Tx Jim said: (quoted from post at 08:16:38 01/21/10)
JMOR
Please correct me if I'm wrong but in the photo of the 2 pto shafts in a working situation if one turns right or left(drawn impl.) the angles will be similar to the shaft marked "WRONG". I can't vision how the photo marked "right" would happen on a drawn impl.
To keep u-joints from rattling the angles need to be the same degree. If distance of pivot point(hitch pin) is in the middle of u-joints the degree of angles will be the same provided the pto shaft on tractor is centered. This is why JD came out with the Equal Angle hitch before they went to Constant velocity joints.
That is what I get for using artwork that is available instead of creating my own. There are two separate and distinct things being illustrated in that old drawing. 1) the equal angles at the two ends of the shaft, for best constant angular velocity and 2) a 90 degree incorrect phasing of the two u-joints.
Turning with a drawn implement, you stated,"To keep u-joints from rattling the angles need to be the same degree. If distance of pivot point(hitch pin) is in the middle of u-joints the degree of angles will be the same provided the pto shaft on tractor is centered. ", which is a FACT.
Further more the shaft/joint angles would be as in the old lower sketch, i.e., both turned down with equal angles, as you also said. I was just trying to show equal angles & did not have a drawing with everything correct in both the turning positions of the 2 joints AND the phasing. The old bottom sketch has correct turning joint positions, but INCORRECT phasing.
I hope all that makes sense.......I expect it does, I can tell from your statements that you know how all this works. You will like this better, as now I have both items correct in upper and both items wrong in lower, for a turning tractor/drawn implement.
I sure do a lot of work for you...if I keep this up, someday I'll be good at Paint Shop Pro!
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