building a 3 point disc

[spo307]

I am in the process of building a 3 pt, tube. disc frame is 4' x 4', I have the disc's 18" notched with 1' square hole, making a one row disc as opposed to a two row just to expose rocks before roto tilling. I see asc have axles and 4 bolt square bore bearings, short and long spacer for each side of bearing.
questions:
does anyone have close up pictures of a 3 point disc sealed bearing and gang ?
7 1/2' space or 9" ?
axle length to cover L4400 tires ?
angle to set disc's at? (more aggressive being single row) ?

would appreciate any suggestions thank you, Dennis

 

[oldnslo]

On my Ford 54" tandem disc the spacing is 9". The short spacer would go between the bearing and the back of the disc blade, Long spacer goes between the bearing and the cutting side of the disc blade. Won't a single gang have a tendancy to push the rear of the tractor sideways? If you want to expose rocks a chisel plow of field cultivator will lift them out better than a disk and if the rocks are too large you can also break the disk blades.

 

[bullbreaker]

Heres one thread here on member who made his own : http://www.tractorbynet.com/forums/build-yourself/81139-finally-finished-disk-harrow.html

Boone

 

[spo307]

something like this

 

[Camdigger]

There is no difference in the gangs for a 3Pt mounted unit than a towed on of similar size.

 

[spo307]

I just sold this disc

 

[grnspot110]

I built mine from an old JD drag disk. Made it as an "offset":





grnspot

 

[kateean2]

There is no difference in the gangs for a 3Pt mounted unit than a towed on of similar size.

 

[spo307]

There is no difference in the gangs for a 3Pt mounted unit than a towed on of similar size.

understand that, i dont have a disk to measure or refer to I am building from scratch, 5 disc's per side 7 or 7 1/2 spacers not sure which one is correct, what axle lenght? looking at agri supply there is 33 1/2, 34, and 39 inch axles, 5 disc's 7" spacing 28" plus 5/8 for 5 blades, plus bumper washer? thoughts thanks

 

[sweettractors]

understand that, i dont have a disk to measure or refer to I am building from scratch, 5 disc's per side 7 or 7 1/2 spacers not sure which one is correct, what axle lenght? looking at agri supply there is 33 1/2, 34, and 39 inch axles, 5 disc's 7" spacing 28" plus 5/8 for 5 blades, plus bumper washer? thoughts thanks

33.5 is what comes on our new 2016 and 2018 discs. You can actually lay it out on a tape measure. Ken Sweet

 

[spo307]

made hanger brackets 3/8 x 6 x 13 high, gonna chop off back half

 

[spo307]

is the 33.5 from spud end of axle to the start of the threads of the end of threads,, sorry only want to have to order once

 

[sweettractors]

is the 33.5 from spud end of axle to the start of the threads of the end of threads,, sorry only want to have to order once

End to end total overall length. Lay a tape measure on the table and start marking 5 blades 7" apart if you get parts from agri supply. Ken Sweet

 

[spo307]

frame is done

 

[sweettractors]

frame is done

Excellent work. If I could make a suggestion? If I were building it, I would cap off 1 end of the square tubing and pour sakrete or old scrap bolts and nuts down the other end and then cap it off. More weight is better. Ken Sweet

 

[spo307]

Thanks ,Thats 1/4 tube the frame has some weight, going to use 39 1/2 axles 6 disc's each side.
To add weight going to use train rail @ 119 lbs pr foot. I really am looking to disc 2 to 4 inches after that rocks start growing lol

 

[flusher]

I just sold this disc

Nice looking disc:thumbsup:
Unfortunately, it's too purty to use in the hayfield

 

[spo307]

finished handle, should have made lower 3 point attach plat from one piece, welded single tab then added top and bottom plates, was tired

 

[muddstopper]

Just to help you when adding your weight, Railroad rail is weighed in 3ft sections. Most likely your 119lb rail is per 3 ft and not per ft