kept that sideways load off the bearing.

Another graduate of the Wong Way school of engineering.

TOH

 

[HFJ]

(quoted from post at 00:33:19 12/29/22) Well debating if I should upgrade the PTO shaft to the larger size on my 45 2N. Trans/Hydraulic Oil is out, so was wondering of the plusses/minuses to convert it. I am not aware of a leak on the bearing seal.

changing out the PTO was the second thing i did with my 2N when i got it. in my case, it proved to be the easiest mechanical job ever. i just got a new one from eBay. it came with a new longer cap, as the original cap will no longer fit the longer shaft. happily, mine required no filing. i have no idea who derek is. i didn't speak to him

[i:72bc812ee1][b:72bc812ee1]If[/b:72bc812ee1][/i:72bc812ee1] i understand the concern about the bearing correctly, the new shaft comes with its own bearing. i don't know if it's more robust than the original. after a decade, mine is still fine. i don't recall anyone posting about that bearing failing.

 

[TheOldHokie]

(quoted from post at 15:24:14 12/29/22)

(quoted from post at 00:33:19 12/29/22) Well debating if I should upgrade the PTO shaft to the larger size on my 45 2N. Trans/Hydraulic Oil is out, so was wondering of the plusses/minuses to convert it. I am not aware of a leak on the bearing seal.

changing out the PTO was the second thing i did with my 2N when i got it. in my case, it proved to be the easiest mechanical job ever. i just got a new one from eBay. it came with a new longer cap, as the original cap will no longer fit the longer shaft. happily, mine required no filing. i have no idea who derek is. i didn't speak to him

[i:d2844ff89a][b:d2844ff89a]If[/b:d2844ff89a][/i:d2844ff89a] i understand the concern about the bearing correctly, the new shaft comes with its own bearing. i don't know if it's more robust than the original. after a decade, mine is still fine. i don't recall anyone posting about that bearing failing.

I believe that bearing is an industry standard 6206 deep groove radial ball bearing. It is specifically designed for radial ("side") loads and has a static load rating of 2540 lb-ft and a dynamic capacity of 4384 lb-ft. As with just about every aspect of 8N design it is more than adequate for a 25 HP tractor PTO and the outside diameter of the fricking spline is meaningless in that regard.

My apologies for sounding cranky - my patience with online nonsense is wearing thin.

TOH

 

[Caryc]

(quoted from post at 12:24:14 12/29/22)

(quoted from post at 00:33:19 12/29/22) Well debating if I should upgrade the PTO shaft to the larger size on my 45 2N. Trans/Hydraulic Oil is out, so was wondering of the plusses/minuses to convert it. I am not aware of a leak on the bearing seal.

changing out the PTO was the second thing i did with my 2N when i got it. in my case, it proved to be the easiest mechanical job ever. i just got a new one from eBay. it came with a new longer cap, as the original cap will no longer fit the longer shaft. happily, mine required no filing. i have no idea who derek is. i didn't speak to him

[i:73e1de0f82][b:73e1de0f82]If[/b:73e1de0f82][/i:73e1de0f82] i understand the concern about the bearing correctly, the new shaft comes with its own bearing. i don't know if it's more robust than the original. after a decade, mine is still fine. i don't recall anyone posting about that bearing failing.

Yes, the new shaft comes with it's own bearing and housing. Just pull out the old one and slide in the new one.

 

[Jim in LA]

My upgrade PTO shaft fit very tight and I couldn't get it back and it was in just enough I could get two threads on the bolts out so I was able to draw it down evenly. It's gonna be fun pulling it out one day.
Those furriners need to adjust their lathe just a smidge.

 

[Caryc]

(quoted from post at 14:18:41 12/29/22) My upgrade PTO shaft fit very tight and I couldn't get it back and it was in just enough I could get two threads on the bolts out so I was able to draw it down evenly. It's gonna be fun pulling it out one day.
Those furriners need to adjust their lathe just a smidge.

Just thinking about trying to get that one out makes me so glad I took the time to file mine down and make it fit. :wink:

 

[HFJ]

(quoted from post at 16:03:17

My apologies for sounding cranky - my patience with online nonsense is wearing thin.

TOH

no worries. i thought the stated concern was... peculiar, and, as u said, inspired by a dubious muse. these newfangled shafts don't skeer me :mrgreen:

 

[Duner Wi]

Minus would be if you have an ORC like this.
https://www.yesterdaystractors.com/C670F_PTO-Overide-Clutch_673.htm

Now you need to purchase another to fit new 1 3/8 shaft.

 

[Caryc]

(quoted from post at 16:17:55 12/30/22) Minus would be if you have an ORC like this.
https://www.yesterdaystractors.com/C670F_PTO-Overide-Clutch_673.htm

Now you need to purchase another to fit new 1 3/8 shaft.

I purchased a new ORC when I bought the new shaft. I haven't thought about it since. So what? I purchased the new ORC with the push button release. I take it off and shoot it full of grease instead of letting it sit out in the weather.

By the way a new shaft even comes with a new PTO cover.