3 point disk question

I was told a long time ago that the old disc that had the boxes for bearings would cut better than the ones with the sealed bearings has anyone else heard this? Makes me wonder about those little disc at tractor supply if they will cut better I know they are light but are they better than the sealed bearing ones
 
A disk's cutting ability is determined almost entirely by weight per blade. You can fine-tune the cutting with the blade angle but no amount of angle will make up for a lack of weight. The bearing style will only effect how much maintenance is required and how hard it pulls - sealed bearings are better on both counts.

I can tell you from first-hand experience that lightweight 3-point disks just don't work well in hard ground or in heavy trash. (Mine was a 500-lb 5-ft model.)
 
NH,
I do not think the type of bearing a disc has will have a lot to do with how well it will cut. I do think a disc with roller bearings will pull much easier and you are not having to lube the disc all the time.

I think the weight of a disc, (heavier) the better and having slotted blades will make a disc cut better.

I have an Altas 300 6ft. Disc, it does an ok job as I would call it a med weight disc. But it has the old type bearings that have to be greased.
 
(quoted from post at 20:00:12 04/12/14) I was told a long time ago that the old disc that had the boxes for bearings would cut better than the ones with the sealed bearings has anyone else heard this? Makes me wonder about those little disc at tractor supply if they will cut better I know they are light but [b:ee0bef46bf]are they better than the sealed bearing ones[/b:ee0bef46bf]

No.
 
Actually should be the other way around as the sealed bearings pull easier so you could add more weight for cutting with the same amount of pull.
 
NH,
you did not mention what type tractor you will be pulling the disc with.

However, if you have not bought a disc,

just so you know, I bought a 6ft Tufline disc once, it's one of the best disc out there, had roller bearing,

but it was so heavy that my little TO35 Ferguson could not handle it when I picked it up at the ends. It pulled great and cut fine, but at the ends I had to guide the tractor with the brakes because the front wheels were only kissing the ground, no control.

so I sold it and bought a mid weight disc, not as good, but the little TO-35 can handle it much better.
plan to give it a good cleaning and some new paint this spring, good little disc for a small tractor.

also note: if your disc has slotted blades like mine on the rear gangs. They tend to tangle with any drag that you might want to pull to level with. Solid blades on the rear gangs work much better with drags.
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I got plenty of tractors probably pull it with a 70 hp,I was told one time that the old Ford disc I think the 221 was one of the best about breaking and the reason was because it had the old spool bearings
 
The Ford 221 had a unique feature in that when deep cutting was required the rear gangs could be folded up and over the front gangs. This put all the weight of the disk on just the front gangs which made them cut deeper. It's a neat design - a "bush and bog" disc for heavy cutting and a tandem disc for finish work, all in one implement. This model was also available with big blades, up to 28" according to the parts catalog, which would also be an advantage for deep tillage.
 
That is the model that I am looking far the frame set down low on the blades and it had the box type bearings and they were very good disc
 

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